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<h1><a href="../../index.html">MIT Kerberos Documentation</a></h1>
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<div class="section" id="kadmin">
<span id="kadmin-1"></span><h1>kadmin<a class="headerlink" href="#kadmin" title="Permalink to this headline">¶</a></h1>
<div class="section" id="synopsis">
<h2>SYNOPSIS<a class="headerlink" href="#synopsis" title="Permalink to this headline">¶</a></h2>
<p id="kadmin-synopsis"><strong>kadmin</strong>
[<strong>-O</strong>|<strong>-N</strong>]
[<strong>-r</strong> <em>realm</em>]
[<strong>-p</strong> <em>principal</em>]
[<strong>-q</strong> <em>query</em>]
[[<strong>-c</strong> <em>cache_name</em>]|[<strong>-k</strong> [<strong>-t</strong> <em>keytab</em>]]|<strong>-n</strong>]
[<strong>-w</strong> <em>password</em>]
[<strong>-s</strong> <em>admin_server</em>[:<em>port</em>]]
[command args…]</p>
<p><strong>kadmin.local</strong>
[<strong>-r</strong> <em>realm</em>]
[<strong>-p</strong> <em>principal</em>]
[<strong>-q</strong> <em>query</em>]
[<strong>-d</strong> <em>dbname</em>]
[<strong>-e</strong> <em>enc</em>:<em>salt</em> …]
[<strong>-m</strong>]
[<strong>-x</strong> <em>db_args</em>]
[command args…]</p>
</div>
<div class="section" id="description">
<span id="kadmin-synopsis-end"></span><h2>DESCRIPTION<a class="headerlink" href="#description" title="Permalink to this headline">¶</a></h2>
<p>kadmin and kadmin.local are command-line interfaces to the Kerberos V5
administration system. They provide nearly identical functionalities;
the difference is that kadmin.local directly accesses the KDC
database, while kadmin performs operations using <a class="reference internal" href="kadmind.html#kadmind-8"><span class="std std-ref">kadmind</span></a>.
Except as explicitly noted otherwise, this man page will use “kadmin”
to refer to both versions. kadmin provides for the maintenance of
Kerberos principals, password policies, and service key tables
(keytabs).</p>
<p>The remote kadmin client uses Kerberos to authenticate to kadmind
using the service principal <code class="docutils literal notranslate"><span class="pre">kadmin/ADMINHOST</span></code> (where <em>ADMINHOST</em> is
the fully-qualified hostname of the admin server) or <code class="docutils literal notranslate"><span class="pre">kadmin/admin</span></code>.
If the credentials cache contains a ticket for one of these
principals, and the <strong>-c</strong> credentials_cache option is specified, that
ticket is used to authenticate to kadmind. Otherwise, the <strong>-p</strong> and
<strong>-k</strong> options are used to specify the client Kerberos principal name
used to authenticate. Once kadmin has determined the principal name,
it requests a service ticket from the KDC, and uses that service
ticket to authenticate to kadmind.</p>
<p>Since kadmin.local directly accesses the KDC database, it usually must
be run directly on the master KDC with sufficient permissions to read
the KDC database. If the KDC database uses the LDAP database module,
kadmin.local can be run on any host which can access the LDAP server.</p>
</div>
<div class="section" id="options">
<h2>OPTIONS<a class="headerlink" href="#options" title="Permalink to this headline">¶</a></h2>
<dl class="docutils" id="kadmin-options">
<dt><strong>-r</strong> <em>realm</em></dt>
<dd>Use <em>realm</em> as the default database realm.</dd>
<dt><strong>-p</strong> <em>principal</em></dt>
<dd>Use <em>principal</em> to authenticate. Otherwise, kadmin will append
<code class="docutils literal notranslate"><span class="pre">/admin</span></code> to the primary principal name of the default ccache,
the value of the <strong>USER</strong> environment variable, or the username as
obtained with getpwuid, in order of preference.</dd>
<dt><strong>-k</strong></dt>
<dd>Use a keytab to decrypt the KDC response instead of prompting for
a password. In this case, the default principal will be
<code class="docutils literal notranslate"><span class="pre">host/hostname</span></code>. If there is no keytab specified with the
<strong>-t</strong> option, then the default keytab will be used.</dd>
<dt><strong>-t</strong> <em>keytab</em></dt>
<dd>Use <em>keytab</em> to decrypt the KDC response. This can only be used
with the <strong>-k</strong> option.</dd>
<dt><strong>-n</strong></dt>
<dd>Requests anonymous processing. Two types of anonymous principals
are supported. For fully anonymous Kerberos, configure PKINIT on
the KDC and configure <strong>pkinit_anchors</strong> in the client’s
<a class="reference internal" href="../conf_files/krb5_conf.html#krb5-conf-5"><span class="std std-ref">krb5.conf</span></a>. Then use the <strong>-n</strong> option with a principal
of the form <code class="docutils literal notranslate"><span class="pre">@REALM</span></code> (an empty principal name followed by the
at-sign and a realm name). If permitted by the KDC, an anonymous
ticket will be returned. A second form of anonymous tickets is
supported; these realm-exposed tickets hide the identity of the
client but not the client’s realm. For this mode, use <code class="docutils literal notranslate"><span class="pre">kinit</span>
<span class="pre">-n</span></code> with a normal principal name. If supported by the KDC, the
principal (but not realm) will be replaced by the anonymous
principal. As of release 1.8, the MIT Kerberos KDC only supports
fully anonymous operation.</dd>
<dt><strong>-c</strong> <em>credentials_cache</em></dt>
<dd>Use <em>credentials_cache</em> as the credentials cache. The
cache should contain a service ticket for the <code class="docutils literal notranslate"><span class="pre">kadmin/ADMINHOST</span></code>
(where <em>ADMINHOST</em> is the fully-qualified hostname of the admin
server) or <code class="docutils literal notranslate"><span class="pre">kadmin/admin</span></code> service; it can be acquired with the
<a class="reference internal" href="../../user/user_commands/kinit.html#kinit-1"><span class="std std-ref">kinit</span></a> program. If this option is not specified, kadmin
requests a new service ticket from the KDC, and stores it in its
own temporary ccache.</dd>
<dt><strong>-w</strong> <em>password</em></dt>
<dd>Use <em>password</em> instead of prompting for one. Use this option with
care, as it may expose the password to other users on the system
via the process list.</dd>
<dt><strong>-q</strong> <em>query</em></dt>
<dd>Perform the specified query and then exit.</dd>
<dt><strong>-d</strong> <em>dbname</em></dt>
<dd>Specifies the name of the KDC database. This option does not
apply to the LDAP database module.</dd>
<dt><strong>-s</strong> <em>admin_server</em>[:<em>port</em>]</dt>
<dd>Specifies the admin server which kadmin should contact.</dd>
<dt><strong>-m</strong></dt>
<dd>If using kadmin.local, prompt for the database master password
instead of reading it from a stash file.</dd>
<dt><strong>-e</strong> “<em>enc</em>:<em>salt</em> …”</dt>
<dd>Sets the keysalt list to be used for any new keys created. See
<a class="reference internal" href="../conf_files/kdc_conf.html#keysalt-lists"><span class="std std-ref">Keysalt lists</span></a> in <a class="reference internal" href="../conf_files/kdc_conf.html#kdc-conf-5"><span class="std std-ref">kdc.conf</span></a> for a list of possible
values.</dd>
<dt><strong>-O</strong></dt>
<dd>Force use of old AUTH_GSSAPI authentication flavor.</dd>
<dt><strong>-N</strong></dt>
<dd>Prevent fallback to AUTH_GSSAPI authentication flavor.</dd>
<dt><strong>-x</strong> <em>db_args</em></dt>
<dd>Specifies the database specific arguments. See the next section
for supported options.</dd>
</dl>
<p id="kadmin-options-end">Starting with release 1.14, if any command-line arguments remain after
the options, they will be treated as a single query to be executed.
