Ntp server & client

[Luigi Berengan]

How to configure an hpux 11.00 server to be both ntp client and server ?

[Justo Exposito]

Hi,

You can use SAM go to the time.

Regards,

Justo.

[Pete Randall]

If it's a server, it doesn't need to be a client!


Pete

[Helen French]

These TKB documents describes the steps:

TKB# 1100390400:
http://www2.itrc.hp.com/service/cki/docDisplay.do?docLocale=en_US&docId=200000063201958

TKB# KBRC00000415:
http://www2.itrc.hp.com/service/cki/docDisplay.do?docLocale=en_US&docId=200000064722996

[Pete Randall]

Now that I think about it, you probably didn't mean that you wanted it to be a client of itself, did you?

Sorry!


Pete

[Camel_1]

The server should be either ntp broadcast or client. Edit /etc/ntp.conf, then start up the daemon /sbin/init.d/xntpd start

[Bill Thorsteinson]

Configure the ntp client on the system you
would like to be a server. Unless you secure
the interface to prevent other ntp clients
from talking to it your client is available
as a server to other clients.

If you want to make it a broadcast server, then
you need to define the broadcast parameters
in the ntp.conf file.

[PVR]

Since the system is configured as an NTP server, client configuration entries will not have any effect.

[Michael Steele_2]

HP-UX NTP Client
======
# cd /etc/rc.config.d
# /sbin/init.d/xntp stop
# vi netdaemons

export NTPDATE_SERVER=node name
export XNTPD=1

# ntpdate
# /sbin/init.d/xntp start

Wait for about 5-8 min, run the follwoing to check the status:
# ntpq -p
chk for output of "reftime" it should not be zero if the servers are in sync.

[Bill Hassell]

HP-UX is automatically a server when xntpd is running. But before you start, make sure your system can talk to the NTP servers you are going to use. Most firewalls deny access on port 123 so you must enable the port on your firewall. To test access, use ntpq (or xntpdc) with:

ntpq -p ntp-cup.external.hp.com

You should see a status report. If you see an error such as "Can't find host" (a DNS problem) or no response, you'll have to fix your networking. Once you get responses, you can edit /etc/ntp.conf, then enable xntpd as mentioned previously. Always use 4-6 different servers for reliability. A list of NTP servers is available from http://www.ntp.org/