Subject: HP-UX NTP client to as400 server

[janesmk]

Hello,
Im trying to sync time on HP-UX server to the AS400 server.
When starting daemon, I get the error message

ntpdate[1331]: no server suitable for synchronization found

I can ping the Server from Unix.
Anything special to configure for this ?

[Steven E. Protter]

Shalom,

telnet as400_hostname 123

See if you get a daemon to interact.

If you hang, are blocked by a firewall, the message is correct.

There is nothing special to configure at all on HP-UX to run ntpdate. I'm feeling the message is correct and ntp is not running on the as400 system.

SEP

[Matti_Kurkela]

NTP uses UDP, not TCP. So it cannot be tested by telnet.

MK

[Steven E. Protter]

Okay, thought I'd used that test.

Use nmap for HP-UX to test the as400 host.

Or a Linux box with nmap

nmap is a port probe tool.

Check port 123

SEP

[rick jones]

It will seem a silly question, but is there an ntp server running on your as400, and is it synced to a time source?

What do you get when you do:

ntpq

and then enter "peers" at the "ntpq>" prompt?

[Andy Bustamante]

As Rick points out, do you have NTP running on the Alphaserver? What operating system do you have on the Alphaserver Windows NT, Tru64, OpenVMS or Linux?

OpenVMS has several possible TCPIP stacks. Assuming the default HP TCPIP services, try:

TCPIP show service.

from the system account,
@sys$manager:TCPIP$CONFIG to create the appropriate template. Then edit SYS$SPECIFIC:[TCPIP$NTP]TCPIP$NTP.TEMPLATE and save as SYS$SPECIFIC:[TCPIP$NTP]TCPIP$NTP.CONF.

execute
@SYS$STARTUP:TCPIP$NTP_STARTUP.COM


Andy

[Steven Schweda]

> [...] on the Alphaserver [...]

My guess was that "as400" involved an IBM
AS/400 system, but, with enough ambiguity,
many things are possible.

[zkjian517]

i encountered the same problem, my rx4640 ntp clients can't sync to my rx4640 ntp server which uses its local system as the time source . i'm sure that the xntpd is running on my ntp server and the UDP port 123 is listening, and there is no firewall between them. i thought the distance between their time is too far to sync, so made their time very close, but the problem goes still.
the error info: ntpdate: no server suitable for synchronization found.