This mode of operation is intended for scripts and behaves differently
from the interactive mode in several respects:</p>
<ul class="simple">
<li>Query arguments are split by the shell, not by kadmin.</li>
<li>Informational and warning messages are suppressed. Error messages
and query output (e.g. for <strong>get_principal</strong>) will still be
displayed.</li>
<li>Confirmation prompts are disabled (as if <strong>-force</strong> was given).
Password prompts will still be issued as required.</li>
<li>The exit status will be non-zero if the query fails.</li>
</ul>
<p>The <strong>-q</strong> option does not carry these behavior differences; the query
will be processed as if it was entered interactively. The <strong>-q</strong>
option cannot be used in combination with a query in the remaining
arguments.</p>
</div>
<div class="section" id="database-options">
<span id="dboptions"></span><h2>DATABASE OPTIONS<a class="headerlink" href="#database-options" title="Permalink to this headline">¶</a></h2>
<p>Database options can be used to override database-specific defaults.
Supported options for the DB2 module are:</p>
<blockquote>
<div><dl class="docutils">
<dt><strong>-x dbname=</strong>*filename*</dt>
<dd>Specifies the base filename of the DB2 database.</dd>
<dt><strong>-x lockiter</strong></dt>
<dd>Make iteration operations hold the lock for the duration of
the entire operation, rather than temporarily releasing the
lock while handling each principal. This is the default
behavior, but this option exists to allow command line
override of a [dbmodules] setting. First introduced in
release 1.13.</dd>
<dt><strong>-x unlockiter</strong></dt>
<dd>Make iteration operations unlock the database for each
principal, instead of holding the lock for the duration of the
entire operation. First introduced in release 1.13.</dd>
</dl>
</div></blockquote>
<p>Supported options for the LDAP module are:</p>
<blockquote>
<div><dl class="docutils">
<dt><strong>-x host=</strong><em>ldapuri</em></dt>
<dd>Specifies the LDAP server to connect to by a LDAP URI.</dd>
<dt><strong>-x binddn=</strong><em>bind_dn</em></dt>
<dd>Specifies the DN used to bind to the LDAP server.</dd>
<dt><strong>-x bindpwd=</strong><em>password</em></dt>
<dd>Specifies the password or SASL secret used to bind to the LDAP
server. Using this option may expose the password to other
users on the system via the process list; to avoid this,
instead stash the password using the <strong>stashsrvpw</strong> command of
<a class="reference internal" href="kdb5_ldap_util.html#kdb5-ldap-util-8"><span class="std std-ref">kdb5_ldap_util</span></a>.</dd>
<dt><strong>-x sasl_mech=</strong><em>mechanism</em></dt>
<dd>Specifies the SASL mechanism used to bind to the LDAP server.
The bind DN is ignored if a SASL mechanism is used. New in
release 1.13.</dd>
<dt><strong>-x sasl_authcid=</strong><em>name</em></dt>
<dd>Specifies the authentication name used when binding to the
LDAP server with a SASL mechanism, if the mechanism requires
one. New in release 1.13.</dd>
<dt><strong>-x sasl_authzid=</strong><em>name</em></dt>
<dd>Specifies the authorization name used when binding to the LDAP
server with a SASL mechanism. New in release 1.13.</dd>
<dt><strong>-x sasl_realm=</strong><em>realm</em></dt>
<dd>Specifies the realm used when binding to the LDAP server with
a SASL mechanism, if the mechanism uses one. New in release
1.13.</dd>
<dt><strong>-x debug=</strong><em>level</em></dt>
<dd>sets the OpenLDAP client library debug level. <em>level</em> is an
integer to be interpreted by the library. Debugging messages
are printed to standard error. New in release 1.12.</dd>
</dl>
</div></blockquote>
</div>
<div class="section" id="commands">
<h2>COMMANDS<a class="headerlink" href="#commands" title="Permalink to this headline">¶</a></h2>
<p>When using the remote client, available commands may be restricted
according to the privileges specified in the <a class="reference internal" href="../conf_files/kadm5_acl.html#kadm5-acl-5"><span class="std std-ref">kadm5.acl</span></a> file
on the admin server.</p>
<div class="section" id="add-principal">
<span id="id1"></span><h3>add_principal<a class="headerlink" href="#add-principal" title="Permalink to this headline">¶</a></h3>
<blockquote>
<div><strong>add_principal</strong> [<em>options</em>] <em>newprinc</em></div></blockquote>
<p>Creates the principal <em>newprinc</em>, prompting twice for a password. If
no password policy is specified with the <strong>-policy</strong> option, and the
policy named <code class="docutils literal notranslate"><span class="pre">default</span></code> is assigned to the principal if it exists.
However, creating a policy named <code class="docutils literal notranslate"><span class="pre">default</span></code> will not automatically
assign this policy to previously existing principals. This policy
assignment can be suppressed with the <strong>-clearpolicy</strong> option.</p>
<p>This command requires the <strong>add</strong> privilege.</p>
<p>Aliases: <strong>addprinc</strong>, <strong>ank</strong></p>
<p>Options:</p>
<dl class="docutils">
<dt><strong>-expire</strong> <em>expdate</em></dt>
<dd>(<a class="reference internal" href="../../basic/date_format.html#getdate"><span class="std std-ref">getdate time</span></a> string) The expiration date of the principal.</dd>
<dt><strong>-pwexpire</strong> <em>pwexpdate</em></dt>
<dd>(<a class="reference internal" href="../../basic/date_format.html#getdate"><span class="std std-ref">getdate time</span></a> string) The password expiration date.</dd>
<dt><strong>-maxlife</strong> <em>maxlife</em></dt>
<dd>(<a class="reference internal" href="../../basic/date_format.html#duration"><span class="std std-ref">Time duration</span></a> or <a class="reference internal" href="../../basic/date_format.html#getdate"><span class="std std-ref">getdate time</span></a> string) The maximum ticket life
for the principal.</dd>
<dt><strong>-maxrenewlife</strong> <em>maxrenewlife</em></dt>
<dd>(<a class="reference internal" href="../../basic/date_format.html#duration"><span class="std std-ref">Time duration</span></a> or <a class="reference internal" href="../../basic/date_format.html#getdate"><span class="std std-ref">getdate time</span></a> string) The maximum renewable
life of tickets for the principal.</dd>
<dt><strong>-kvno</strong> <em>kvno</em></dt>
<dd>The initial key version number.</dd>
<dt><strong>-policy</strong> <em>policy</em></dt>
<dd>The password policy used by this principal. If not specified, the
policy <code class="docutils literal notranslate"><span class="pre">default</span></code> is used if it exists (unless <strong>-clearpolicy</strong>
is specified).</dd>
<dt><strong>-clearpolicy</strong></dt>
<dd>Prevents any policy from being assigned when <strong>-policy</strong> is not
specified.</dd>
<dt>{-|+}<strong>allow_postdated</strong></dt>
<dd><strong>-allow_postdated</strong> prohibits this principal from obtaining
postdated tickets. <strong>+allow_postdated</strong> clears this flag.</dd>
<dt>{-|+}<strong>allow_forwardable</strong></dt>
<dd><strong>-allow_forwardable</strong> prohibits this principal from obtaining
forwardable tickets. <strong>+allow_forwardable</strong> clears this flag.</dd>
<dt>{-|+}<strong>allow_renewable</strong></dt>
<dd><strong>-allow_renewable</strong> prohibits this principal from obtaining
renewable tickets. <strong>+allow_renewable</strong> clears this flag.</dd>
<dt>{-|+}<strong>allow_proxiable</strong></dt>
<dd><strong>-allow_proxiable</strong> prohibits this principal from obtaining
proxiable tickets. <strong>+allow_proxiable</strong> clears this flag.</dd>
<dt>{-|+}<strong>allow_dup_skey</strong></dt>
<dd><strong>-allow_dup_skey</strong> disables user-to-user authentication for this
principal by prohibiting others from obtaining a service ticket
encrypted in this principal’s TGT session key.
