Htpdate ------- The HTTP Time Protocol (HTP) is used to synchronize a computer's time with web servers as reference time source. Htpdate will synchronize your computer's time by extracting timestamps from HTTP headers found in web server responses. Htpdate can be used as a daemon, to keep your computer synchronized. The accuracy of htpdate is at least -+0.5 seconds (better with multiple servers). If this is not good enough for you, try the ntpd package. Install the htpdate package if you need tools for keeping your system's time synchronized via the HTP protocol. Htpdate works also through proxy servers. Installation from source ------------------------ Tested on Linux and FreeBSD only, but should work for most Unix flavors. $ tar zxvf htpdate-x.y.z.tar.gz or $ tar jxvf htpdate-x.y.z.tar.bz2 $ cd htpdate-X.Y.Z $ make $ make install An example init script in /etc/init.d/ is included, but not installed automatically. This give the user the option to run htpdate as daemon or run it periodically from cron. Installation from RPM --------------------- The easiest way to install (Redhat, SuSE, Mandriva etc..) $ rpm -i htpdate-x.y.z.i386.rpm or when upgrading $ rpm -Uvh htpdate-x.y.z.i386.rpm By default the htpdate daemon is activated (with chkconfig). If you only want to run htpdate from cron, disable the htpdate service with 'chkconfig --del htpdate'. Usage ----- Usage: htpdate [-046adhlqstD] [-i pid file] [-m minpoll] [-M maxpoll] [-p precision] [-P <proxyserver>[:port]] <host[:port]> ... In general more web servers (multiple the same is allowed) will increase accuracy. See manpage for more details. To do ----- - I'm open for suggestions :) Eddy Vervest <eddy@cleVervest.com>