topic Re: Rebooting using telnet from a VMS box in Operating System - OpenVMS

Rebooting using telnet from a VMS box

Sk Noorul Hassan — Tue, 30 May 2006 10:09:06 GMT

Hi,

Please find the steps require to reboot a server(with proprietary o/s)from a VMS server using Telnet attached herewith. Is it possible to simulate the steps on to a DCL script ?

Re: Rebooting using telnet from a VMS box

Ian Miller. — Tue, 30 May 2006 10:35:28 GMT

You may find the scripting capabilties of kermit are sufficent for this.

Re: Rebooting using telnet from a VMS box

Jan van den Ende — Tue, 30 May 2006 10:39:45 GMT

Hassan,

I do not know what is hidden behind that menu.

If is is a
$ @SYS$SYSTEM:SHUTDOWN
, then it will NOT work.

If, however, it is a
$ MCR SYSMAN SHUT NODE REBOOT
then it should work OK.

hth

Proost.

Have one on me.

jpe

Re: Rebooting using telnet from a VMS box

Sk Noorul Hassan — Tue, 30 May 2006 10:45:46 GMT

Jan/Ian,

The server which I want to reboot sitting on a VMS server using Telnet is not a VMS box. It is defined inside my VMS server in UCX database not in NCP. If u can please guide me.

Re: Rebooting using telnet from a VMS box

Volker Halle — Tue, 30 May 2006 11:24:43 GMT

Hi,

asking the same question again will probably get you the same answers:

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=982892

You cannot do 'scripting' with OpenVMS TELNET.

KERMIT is most likely the best tool to do this. Please have a look here:

http://www.columbia.edu/kermit/ck80.html

Volker.

Re: Rebooting using telnet from a VMS box

Robert Gezelter — Tue, 30 May 2006 15:43:32 GMT

Hassan,

I concur with the others. C-Kermit is more than likely the best tool for what you are trying to accomplish.

In its most simple use, it is functionally equivalent to TELNET. However, it is fully scriptable. The scripting capability is fully described in the published book about C-Kermit.

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

Re: Rebooting using telnet from a VMS box

Sebastian Bazley — Wed, 31 May 2006 06:05:55 GMT

The book (and Kermit) are very good, and Kermit is probably the easiest route to automating the process.

Alternatively, if you have any Perl skills in your organisation, it should be possible to use Perl to script the reboot.

Note that you can cannot generally redistribute Kermit - see the Columbia web-site for details:

http://www.columbia.edu/kermit/licensing.html

Re: Rebooting using telnet from a VMS box

Wim Van den Wyngaert — Wed, 31 May 2006 07:00:03 GMT

If the other box is a *nix you can try nohup.

Wim

Re: Rebooting using telnet from a VMS box

Wim Van den Wyngaert — Wed, 31 May 2006 07:10:12 GMT

Correct Jan's statement to :
mc sysman shut node /auto

And it doesn't work on my system because I kill all users.

Better to go with a detached process.

Wim

Re: Rebooting using telnet from a VMS box

Joseph Huber_1 — Thu, 01 Jun 2006 04:50:28 GMT

Hassan, is the telnet protocol a hard requirement ?
I suppose if system has telnet, then it also has rsh or rexec available (or ssh):
then You simply cann send a single shutdown comand (whatever it is).

Re: Rebooting using telnet from a VMS box

Sk Noorul Hassan — Thu, 01 Jun 2006 05:03:58 GMT

Thanks for your suggestions. As far as KERMIT is concerned, I am not in a position to load it on my VMS boxes.

To use rsh or rexec, I do not have any single reboot/shutdown command to send. It is a menu driven proprietary o/s. To reboot I need to login using telnet and then selcting options as per requirement as attached in my question. Is there any other way to achive it.

Re: Rebooting using telnet from a VMS box

Volker Halle — Thu, 01 Jun 2006 05:16:20 GMT

You can certainly write your own TELNET client program - I know there was an example in the HP internal TIMA database once.

You need some kind of scripting possibility and this can only be provided by an already existing program (KERMIT would the tool to use - why can't you ?) or by a new program to be written...

You could also try to experiment with outbound TELNET devices, though I don't know if your version of UCX/TCPIP correctly works with them. Then it might be able to read/write from such a TNA: device using DCL - IF this can be done in line mode.

Volker.

Re: Rebooting using telnet from a VMS box

Sk Noorul Hassan — Thu, 01 Jun 2006 05:28:17 GMT

Yes Volker,
I am able to create on TNA1: device using TELNET/CREATE_SESSION IP Address [port] [unit]

Now what should me my approach ?

Re: Rebooting using telnet from a VMS box

Volker Halle — Thu, 01 Jun 2006 05:32:25 GMT

Can you try $ SET HOST/DTE/ESC=D TNAx: ? Do you get to your FEP and the menue ?

Does OPEN/READ/WRITE x TNAx: also work and can you then READ x line and WRITE x command ?

Using KERMIT would be really much easier...

Volker.

Re: Rebooting using telnet from a VMS box

Sk Noorul Hassan — Thu, 01 Jun 2006 06:00:57 GMT

Volker, I am getting Connected message but not my FEP menu.

Re: Rebooting using telnet from a VMS box

Volker Halle — Thu, 01 Jun 2006 06:09:08 GMT

I tried this and it works for me:

TELNET> create_sess vaxvms 23
%TELNET-S-CRSES, Session created on TNA397
TELNET> Exit
AXPVMS $ set host/dte/esc=d tna397:

%REM-I-TOQUIT, connection established

Press Ctrl/D to quit, Ctrl/@ for command mode

{ {

Welcome to OpenVMS/VAX Operating System, Version V6.2

Username:

Did you specify the IP address of your FEP and port 23 ? Can you just try it with your local host or another OpenVMS system ?

Volker.

Re: Rebooting using telnet from a VMS box

Sk Noorul Hassan — Thu, 01 Jun 2006 06:26:34 GMT

Volker,

For any other VMS server also I am not getting the login prompt as described in your answer. Yes I mentioned the FEP ip address & port 23

Re: Rebooting using telnet from a VMS box

Volker Halle — Thu, 01 Jun 2006 06:49:56 GMT

This is what I said:

You could also try to experiment with outbound TELNET devices, though I don't know if your version of UCX/TCPIP correctly works with them

I can confirm that I also can't get the username prompt of a remote OpenVMS server, if I use the outbound TELNET device from an OpenVMS VAX V6.2 UCX V4.2 ECO 1 system.

Back to square 1: why can't you use KERMIT ?

Volker.

Re: Rebooting using telnet from a VMS box

Sk Noorul Hassan — Wed, 14 Jun 2006 02:52:58 GMT

Hi all,

Sorry for the delayed response. I went through the various sites as suggested by you all. Although I could not install kermit in my VAX/VMS server due, it helped me in gaining knowledge on Kermit software.

Thanks

Re: Rebooting using telnet from a VMS box

Wim Van den Wyngaert — Wed, 14 Jun 2006 03:24:12 GMT

I would check what the menu is exactly doing. If you try to reboot a node via the network, the protocol (IP) may shutdown before the node is crashed and thus the reboot sequence may get aborted.

You should have a way to login on the console port (e.g. console manager or cockpit).

Wim