<strong>+allow_dup_skey</strong> clears this flag.</dd>
<dt>{-|+}<strong>requires_preauth</strong></dt>
<dd><strong>+requires_preauth</strong> requires this principal to preauthenticate
before being allowed to kinit. <strong>-requires_preauth</strong> clears this
flag. When <strong>+requires_preauth</strong> is set on a service principal,
the KDC will only issue service tickets for that service principal
if the client’s initial authentication was performed using
preauthentication.</dd>
<dt>{-|+}<strong>requires_hwauth</strong></dt>
<dd><strong>+requires_hwauth</strong> requires this principal to preauthenticate
using a hardware device before being allowed to kinit.
<strong>-requires_hwauth</strong> clears this flag. When <strong>+requires_hwauth</strong> is
set on a service principal, the KDC will only issue service tickets
for that service principal if the client’s initial authentication was
performed using a hardware device to preauthenticate.</dd>
<dt>{-|+}<strong>ok_as_delegate</strong></dt>
<dd><strong>+ok_as_delegate</strong> sets the <strong>okay as delegate</strong> flag on tickets
issued with this principal as the service. Clients may use this
flag as a hint that credentials should be delegated when
authenticating to the service. <strong>-ok_as_delegate</strong> clears this
flag.</dd>
<dt>{-|+}<strong>allow_svr</strong></dt>
<dd><strong>-allow_svr</strong> prohibits the issuance of service tickets for this
principal. In release 1.17 and later, user-to-user service
tickets are still allowed unless the <strong>-allow_dup_skey</strong> flag is
also set. <strong>+allow_svr</strong> clears this flag.</dd>
<dt>{-|+}<strong>allow_tgs_req</strong></dt>
<dd><strong>-allow_tgs_req</strong> specifies that a Ticket-Granting Service (TGS)
request for a service ticket for this principal is not permitted.
<strong>+allow_tgs_req</strong> clears this flag.</dd>
<dt>{-|+}<strong>allow_tix</strong></dt>
<dd><strong>-allow_tix</strong> forbids the issuance of any tickets for this
principal. <strong>+allow_tix</strong> clears this flag.</dd>
<dt>{-|+}<strong>needchange</strong></dt>
<dd><strong>+needchange</strong> forces a password change on the next initial
authentication to this principal. <strong>-needchange</strong> clears this
flag.</dd>
<dt>{-|+}<strong>password_changing_service</strong></dt>
<dd><strong>+password_changing_service</strong> marks this principal as a password
change service principal.</dd>
<dt>{-|+}<strong>ok_to_auth_as_delegate</strong></dt>
<dd><strong>+ok_to_auth_as_delegate</strong> allows this principal to acquire
forwardable tickets to itself from arbitrary users, for use with
constrained delegation.</dd>
<dt>{-|+}<strong>no_auth_data_required</strong></dt>
<dd><strong>+no_auth_data_required</strong> prevents PAC or AD-SIGNEDPATH data from
being added to service tickets for the principal.</dd>
<dt>{-|+}<strong>lockdown_keys</strong></dt>
<dd><strong>+lockdown_keys</strong> prevents keys for this principal from leaving
the KDC via kadmind. The chpass and extract operations are denied
for a principal with this attribute. The chrand operation is
allowed, but will not return the new keys. The delete and rename
operations are also denied if this attribute is set, in order to
prevent a malicious administrator from replacing principals like
krbtgt/* or kadmin/* with new principals without the attribute.
This attribute can be set via the network protocol, but can only
be removed using kadmin.local.</dd>
<dt><strong>-randkey</strong></dt>
<dd>Sets the key of the principal to a random value.</dd>
<dt><strong>-nokey</strong></dt>
<dd>Causes the principal to be created with no key. New in release
1.12.</dd>
<dt><strong>-pw</strong> <em>password</em></dt>
<dd>Sets the password of the principal to the specified string and
does not prompt for a password. Note: using this option in a
shell script may expose the password to other users on the system
via the process list.</dd>
<dt><strong>-e</strong> <em>enc</em>:<em>salt</em>,…</dt>
<dd>Uses the specified keysalt list for setting the keys of the
principal. See <a class="reference internal" href="../conf_files/kdc_conf.html#keysalt-lists"><span class="std std-ref">Keysalt lists</span></a> in <a class="reference internal" href="../conf_files/kdc_conf.html#kdc-conf-5"><span class="std std-ref">kdc.conf</span></a> for a
list of possible values.</dd>
<dt><strong>-x</strong> <em>db_princ_args</em></dt>
<dd><p class="first">Indicates database-specific options. The options for the LDAP
database module are:</p>
<dl class="docutils">
<dt><strong>-x dn=</strong><em>dn</em></dt>
<dd>Specifies the LDAP object that will contain the Kerberos
principal being created.</dd>
<dt><strong>-x linkdn=</strong><em>dn</em></dt>
<dd>Specifies the LDAP object to which the newly created Kerberos
principal object will point.</dd>
<dt><strong>-x containerdn=</strong><em>container_dn</em></dt>
<dd>Specifies the container object under which the Kerberos
principal is to be created.</dd>
<dt><strong>-x tktpolicy=</strong><em>policy</em></dt>
<dd>Associates a ticket policy to the Kerberos principal.</dd>
</dl>
<div class="last admonition note">
<p class="first admonition-title">Note</p>
<ul class="last simple">
<li>The <strong>containerdn</strong> and <strong>linkdn</strong> options cannot be
specified with the <strong>dn</strong> option.</li>
<li>If the <em>dn</em> or <em>containerdn</em> options are not specified while
adding the principal, the principals are created under the
principal container configured in the realm or the realm
container.</li>
<li><em>dn</em> and <em>containerdn</em> should be within the subtrees or
principal container configured in the realm.</li>
</ul>
</div>
</dd>
</dl>
<p>Example:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">kadmin</span><span class="p">:</span> <span class="n">addprinc</span> <span class="n">jennifer</span>
<span class="n">WARNING</span><span class="p">:</span> <span class="n">no</span> <span class="n">policy</span> <span class="n">specified</span> <span class="k">for</span> <span class="s2">"jennifer@ATHENA.MIT.EDU"</span><span class="p">;</span>
<span class="n">defaulting</span> <span class="n">to</span> <span class="n">no</span> <span class="n">policy</span><span class="o">.</span>
<span class="n">Enter</span> <span class="n">password</span> <span class="k">for</span> <span class="n">principal</span> <span class="n">jennifer</span><span class="nd">@ATHENA</span><span class="o">.</span><span class="n">MIT</span><span class="o">.</span><span class="n">EDU</span><span class="p">:</span>
<span class="n">Re</span><span class="o">-</span><span class="n">enter</span> <span class="n">password</span> <span class="k">for</span> <span class="n">principal</span> <span class="n">jennifer</span><span class="nd">@ATHENA</span><span class="o">.</span><span class="n">MIT</span><span class="o">.</span><span class="n">EDU</span><span class="p">:</span>
<span class="n">Principal</span> <span class="s2">"jennifer@ATHENA.MIT.EDU"</span> <span class="n">created</span><span class="o">.</span>
<span class="n">kadmin</span><span class="p">:</span>
</pre></div>
</div>
</div>
<div class="section" id="modify-principal">
<span id="add-principal-end"></span><span id="id2"></span><h3>modify_principal<a class="headerlink" href="#modify-principal" title="Permalink to this headline">¶</a></h3>
<blockquote>
<div><strong>modify_principal</strong> [<em>options</em>] <em>principal</em></div></blockquote>
<p>Modifies the specified principal, changing the fields as specified.
