Time Server

[Alexey Fadyushin]

You can find the NTP documentation in the directory
/usr/share/doc/ntp-XXXXXX where XXXXXX is the version of ntpd.
The ntpd daemon may be used not only for syncronization of itself with
other NTP server(s) but also may be used as a time source for the
clients.

You can use the following configuration lines in your NTP configuration
file
(/etc/ntp.conf):

server <server name or IP address>

This line (which could be repeated as needed in the case of multiple NTP
time sources
for your server) tells the ntpd daemon to use the server named on this
line as a
time source for your NTP server.

For your clients which should get the time from your server
you could add the following string (which also could be repeated as
needed):

restrict <address of network where cliwnts reside> mask <netmask of
network with clients> notrust nomodify notrap noquery

This line allows your clients to request time from your server and
prohibiths other types
of NTP requests from them (e.g. clients can not be used as time sources
for
your server.

Alexey Fadyushin
Brainbench MVP for Linux
http://www.brainbench.com



Ryan Golhar wrote:
> 
> I haven't been able to find any documentation regarding time server in
> RedHat Linux.  I want to set up my server to act as a time server for
> other clients.  I have the ntp package installed, but it seems to only
> sync itself with another server.
> 
> Ideally, I would like my server (server A) to sync with another server
> (Main Server), and have clients then sync to server A.  Does anyone know
> how to do this?
> 
> Ryan
> 
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