ntp server in mcsg

[Hrvoje Dubravica]

Hi, is it possible to have ntp server in mcsg environment? I tried to do that, but problem is with clients. When I try ntpdate package_address I get message
"no server suitable for synchronization found"
but ntpdate node_name
works properly !

Any suggestion?

Thank you in advance.

Hrvoje

[melvyn burnard]

So far as I can tell, NTP is not know to work as a SG package, as it appears it does not bind or report back on hte floating ip address.

[Michael Steele_2 · Accepted solution]

I've used NTP in MC/SG. It's something else. Are you intranet or internet? Because port 123 for udp is usually close to the public by a firewall. Here's a procedure for intranet NTP server:

Check with:

ntpq -p

NTP Time server
===========
# cd /etc/
# /sbin/init.d/xntp stop
# vi ntp.conf
server 127.127.1.1 minpoll 3 maxpoll 4 prefer
fudge 127.127.1.1 stratum 10
broadcast ip

# /sbin/init.d/xntp start

############################################

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.

[Massimo Bianchi]

Hi,
what about the native possibility of ntp to search multiple hosts ?


You put your MCSG as peers, and client point to both .

We use this configuration in our environtment..


Politically correct example:

## Configured using SAM by root on Thu Sep 26 11:00:33 2002
# Sample XNTP Configurations File
#
# Use "peer", "server" and "broadcast " statements to specify various time
# server to be used and/or time services to be provided.
# Peer: The peer statement specifies that the given host is to be polled
# int "symmetric active" mode. The syntax is :
# peer addr [ key # ] [ version # ] [ minpoll interval_in_sec ] [ prefer ]
#
# peer 128.116.64.3 key 2001 version 2

#
# Server: The server statement causes polling to be done in client mode rather
# than symmetric active. It is an alternative to the peer command
# above. Which you use depends on what you want to achieve.
# The syntax is:
# server addr [ key # ] [ version # ] [ minpoll interval_in_sec ]
# [ prefer ]
#
peer other_sg_hosts version 3
server first_preferred_host version 3 prefer
server second_choiche_host version 3




HTH,
Massimo