The options to <strong>add_principal</strong> also apply to this command, except
for the <strong>-randkey</strong>, <strong>-pw</strong>, and <strong>-e</strong> options. In addition, the
option <strong>-clearpolicy</strong> will clear the current policy of a principal.</p>
<p>This command requires the <em>modify</em> privilege.</p>
<p>Alias: <strong>modprinc</strong></p>
<p>Options (in addition to the <strong>addprinc</strong> options):</p>
<dl class="docutils">
<dt><strong>-unlock</strong></dt>
<dd>Unlocks a locked principal (one which has received too many failed
authentication attempts without enough time between them according
to its password policy) so that it can successfully authenticate.</dd>
</dl>
</div>
<div class="section" id="rename-principal">
<span id="modify-principal-end"></span><span id="id3"></span><h3>rename_principal<a class="headerlink" href="#rename-principal" title="Permalink to this headline">¶</a></h3>
<blockquote>
<div><strong>rename_principal</strong> [<strong>-force</strong>] <em>old_principal</em> <em>new_principal</em></div></blockquote>
<p>Renames the specified <em>old_principal</em> to <em>new_principal</em>. This
command prompts for confirmation, unless the <strong>-force</strong> option is
given.</p>
<p>This command requires the <strong>add</strong> and <strong>delete</strong> privileges.</p>
<p>Alias: <strong>renprinc</strong></p>
</div>
<div class="section" id="delete-principal">
<span id="rename-principal-end"></span><span id="id4"></span><h3>delete_principal<a class="headerlink" href="#delete-principal" title="Permalink to this headline">¶</a></h3>
<blockquote>
<div><strong>delete_principal</strong> [<strong>-force</strong>] <em>principal</em></div></blockquote>
<p>Deletes the specified <em>principal</em> from the database. This command
prompts for deletion, unless the <strong>-force</strong> option is given.</p>
<p>This command requires the <strong>delete</strong> privilege.</p>
<p>Alias: <strong>delprinc</strong></p>
</div>
<div class="section" id="change-password">
<span id="delete-principal-end"></span><span id="id5"></span><h3>change_password<a class="headerlink" href="#change-password" title="Permalink to this headline">¶</a></h3>
<blockquote>
<div><strong>change_password</strong> [<em>options</em>] <em>principal</em></div></blockquote>
<p>Changes the password of <em>principal</em>. Prompts for a new password if
neither <strong>-randkey</strong> or <strong>-pw</strong> is specified.</p>
<p>This command requires the <strong>changepw</strong> privilege, or that the
principal running the program is the same as the principal being
changed.</p>
<p>Alias: <strong>cpw</strong></p>
<p>The following options are available:</p>
<dl class="docutils">
<dt><strong>-randkey</strong></dt>
<dd>Sets the key of the principal to a random value.</dd>
<dt><strong>-pw</strong> <em>password</em></dt>
<dd>Set the password to the specified string. Using this option in a
script may expose the password to other users on the system via
the process list.</dd>
<dt><strong>-e</strong> <em>enc</em>:<em>salt</em>,…</dt>
<dd>Uses the specified keysalt list for setting the keys of the
principal. See <a class="reference internal" href="../conf_files/kdc_conf.html#keysalt-lists"><span class="std std-ref">Keysalt lists</span></a> in <a class="reference internal" href="../conf_files/kdc_conf.html#kdc-conf-5"><span class="std std-ref">kdc.conf</span></a> for a
list of possible values.</dd>
<dt><strong>-keepold</strong></dt>
<dd>Keeps the existing keys in the database. This flag is usually not
necessary except perhaps for <code class="docutils literal notranslate"><span class="pre">krbtgt</span></code> principals.</dd>
</dl>
<p>Example:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">kadmin</span><span class="p">:</span> <span class="n">cpw</span> <span class="n">systest</span>
<span class="n">Enter</span> <span class="n">password</span> <span class="k">for</span> <span class="n">principal</span> <span class="n">systest</span><span class="nd">@BLEEP</span><span class="o">.</span><span class="n">COM</span><span class="p">:</span>
<span class="n">Re</span><span class="o">-</span><span class="n">enter</span> <span class="n">password</span> <span class="k">for</span> <span class="n">principal</span> <span class="n">systest</span><span class="nd">@BLEEP</span><span class="o">.</span><span class="n">COM</span><span class="p">:</span>
<span class="n">Password</span> <span class="k">for</span> <span class="n">systest</span><span class="nd">@BLEEP</span><span class="o">.</span><span class="n">COM</span> <span class="n">changed</span><span class="o">.</span>
<span class="n">kadmin</span><span class="p">:</span>
</pre></div>
</div>
</div>
<div class="section" id="purgekeys">
<span id="change-password-end"></span><span id="id6"></span><h3>purgekeys<a class="headerlink" href="#purgekeys" title="Permalink to this headline">¶</a></h3>
<blockquote>
<div><strong>purgekeys</strong> [<strong>-all</strong>|<strong>-keepkvno</strong> <em>oldest_kvno_to_keep</em>] <em>principal</em></div></blockquote>
<p>Purges previously retained old keys (e.g., from <strong>change_password
-keepold</strong>) from <em>principal</em>. If <strong>-keepkvno</strong> is specified, then
only purges keys with kvnos lower than <em>oldest_kvno_to_keep</em>. If
<strong>-all</strong> is specified, then all keys are purged. The <strong>-all</strong> option
is new in release 1.12.</p>
<p>This command requires the <strong>modify</strong> privilege.</p>
</div>
<div class="section" id="get-principal">
<span id="purgekeys-end"></span><span id="id7"></span><h3>get_principal<a class="headerlink" href="#get-principal" title="Permalink to this headline">¶</a></h3>
<blockquote>
<div><strong>get_principal</strong> [<strong>-terse</strong>] <em>principal</em></div></blockquote>
<p>Gets the attributes of principal. With the <strong>-terse</strong> option, outputs
fields as quoted tab-separated strings.</p>
<p>This command requires the <strong>inquire</strong> privilege, or that the principal
running the the program to be the same as the one being listed.</p>
<p>Alias: <strong>getprinc</strong></p>
<p>Examples:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">kadmin</span><span class="p">:</span> <span class="n">getprinc</span> <span class="n">tlyu</span><span class="o">/</span><span class="n">admin</span>
<span class="n">Principal</span><span class="p">:</span> <span class="n">tlyu</span><span class="o">/</span><span class="n">admin</span><span class="nd">@BLEEP</span><span class="o">.</span><span class="n">COM</span>
<span class="n">Expiration</span> <span class="n">date</span><span class="p">:</span> <span class="p">[</span><span class="n">never</span><span class="p">]</span>
<span class="n">Last</span> <span class="n">password</span> <span class="n">change</span><span class="p">:</span> <span class="n">Mon</span> <span class="n">Aug</span> <span class="mi">12</span> <span class="mi">14</span><span class="p">:</span><span class="mi">16</span><span class="p">:</span><span class="mi">47</span> <span class="n">EDT</span> <span class="mi">1996</span>
<span class="n">Password</span> <span class="n">expiration</span> <span class="n">date</span><span class="p">:</span> <span class="p">[</span><span class="n">none</span><span class="p">]</span>
<span class="n">Maximum</span> <span class="n">ticket</span> <span class="n">life</span><span class="p">:</span> <span class="mi">0</span> <span class="n">days</span> <span class="mi">10</span><span class="p">:</span><span class="mi">00</span><span class="p">:</span><span class="mi">00</span>
<span class="n">Maximum</span> <span class="n">renewable</span> <span class="n">life</span><span class="p">:</span> <span class="mi">7</span> <span class="n">days</span> <span class="mi">00</span><span class="p">:</span><span class="mi">00</span><span class="p">:</span><span class="mi">00</span>
<span class="n">Last</span> <span class="n">modified</span><span class="p">:</span> <span class="n">Mon</span> <span class="n">Aug</span> <span class="mi">12</span> <span class="mi">14</span><span class="p">:</span><span class="mi">16</span><span class="p">:</span><span class="mi">47</span> <span class="n">EDT</span> <span class="mi">1996</span> <span class="p">(</span><span class="n">bjaspan</span><span class="o">/</span><span class="n">admin</span><span class="nd">@BLEEP</span><span class="o">.</span><span class="n">COM</span><span class="p">)</span>
