topic Re: configuring TCP/IP for one node from another node in Operating System - OpenVMS

configuring TCP/IP for one node from another node

Jess Goodman — Wed, 15 Apr 2009 15:41:27 GMT

Is there any trick that can be used to configure TCP/IP services for another node?

When you run @TCPIP$CONFIG or execute TCPIP SET CONFIG commands it creates or updates records in TCPIP$CONFIGURATION.DAT. Those records contain the node name of the current node.

I would like to be able to create or update the records for a node not currently booted. This would save me a step, since I now have to boot that node into the cluster without any applications or batch jobs that require TCP/IP running on it before I can (re)configure TCP/IP.

I also like to reboot a node after TCP/IP is (re)configured to be sure there is no problem with the configuration or its startup, so I now I have to boot a node twice to (re)configure it.

Re: configuring TCP/IP for one node from another node

Hoff — Wed, 15 Apr 2009 15:52:15 GMT

Not that I'd try this with a production box, but....

http://groups.google.com/group/comp.os.vms/browse_thread/thread/46d885717190a361

Re: configuring TCP/IP for one node from another node

Robert Gezelter — Wed, 15 Apr 2009 17:26:57 GMT

Jess,

I have to run out for a meeting, so I do not have time to root around for the precise qualifier, however:

My recollection is that there is an undocumented qualifier within TCPIP that will allow the information relating to a node other than the one that is presently running.

If my recollection is correct, this would be the way to do what is described. Modifying the files directly is probably a poor idea (and yes, I have been one of the people quietly lobbying for it to be supported).

Alternatively, one could insert a command file into the startup sequence at a phase prior to when SYSTARTUP_VMS.COM is invoked to issue the needed commands to configure TCPIP (at which point the TCPIP startup will work as advertised).

- Bob Gezelter, http://www.rlgsc.com

Re: configuring TCP/IP for one node from another node

Jess Goodman — Wed, 15 Apr 2009 19:25:23 GMT

Found it! The very useful but undocumented qualifier is /ON=node, which apparently works for all SHOW CONFIG and SET CONFIG commands.

$ TCPIP SHOW CONFIG INTERFACE /ON=ADAM
$ TCPIP SET CONFIG INTERFACE /ON=ADAM WE0 ...
$ TCPIP SHOW CONFIG ENABLE SERVICE /ON=BETA
$ TCPIP SET CONFIG ENABLE SERVICE FTP /ON=BETA

Thanks Robert!