^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: Accepted (gssapi(-with-mic|-keyex)?|rsa|dsa|password|publickey|keyboard-interactive/pam|hostbased) for [^[:space:]]+ from [^[:space:]]+ port [[:digit:]]+( (ssh|ssh2))?$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: Address [._[:alnum:]-]+ maps to [._[:alnum:]-]+, but this does not map back to the address - POSSIBLE BREAK-?IN ATTEMPT!$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: Authorized to [^[:space:]]+, krb5 principal [^[:space:]]+ \(krb5_kuserok\)$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: Bad protocol version identification '[^']*' from ([:.[:xdigit:]]+|UNKNOWN)$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: Did not receive identification string from ([:[:xdigit:].]+|UNKNOWN)+$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: Disconnecting: Bad packet length [[:digit:]]+\.$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: Disconnecting: Corrupted MAC on input\.$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: Failed (keyboard-interactive/pam|password|none) for (i(llegal|nvalid) user )?[^[:space:]]+ from ([:.[:xdigit:]]+|UNKNOWN|[-_.[:alnum:]]+) port [[:digit:]]{1,5} ssh2?$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: I(llegal|nvalid) user [^[:space:]]+ from ([:.[:xdigit:]]+|UNKNOWN)$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: Nasty PTR record "[:[:xdigit:].]+" is set up for [:[:xdigit:].]+, ignoring$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: PAM pam_putenv: delete non-existent entry; [[:alnum:]]+$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: Postponed keyboard-interactive(/pam)? for [^[:space:]]+ from [^[:space:]]+ port [[:digit:]]+( (ssh|ssh2))?$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: Received disconnect from [:.[:xdigit:]]+: [12]: Timeout, server not responding\.$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: Received disconnect from [:.[:xdigit:]]+: 11: disconnected by user$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: Received disconnect from [:[:xdigit:].]+: [[:digit:]]+: Client disconnect$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: Received disconnect from [:[:xdigit:].]+: [[:digit:]]+: Disconnect requested by Windows SSH Client\.$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: Server listening on [:[:xdigit:].]+ port [[:digit:]]+\.$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: User [-_.[:alnum:]]+ from [-_.[:alnum:]]+ not allowed because (listed in Deny|not listed in Allow)Users$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: \(pam_[[:alnum:]]+\) session opened for user [^[:space:]]+( by ([[:alnum:]-]+)?\(uid=[[:digit:]]+\))?$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: \(pam_unix\) auth could not identify password for \[[-_.[:alnum:]]*\]$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: \(pam_unix\) check pass; user unknown$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: \(pam_unix\) bad username \[[^]]+\]$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: error: Could not get shadow information for NOUSER$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: error: PAM: Authentication failure for( illegal user)? [^[:space:]]+ from ([:.[:xdigit:]]+|UNKNOWN|[-_.[:alnum:]]+)$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: error: PAM: User not known to the underlying authentication module for i(llegal|nvalid) user [^[:space:]]+ from ([:.[:xdigit:]]+|UNKNOWN|[-_.[:alnum:]]+)$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: error: ssh_msg_send: write$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: fatal: Timeout before authentication for [:[:alnum:].]+$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: fatal: Write failed: (Connection (timed out|reset by peer)|Broken pipe)$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: fatal: recv_rexec_state: ssh_msg_recv failed$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: nss_ldap: reconnect(ing|ed) to LDAP server(\.\.\.| after [[:digit:]]+ attempt\(s\))$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: pam_[[:alnum:]]+\(sshd?:session\): session closed for user [^[:space:]]+$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: pam_[[:alnum:]]+\(sshd?:session\): session opened for user [^[:space:]]+( by ([[:alnum:]-]+)?\(uid=[[:digit:]]+\))?$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: pam_unix\(sshd?:[[:alnum:]]+\): check pass; user unknown$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: pam_unix\(sshd?:auth\): auth could not identify password for \[[-_.[:alnum:]]*\]$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: (\(pam_unix\)|pam_unix\(sshd?:auth\):) authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=[^[:space:]]+([[:space:]]+user=[^[:space:]]+)?$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: refused connect from [:[:alnum:]._-]+ \([:[:alnum:].]+\)$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: reverse mapping checking getaddrinfo for [._[:alnum:]-]+ (\[[:.[:xdigit:]]+\] )?failed - POSSIBLE BREAK-?IN ATTEMPT!$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: scanned from [:[:xdigit:].]+ with SSH-[.[:digit:]]+-SSH_Version_Mapper\. Don't panic\.$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: subsystem request for sftp$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: syslogin_perform_logout: logout\(\) returned an error$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: warning: /etc/hosts\.(allow|deny), line [[:digit:]]+: can't verify hostname: getaddrinfo\([._[:alnum:]-]+, AF_INET\) failed$ ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ sshd\[[[:digit:]]+\]: warning: /etc/hosts\.(allow|deny), line [[:digit:]]+: host name/(name|address) mismatch: [._[:alnum:]-]+ != [._[:alnum:]-]+$