<span class="n">Last</span> <span class="n">successful</span> <span class="n">authentication</span><span class="p">:</span> <span class="p">[</span><span class="n">never</span><span class="p">]</span>
<span class="n">Last</span> <span class="n">failed</span> <span class="n">authentication</span><span class="p">:</span> <span class="p">[</span><span class="n">never</span><span class="p">]</span>
<span class="n">Failed</span> <span class="n">password</span> <span class="n">attempts</span><span class="p">:</span> <span class="mi">0</span>
<span class="n">Number</span> <span class="n">of</span> <span class="n">keys</span><span class="p">:</span> <span class="mi">2</span>
<span class="n">Key</span><span class="p">:</span> <span class="n">vno</span> <span class="mi">1</span><span class="p">,</span> <span class="n">des</span><span class="o">-</span><span class="n">cbc</span><span class="o">-</span><span class="n">crc</span>
<span class="n">Key</span><span class="p">:</span> <span class="n">vno</span> <span class="mi">1</span><span class="p">,</span> <span class="n">des</span><span class="o">-</span><span class="n">cbc</span><span class="o">-</span><span class="n">crc</span><span class="p">:</span><span class="n">v4</span>
<span class="n">Attributes</span><span class="p">:</span>
<span class="n">Policy</span><span class="p">:</span> <span class="p">[</span><span class="n">none</span><span class="p">]</span>
<span class="n">kadmin</span><span class="p">:</span> <span class="n">getprinc</span> <span class="o">-</span><span class="n">terse</span> <span class="n">systest</span>
<span class="n">systest</span><span class="nd">@BLEEP</span><span class="o">.</span><span class="n">COM</span> <span class="mi">3</span> <span class="mi">86400</span> <span class="mi">604800</span> <span class="mi">1</span>
<span class="mi">785926535</span> <span class="mi">753241234</span> <span class="mi">785900000</span>
<span class="n">tlyu</span><span class="o">/</span><span class="n">admin</span><span class="nd">@BLEEP</span><span class="o">.</span><span class="n">COM</span> <span class="mi">786100034</span> <span class="mi">0</span> <span class="mi">0</span>
<span class="n">kadmin</span><span class="p">:</span>
</pre></div>
</div>
</div>
<div class="section" id="list-principals">
<span id="get-principal-end"></span><span id="id8"></span><h3>list_principals<a class="headerlink" href="#list-principals" title="Permalink to this headline">¶</a></h3>
<blockquote>
<div><strong>list_principals</strong> [<em>expression</em>]</div></blockquote>
<p>Retrieves all or some principal names. <em>expression</em> is a shell-style
glob expression that can contain the wild-card characters <code class="docutils literal notranslate"><span class="pre">?</span></code>,
<code class="docutils literal notranslate"><span class="pre">*</span></code>, and <code class="docutils literal notranslate"><span class="pre">[]</span></code>. All principal names matching the expression are
printed. If no expression is provided, all principal names are
printed. If the expression does not contain an <code class="docutils literal notranslate"><span class="pre">@</span></code> character, an
<code class="docutils literal notranslate"><span class="pre">@</span></code> character followed by the local realm is appended to the
expression.</p>
<p>This command requires the <strong>list</strong> privilege.</p>
<p>Alias: <strong>listprincs</strong>, <strong>get_principals</strong>, <strong>get_princs</strong></p>
<p>Example:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">kadmin</span><span class="p">:</span> <span class="n">listprincs</span> <span class="n">test</span><span class="o">*</span>
<span class="n">test3</span><span class="nd">@SECURE</span><span class="o">-</span><span class="n">TEST</span><span class="o">.</span><span class="n">OV</span><span class="o">.</span><span class="n">COM</span>
<span class="n">test2</span><span class="nd">@SECURE</span><span class="o">-</span><span class="n">TEST</span><span class="o">.</span><span class="n">OV</span><span class="o">.</span><span class="n">COM</span>
<span class="n">test1</span><span class="nd">@SECURE</span><span class="o">-</span><span class="n">TEST</span><span class="o">.</span><span class="n">OV</span><span class="o">.</span><span class="n">COM</span>
<span class="n">testuser</span><span class="nd">@SECURE</span><span class="o">-</span><span class="n">TEST</span><span class="o">.</span><span class="n">OV</span><span class="o">.</span><span class="n">COM</span>
<span class="n">kadmin</span><span class="p">:</span>
</pre></div>
</div>
</div>
<div class="section" id="get-strings">
<span id="list-principals-end"></span><span id="id9"></span><h3>get_strings<a class="headerlink" href="#get-strings" title="Permalink to this headline">¶</a></h3>
<blockquote>
<div><strong>get_strings</strong> <em>principal</em></div></blockquote>
<p>Displays string attributes on <em>principal</em>.</p>
<p>This command requires the <strong>inquire</strong> privilege.</p>
<p>Alias: <strong>getstr</strong></p>
</div>
<div class="section" id="set-string">
<span id="get-strings-end"></span><span id="id10"></span><h3>set_string<a class="headerlink" href="#set-string" title="Permalink to this headline">¶</a></h3>
<blockquote>
<div><strong>set_string</strong> <em>principal</em> <em>name</em> <em>value</em></div></blockquote>
<p>Sets a string attribute on <em>principal</em>. String attributes are used to
supply per-principal configuration to the KDC and some KDC plugin
modules. The following string attribute names are recognized by the
KDC:</p>
<dl class="docutils">
<dt><strong>require_auth</strong></dt>
<dd>Specifies an authentication indicator which is required to
authenticate to the principal as a service. Multiple indicators
can be specified, separated by spaces; in this case any of the
specified indicators will be accepted. (New in release 1.14.)</dd>
<dt><strong>session_enctypes</strong></dt>
<dd>Specifies the encryption types supported for session keys when the
principal is authenticated to as a server. See
<a class="reference internal" href="../conf_files/kdc_conf.html#encryption-types"><span class="std std-ref">Encryption types</span></a> in <a class="reference internal" href="../conf_files/kdc_conf.html#kdc-conf-5"><span class="std std-ref">kdc.conf</span></a> for a list of the
accepted values.</dd>
<dt><strong>otp</strong></dt>
<dd>Enables One Time Passwords (OTP) preauthentication for a client
<em>principal</em>. The <em>value</em> is a JSON string representing an array
of objects, each having optional <code class="docutils literal notranslate"><span class="pre">type</span></code> and <code class="docutils literal notranslate"><span class="pre">username</span></code> fields.</dd>
<dt><strong>pkinit_cert_match</strong></dt>
<dd>Specifies a matching expression that defines the certificate
attributes required for the client certificate used by the
principal during PKINIT authentication. The matching expression
is in the same format as those used by the <strong>pkinit_cert_match</strong>
option in <a class="reference internal" href="../conf_files/krb5_conf.html#krb5-conf-5"><span class="std std-ref">krb5.conf</span></a>. (New in release 1.16.)</dd>
</dl>
<p>This command requires the <strong>modify</strong> privilege.</p>
<p>Alias: <strong>setstr</strong></p>
<p>Example:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">set_string</span> <span class="n">host</span><span class="o">/</span><span class="n">foo</span><span class="o">.</span><span class="n">mit</span><span class="o">.</span><span class="n">edu</span> <span class="n">session_enctypes</span> <span class="n">aes128</span><span class="o">-</span><span class="n">cts</span>
<span class="n">set_string</span> <span class="n">user</span><span class="nd">@FOO</span><span class="o">.</span><span class="n">COM</span> <span class="n">otp</span> <span class="s2">"[{""type"":""hotp"",""username"":""al""}]"</span>
</pre></div>
</div>
</div>
<div class="section" id="del-string">
<span id="set-string-end"></span><span id="id11"></span><h3>del_string<a class="headerlink" href="#del-string" title="Permalink to this headline">¶</a></h3>
<blockquote>
<div><strong>del_string</strong> <em>principal</em> <em>key</em></div></blockquote>
<p>Deletes a string attribute from <em>principal</em>.</p>
<p>This command requires the <strong>delete</strong> privilege.</p>
<p>Alias: <strong>delstr</strong></p>
</div>
<div class="section" id="add-policy">
