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HOWTO Setup NTPD - Revision history
2026-04-12T14:47:19Z
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Mmmark at 23:27, 18 July 2006
2006-07-18T23:27:45Z
<p></p>
<p><b>New page</b></p><div>== Setup the ntpd.conf File ==<br />
Edit /etc/ntpd.conf (suse) or /etc/ntp.conf (gentoo) to look like this:<br />
<pre><br />
restrict default noquery notrust nomodify<br />
restrict 127.0.0.1<br />
restrict 209.87.56.0 mask 255.255.255.0<br />
restrict 209.87.57.30<br />
server 209.87.57.30<br />
restrict 142.58.103.1<br />
server 142.58.103.1<br />
driftfile /etc/ntp.drift<br />
logfile /var/log/ntp.log<br />
</pre><br />
<br />
== Installation ==<br />
'''Gentoo'''<br />
# emerge ntp -va<br />
# rc-update add ntpd default<br />
# /etc/init.d/ntpd start<br />
<br />
DO NOT<br />
rc-update add ntp-client default<br />
don't do it!!!??<br />
<br />
'''Suse'''<br />
# chkconfig xntpd on<br />
# /etc/init.d/xntpd start<br />
<br />
== For Firewall users ==<br />
Add the following rule to iptables:<br />
-A INPUT -i eth0 -m state --state RELATED,ESTABLISHED -j ACCEPT<br />
<br />
== Check everything is running properly ==<br />
# ntpdc<br />
Then type in 'peers' to see if the ntpd can contact the ntp server correctly, and then type 'quit' to exit.<br />
<br />
== Locked Down ntpd.conf ==<br />
If you are paranoid, use:<br />
<pre><br />
restrict default ignore<br />
restrict 127.0.0.1<br />
restrict 209.87.57.30<br />
server 209.87.57.30<br />
restrict 209.87.56.234<br />
server 209.87.56.234<br />
driftfile /etc/ntp.drift<br />
logfile /var/log/ntp.log<br />
</pre></div>
Mmmark