NTP setup for linux

[djr111]

setting up a ntp server on linux.

i want server B to be able to connect to server A to adjust its time.

is there a easy process to do this?

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So far,

I have done:

/etc/ntp.conf on server A

# restrict mytrustedtimeserverip mask 255.255.255.255 nomodify notrap noquery

server 10.2.3.4 (added this)


driftfile /var/lib/ntp/drift

in file itself, I added " 0.0 "


on server B
====================
# restrict mytrustedtimeserverip mask 255.255.255.255 nomodify notrap noquery

server 10.2.3.4 (added this)

driftfile /var/lib/ntp/drift

in file itself, I added " 0.0 "


stop and restarted ntp.

using ntpq
>peers

I see my server, but does not seem to be using it, there is no "*"



I am probably in left field here, any help would be great.

 

[geirendre]

Can this be of any help:

http://linuxreviews.org/howtos/ntp/

or this:

http://www.tldp.org/HOWTO/TimePrecision-HOWTO/ntp.html

In /etc/ntp.conf on server A, you need the address of an external NTP-server, like : pool.ntp.org
and on server B, you need the IP-address of server A.

 

[djr111]

good docs...

is there a way to do this without using an external source to sync up to.

I know it may make it so the time is not EXACT, but I can live with that, my main concern is keeping server in sync with each other, but not leaving our protected barrier to achieve that.


thanks again.

 

[LawnBoy]

Not sure this works in linux, but on Netware and Windows if the primary cannot get time from external then it serves it's internal time to clients. So I've configured a "bad" IP for the primary to update from.

I've tried pointing the primary at itself but never got that to work.

 

[geirendre]

Just comment out that line in the ntp.conf file on Server-A.
It would then run in StandAlone-mode.