<span id="del-string-end"></span><span id="id12"></span><h3>add_policy<a class="headerlink" href="#add-policy" title="Permalink to this headline">¶</a></h3>
<blockquote>
<div><strong>add_policy</strong> [<em>options</em>] <em>policy</em></div></blockquote>
<p>Adds a password policy named <em>policy</em> to the database.</p>
<p>This command requires the <strong>add</strong> privilege.</p>
<p>Alias: <strong>addpol</strong></p>
<p>The following options are available:</p>
<dl class="docutils">
<dt><strong>-maxlife</strong> <em>time</em></dt>
<dd>(<a class="reference internal" href="../../basic/date_format.html#duration"><span class="std std-ref">Time duration</span></a> or <a class="reference internal" href="../../basic/date_format.html#getdate"><span class="std std-ref">getdate time</span></a> string) Sets the maximum
lifetime of a password.</dd>
<dt><strong>-minlife</strong> <em>time</em></dt>
<dd>(<a class="reference internal" href="../../basic/date_format.html#duration"><span class="std std-ref">Time duration</span></a> or <a class="reference internal" href="../../basic/date_format.html#getdate"><span class="std std-ref">getdate time</span></a> string) Sets the minimum
lifetime of a password.</dd>
<dt><strong>-minlength</strong> <em>length</em></dt>
<dd>Sets the minimum length of a password.</dd>
<dt><strong>-minclasses</strong> <em>number</em></dt>
<dd>Sets the minimum number of character classes required in a
password. The five character classes are lower case, upper case,
numbers, punctuation, and whitespace/unprintable characters.</dd>
<dt><strong>-history</strong> <em>number</em></dt>
<dd>Sets the number of past keys kept for a principal. This option is
not supported with the LDAP KDC database module.</dd>
</dl>
<dl class="docutils" id="policy-maxfailure">
<dt><strong>-maxfailure</strong> <em>maxnumber</em></dt>
<dd>Sets the number of authentication failures before the principal is
locked. Authentication failures are only tracked for principals
which require preauthentication. The counter of failed attempts
resets to 0 after a successful attempt to authenticate. A
<em>maxnumber</em> value of 0 (the default) disables lockout.</dd>
</dl>
<dl class="docutils" id="policy-failurecountinterval">
<dt><strong>-failurecountinterval</strong> <em>failuretime</em></dt>
<dd>(<a class="reference internal" href="../../basic/date_format.html#duration"><span class="std std-ref">Time duration</span></a> or <a class="reference internal" href="../../basic/date_format.html#getdate"><span class="std std-ref">getdate time</span></a> string) Sets the allowable time
between authentication failures. If an authentication failure
happens after <em>failuretime</em> has elapsed since the previous
failure, the number of authentication failures is reset to 1. A
<em>failuretime</em> value of 0 (the default) means forever.</dd>
</dl>
<dl class="docutils" id="policy-lockoutduration">
<dt><strong>-lockoutduration</strong> <em>lockouttime</em></dt>
<dd>(<a class="reference internal" href="../../basic/date_format.html#duration"><span class="std std-ref">Time duration</span></a> or <a class="reference internal" href="../../basic/date_format.html#getdate"><span class="std std-ref">getdate time</span></a> string) Sets the duration for
which the principal is locked from authenticating if too many
authentication failures occur without the specified failure count
interval elapsing. A duration of 0 (the default) means the
principal remains locked out until it is administratively unlocked
with <code class="docutils literal notranslate"><span class="pre">modprinc</span> <span class="pre">-unlock</span></code>.</dd>
<dt><strong>-allowedkeysalts</strong></dt>
<dd>Specifies the key/salt tuples supported for long-term keys when
setting or changing a principal’s password/keys. See
<a class="reference internal" href="../conf_files/kdc_conf.html#keysalt-lists"><span class="std std-ref">Keysalt lists</span></a> in <a class="reference internal" href="../conf_files/kdc_conf.html#kdc-conf-5"><span class="std std-ref">kdc.conf</span></a> for a list of the
accepted values, but note that key/salt tuples must be separated
with commas (‘,’) only. To clear the allowed key/salt policy use
a value of ‘-‘.</dd>
</dl>
<p>Example:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">kadmin</span><span class="p">:</span> <span class="n">add_policy</span> <span class="o">-</span><span class="n">maxlife</span> <span class="s2">"2 days"</span> <span class="o">-</span><span class="n">minlength</span> <span class="mi">5</span> <span class="n">guests</span>
<span class="n">kadmin</span><span class="p">:</span>
</pre></div>
</div>
</div>
<div class="section" id="modify-policy">
<span id="add-policy-end"></span><span id="id13"></span><h3>modify_policy<a class="headerlink" href="#modify-policy" title="Permalink to this headline">¶</a></h3>
<blockquote>
<div><strong>modify_policy</strong> [<em>options</em>] <em>policy</em></div></blockquote>
<p>Modifies the password policy named <em>policy</em>. Options are as described
for <strong>add_policy</strong>.</p>
<p>This command requires the <strong>modify</strong> privilege.</p>
<p>Alias: <strong>modpol</strong></p>
</div>
<div class="section" id="delete-policy">
<span id="modify-policy-end"></span><span id="id14"></span><h3>delete_policy<a class="headerlink" href="#delete-policy" title="Permalink to this headline">¶</a></h3>
<blockquote>
<div><strong>delete_policy</strong> [<strong>-force</strong>] <em>policy</em></div></blockquote>
<p>Deletes the password policy named <em>policy</em>. Prompts for confirmation
before deletion. The command will fail if the policy is in use by any
principals.</p>
<p>This command requires the <strong>delete</strong> privilege.</p>
<p>Alias: <strong>delpol</strong></p>
<p>Example:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span>kadmin: del_policy guests
Are you sure you want to delete the policy "guests"?
(yes/no): yes
kadmin:
</pre></div>
</div>
</div>
<div class="section" id="get-policy">
<span id="delete-policy-end"></span><span id="id15"></span><h3>get_policy<a class="headerlink" href="#get-policy" title="Permalink to this headline">¶</a></h3>
<blockquote>
<div><strong>get_policy</strong> [ <strong>-terse</strong> ] <em>policy</em></div></blockquote>
<p>Displays the values of the password policy named <em>policy</em>. With the
<strong>-terse</strong> flag, outputs the fields as quoted strings separated by
tabs.</p>
<p>This command requires the <strong>inquire</strong> privilege.</p>
<p>Alias: getpol</p>
<p>Examples:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">kadmin</span><span class="p">:</span> <span class="n">get_policy</span> <span class="n">admin</span>
<span class="n">Policy</span><span class="p">:</span> <span class="n">admin</span>
<span class="n">Maximum</span> <span class="n">password</span> <span class="n">life</span><span class="p">:</span> <span class="mi">180</span> <span class="n">days</span> <span class="mi">00</span><span class="p">:</span><span class="mi">00</span><span class="p">:</span><span class="mi">00</span>
<span class="n">Minimum</span> <span class="n">password</span> <span class="n">life</span><span class="p">:</span> <span class="mi">00</span><span class="p">:</span><span class="mi">00</span><span class="p">:</span><span class="mi">00</span>
<span class="n">Minimum</span> <span class="n">password</span> <span class="n">length</span><span class="p">:</span> <span class="mi">6</span>
<span class="n">Minimum</span> <span class="n">number</span> <span class="n">of</span> <span class="n">password</span> <span class="n">character</span> <span class="n">classes</span><span class="p">:</span> <span class="mi">2</span>
<span class="n">Number</span> <span class="n">of</span> <span class="n">old</span> <span class="n">keys</span> <span class="n">kept</span><span class="p">:</span> <span class="mi">5</span>
<span class="n">Reference</span> <span class="n">count</span><span class="p">:</span> <span class="mi">17</span>
<span class="n">kadmin</span><span class="p">:</span> <span class="n">get_policy</span> <span class="o">-</span><span class="n">terse</span> <span class="n">admin</span>
<span class="n">admin</span> <span class="mi">15552000</span> <span class="mi">0</span> <span class="mi">6</span> <span class="mi">2</span> <span class="mi">5</span> <span class="mi">17</span>
<span class="n">kadmin</span><span class="p">:</span>
</pre></div>
</div>
<p>The “Reference count” is the number of principals using that policy.
