How to configure Mainframe as a NTP server and HP-UX as clients

[yalin zhao]

I have configured one HP-UX machine as NTP server and a few HP-UX machines as clients successfully. But now I want to change to our Mainframe machine as the NTP server instead of HP machine. I do not know which file to be configured on Mainframe to server as a NTP server. Does anybody have ideas? Please recommend. Thanks in advance.

Yalin

[Pete Randall]

What kind of mainframe? What's the OS? Does it even have NTP software?

Pete

[John Bolene]

If the mainframe is a UNIX type, then it will have NTP available.

UNIX types can be Tandem, Compaq, HP, SUN, IBM-AIX.

Other types most likely do not have NTP available.

Let us know what you have and we can be more informative.

[Pete Randall]

Yalin,

I never messed with OS/390, we were a VM and VSE shop. I don't recall any NTP software in our environment but that was quite a few years ago. Do you have a Systems Programmer who handles the care and feeding of this monster? If so, he would be the one to ask about NTP software.

Pete

[yalin zhao]

Our mainframe machine is IBM O.S./390, version 2.9. The TCP/IP version is 2.8. I do not know if there is NTP software installed on it. How to check it? thanks.

Yalin

[Bill Thorsteinson]

Why do you want to make the mainframe the NTP server?
NTP should run on a server where it can run at near
real-time priority. Generally,
not something you want to
task a mainframe with.

However, you make a server a
server by pointing a client at
it. Your server should either have a reliable clock attached
and/or be servered by three or four reliable servers.
The line in you ntp configuration file should read
server yourserver.com
If you have restrict lines to
tighten security you need to use IP addresses.


To see if ntp is running on a server try using
ntpdate -d server.com
It will give you a bunch of diagnostics. Times are all
zero if the server is NOT running