With the LDAP KDC database module, the reference count field is not
meaningful.</p>
</div>
<div class="section" id="list-policies">
<span id="get-policy-end"></span><span id="id16"></span><h3>list_policies<a class="headerlink" href="#list-policies" title="Permalink to this headline">¶</a></h3>
<blockquote>
<div><strong>list_policies</strong> [<em>expression</em>]</div></blockquote>
<p>Retrieves all or some policy names. <em>expression</em> is a shell-style
glob expression that can contain the wild-card characters <code class="docutils literal notranslate"><span class="pre">?</span></code>,
<code class="docutils literal notranslate"><span class="pre">*</span></code>, and <code class="docutils literal notranslate"><span class="pre">[]</span></code>. All policy names matching the expression are
printed. If no expression is provided, all existing policy names are
printed.</p>
<p>This command requires the <strong>list</strong> privilege.</p>
<p>Aliases: <strong>listpols</strong>, <strong>get_policies</strong>, <strong>getpols</strong>.</p>
<p>Examples:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">kadmin</span><span class="p">:</span> <span class="n">listpols</span>
<span class="n">test</span><span class="o">-</span><span class="n">pol</span>
<span class="nb">dict</span><span class="o">-</span><span class="n">only</span>
<span class="n">once</span><span class="o">-</span><span class="n">a</span><span class="o">-</span><span class="nb">min</span>
<span class="n">test</span><span class="o">-</span><span class="n">pol</span><span class="o">-</span><span class="n">nopw</span>
<span class="n">kadmin</span><span class="p">:</span> <span class="n">listpols</span> <span class="n">t</span><span class="o">*</span>
<span class="n">test</span><span class="o">-</span><span class="n">pol</span>
<span class="n">test</span><span class="o">-</span><span class="n">pol</span><span class="o">-</span><span class="n">nopw</span>
<span class="n">kadmin</span><span class="p">:</span>
</pre></div>
</div>
</div>
<div class="section" id="ktadd">
<span id="list-policies-end"></span><span id="id17"></span><h3>ktadd<a class="headerlink" href="#ktadd" title="Permalink to this headline">¶</a></h3>
<blockquote>
<div><div class="line-block">
<div class="line"><strong>ktadd</strong> [options] <em>principal</em></div>
<div class="line"><strong>ktadd</strong> [options] <strong>-glob</strong> <em>princ-exp</em></div>
</div>
</div></blockquote>
<p>Adds a <em>principal</em>, or all principals matching <em>princ-exp</em>, to a
keytab file. Each principal’s keys are randomized in the process.
The rules for <em>princ-exp</em> are described in the <strong>list_principals</strong>
command.</p>
<p>This command requires the <strong>inquire</strong> and <strong>changepw</strong> privileges.
With the <strong>-glob</strong> form, it also requires the <strong>list</strong> privilege.</p>
<p>The options are:</p>
<dl class="docutils">
<dt><strong>-k[eytab]</strong> <em>keytab</em></dt>
<dd>Use <em>keytab</em> as the keytab file. Otherwise, the default keytab is
used.</dd>
<dt><strong>-e</strong> <em>enc</em>:<em>salt</em>,…</dt>
<dd>Uses the specified keysalt list for setting the new keys of the
principal. See <a class="reference internal" href="../conf_files/kdc_conf.html#keysalt-lists"><span class="std std-ref">Keysalt lists</span></a> in <a class="reference internal" href="../conf_files/kdc_conf.html#kdc-conf-5"><span class="std std-ref">kdc.conf</span></a> for a
list of possible values.</dd>
<dt><strong>-q</strong></dt>
<dd>Display less verbose information.</dd>
<dt><strong>-norandkey</strong></dt>
<dd>Do not randomize the keys. The keys and their version numbers stay
unchanged. This option cannot be specified in combination with the
<strong>-e</strong> option.</dd>
</dl>
<p>An entry for each of the principal’s unique encryption types is added,
ignoring multiple keys with the same encryption type but different
salt types.</p>
<p>Example:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">kadmin</span><span class="p">:</span> <span class="n">ktadd</span> <span class="o">-</span><span class="n">k</span> <span class="o">/</span><span class="n">tmp</span><span class="o">/</span><span class="n">foo</span><span class="o">-</span><span class="n">new</span><span class="o">-</span><span class="n">keytab</span> <span class="n">host</span><span class="o">/</span><span class="n">foo</span><span class="o">.</span><span class="n">mit</span><span class="o">.</span><span class="n">edu</span>
<span class="n">Entry</span> <span class="k">for</span> <span class="n">principal</span> <span class="n">host</span><span class="o">/</span><span class="n">foo</span><span class="o">.</span><span class="n">mit</span><span class="o">.</span><span class="n">edu</span><span class="nd">@ATHENA</span><span class="o">.</span><span class="n">MIT</span><span class="o">.</span><span class="n">EDU</span> <span class="k">with</span> <span class="n">kvno</span> <span class="mi">3</span><span class="p">,</span>
<span class="n">encryption</span> <span class="nb">type</span> <span class="n">aes256</span><span class="o">-</span><span class="n">cts</span><span class="o">-</span><span class="n">hmac</span><span class="o">-</span><span class="n">sha1</span><span class="o">-</span><span class="mi">96</span> <span class="n">added</span> <span class="n">to</span> <span class="n">keytab</span>
<span class="n">FILE</span><span class="p">:</span><span class="o">/</span><span class="n">tmp</span><span class="o">/</span><span class="n">foo</span><span class="o">-</span><span class="n">new</span><span class="o">-</span><span class="n">keytab</span>
<span class="n">kadmin</span><span class="p">:</span>
</pre></div>
</div>
</div>
<div class="section" id="ktremove">
<span id="ktadd-end"></span><span id="id18"></span><h3>ktremove<a class="headerlink" href="#ktremove" title="Permalink to this headline">¶</a></h3>
<blockquote>
<div><strong>ktremove</strong> [options] <em>principal</em> [<em>kvno</em> | <em>all</em> | <em>old</em>]</div></blockquote>
<p>Removes entries for the specified <em>principal</em> from a keytab. Requires
no permissions, since this does not require database access.</p>
<p>If the string “all” is specified, all entries for that principal are
removed; if the string “old” is specified, all entries for that
principal except those with the highest kvno are removed. Otherwise,
the value specified is parsed as an integer, and all entries whose
kvno match that integer are removed.</p>
<p>The options are:</p>
<dl class="docutils">
<dt><strong>-k[eytab]</strong> <em>keytab</em></dt>
<dd>Use <em>keytab</em> as the keytab file. Otherwise, the default keytab is
used.</dd>
<dt><strong>-q</strong></dt>
<dd>Display less verbose information.</dd>
</dl>
<p>Example:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">kadmin</span><span class="p">:</span> <span class="n">ktremove</span> <span class="n">kadmin</span><span class="o">/</span><span class="n">admin</span> <span class="nb">all</span>
<span class="n">Entry</span> <span class="k">for</span> <span class="n">principal</span> <span class="n">kadmin</span><span class="o">/</span><span class="n">admin</span> <span class="k">with</span> <span class="n">kvno</span> <span class="mi">3</span> <span class="n">removed</span> <span class="kn">from</span> <span class="nn">keytab</span>
<span class="n">FILE</span><span class="p">:</span><span class="o">/</span><span class="n">etc</span><span class="o">/</span><span class="n">krb5</span><span class="o">.</span><span class="n">keytab</span>
<span class="n">kadmin</span><span class="p">:</span>
</pre></div>
</div>
</div>
<div class="section" id="lock">
<span id="ktremove-end"></span><h3>lock<a class="headerlink" href="#lock" title="Permalink to this headline">¶</a></h3>
<p>Lock database exclusively. Use with extreme caution! This command
only works with the DB2 KDC database module.</p>
</div>
<div class="section" id="unlock">
<h3>unlock<a class="headerlink" href="#unlock" title="Permalink to this headline">¶</a></h3>
<p>Release the exclusive database lock.</p>
</div>
<div class="section" id="list-requests">
<h3>list_requests<a class="headerlink" href="#list-requests" title="Permalink to this headline">¶</a></h3>
<p>Lists available for kadmin requests.</p>
<p>Aliases: <strong>lr</strong>, <strong>?</strong></p>
</div>
<div class="section" id="quit">
<h3>quit<a class="headerlink" href="#quit" title="Permalink to this headline">¶</a></h3>
<p>Exit program. If the database was locked, the lock is released.</p>
<p>Aliases: <strong>exit</strong>, <strong>q</strong></p>
</div>
</div>
<div class="section" id="history">
<h2>HISTORY<a class="headerlink" href="#history" title="Permalink to this headline">¶</a></h2>
<p>The kadmin program was originally written by Tom Yu at MIT, as an
interface to the OpenVision Kerberos administration program.</p>
</div>
<div class="section" id="environment">
<h2>ENVIRONMENT<a class="headerlink" href="#environment" title="Permalink to this headline">¶</a></h2>
<p>See <a class="reference internal" href="../../user/user_config/kerberos.html#kerberos-7"><span class="std std-ref">kerberos</span></a> for a description of Kerberos environment
variables.</p>
</div>
<div class="section" id="see-also">
<h2>SEE ALSO<a class="headerlink" href="#see-also" title="Permalink to this headline">¶</a></h2>
<p><a class="reference internal" href="../../user/user_commands/kpasswd.html#kpasswd-1"><span class="std std-ref">kpasswd</span></a>, <a class="reference internal" href="kadmind.html#kadmind-8"><span class="std std-ref">kadmind</span></a>, <a class="reference internal" href="../../user/user_config/kerberos.html#kerberos-7"><span class="std std-ref">kerberos</span></a></p>
</div>
</div>
</div>
</div>
</div>
</div>
<div class="sidebar">
<h2>On this page</h2>
<ul>
<li><a class="reference internal" href="#">kadmin</a><ul>
<li><a class="reference internal" href="#synopsis">SYNOPSIS</a></li>
<li><a class="reference internal" href="#description">DESCRIPTION</a></li>
<li><a class="reference internal" href="#options">OPTIONS</a></li>
<li><a class="reference internal" href="#database-options">DATABASE OPTIONS</a></li>
<li><a class="reference internal" href="#commands">COMMANDS</a><ul>
<li><a class="reference internal" href="#add-principal">add_principal</a></li>
<li><a class="reference internal" href="#modify-principal">modify_principal</a></li>
<li><a class="reference internal" href="#rename-principal">rename_principal</a></li>
<li><a class="reference internal" href="#delete-principal">delete_principal</a></li>
<li><a class="reference internal" href="#change-password">change_password</a></li>
<li><a class="reference internal" href="#purgekeys">purgekeys</a></li>
<li><a class="reference internal" href="#get-principal">get_principal</a></li>
<li><a class="reference internal" href="#list-principals">list_principals</a></li>
<li><a class="reference internal" href="#get-strings">get_strings</a></li>
<li><a class="reference internal" href="#set-string">set_string</a></li>
<li><a class="reference internal" href="#del-string">del_string</a></li>
<li><a class="reference internal" href="#add-policy">add_policy</a></li>
<li><a class="reference internal" href="#modify-policy">modify_policy</a></li>
<li><a class="reference internal" href="#delete-policy">delete_policy</a></li>
<li><a class="reference internal" href="#get-policy">get_policy</a></li>
<li><a class="reference internal" href="#list-policies">list_policies</a></li>
<li><a class="reference internal" href="#ktadd">ktadd</a></li>
<li><a class="reference internal" href="#ktremove">ktremove</a></li>
<li><a class="reference internal" href="#lock">lock</a></li>
<li><a class="reference internal" href="#unlock">unlock</a></li>
<li><a class="reference internal" href="#list-requests">list_requests</a></li>
<li><a class="reference internal" href="#quit">quit</a></li>
</ul>
</li>
<li><a class="reference internal" href="#history">HISTORY</a></li>
<li><a class="reference internal" href="#environment">ENVIRONMENT</a></li>
<li><a class="reference internal" href="#see-also">SEE ALSO</a></li>
</ul>
</li>
</ul>
<br/>
<h2>Table of contents</h2>
<ul class="current">
<li class="toctree-l1"><a class="reference internal" href="../../user/index.html">For users</a></li>
<li class="toctree-l1 current"><a class="reference internal" href="../index.html">For administrators</a><ul class="current">
<li class="toctree-l2"><a class="reference internal" href="../install.html">Installation guide</a></li>
<li class="toctree-l2"><a class="reference internal" href="../conf_files/index.html">Configuration Files</a></li>
<li class="toctree-l2"><a class="reference internal" href="../realm_config.html">Realm configuration decisions</a></li>
<li class="toctree-l2"><a class="reference internal" href="../database.html">Database administration</a></li>
<li class="toctree-l2"><a class="reference internal" href="../dbtypes.html">Database types</a></li>
<li class="toctree-l2"><a class="reference internal" href="../lockout.html">Account lockout</a></li>
<li class="toctree-l2"><a class="reference internal" href="../conf_ldap.html">Configuring Kerberos with OpenLDAP back-end</a></li>
<li class="toctree-l2"><a class="reference internal" href="../appl_servers.html">Application servers</a></li>
<li class="toctree-l2"><a class="reference internal" href="../host_config.html">Host configuration</a></li>
<li class="toctree-l2"><a class="reference internal" href="../backup_host.html">Backups of secure hosts</a></li>
<li class="toctree-l2"><a class="reference internal" href="../pkinit.html">PKINIT configuration</a></li>
<li class="toctree-l2"><a class="reference internal" href="../otp.html">OTP Preauthentication</a></li>
<li class="toctree-l2"><a class="reference internal" href="../spake.html">SPAKE Preauthentication</a></li>
<li class="toctree-l2"><a class="reference internal" href="../dictionary.html">Addressing dictionary attack risks</a></li>
<li class="toctree-l2"><a class="reference internal" href="../princ_dns.html">Principal names and DNS</a></li>
<li class="toctree-l2"><a class="reference internal" href="../enctypes.html">Encryption types</a></li>
<li class="toctree-l2"><a class="reference internal" href="../https.html">HTTPS proxy configuration</a></li>
<li class="toctree-l2"><a class="reference internal" href="../auth_indicator.html">Authentication indicators</a></li>
<li class="toctree-l2 current"><a class="reference internal" href="index.html">Administration programs</a><ul class="current">
<li class="toctree-l3 current"><a class="current reference internal" href="#">kadmin</a></li>
<li class="toctree-l3"><a class="reference internal" href="kadmind.html">kadmind</a></li>
<li class="toctree-l3"><a class="reference internal" href="kdb5_util.html">kdb5_util</a></li>
<li class="toctree-l3"><a class="reference internal" href="kdb5_ldap_util.html">kdb5_ldap_util</a></li>
<li class="toctree-l3"><a class="reference internal" href="krb5kdc.html">krb5kdc</a></li>
<li class="toctree-l3"><a class="reference internal" href="kprop.html">kprop</a></li>
<li class="toctree-l3"><a class="reference internal" href="kpropd.html">kpropd</a></li>
<li class="toctree-l3"><a class="reference internal" href="kproplog.html">kproplog</a></li>
<li class="toctree-l3"><a class="reference internal" href="ktutil.html">ktutil</a></li>
<li class="toctree-l3"><a class="reference internal" href="k5srvutil.html">k5srvutil</a></li>
<li class="toctree-l3"><a class="reference internal" href="sserver.html">sserver</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../../mitK5defaults.html">MIT Kerberos defaults</a></li>
<li class="toctree-l2"><a class="reference internal" href="../env_variables.html">Environment variables</a></li>
<li class="toctree-l2"><a class="reference internal" href="../troubleshoot.html">Troubleshooting</a></li>
<li class="toctree-l2"><a class="reference internal" href="../advanced/index.html">Advanced topics</a></li>
<li class="toctree-l2"><a class="reference internal" href="../various_envs.html">Various links</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="../../appdev/index.html">For application developers</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../plugindev/index.html">For plugin module developers</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../build/index.html">Building Kerberos V5</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../basic/index.html">Kerberos V5 concepts</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../formats/index.html">Protocols and file formats</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../mitK5features.html">MIT Kerberos features</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../build_this.html">How to build this documentation from the source</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../about.html">Contributing to the MIT Kerberos Documentation</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../resources.html">Resources</a></li>
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