topic Re: Rebooting a Front End Processor(FEP) using TELNET or FTP in Operating System - OpenVMS

Rebooting a Front End Processor(FEP) using TELNET or FTP

Sk Noorul Hassan — Mon, 12 Dec 2005 12:21:55 GMT

Hi,

I have got Front End processors which allows login using telnet. To reboot the FEP, I have to select option 1 & option 16 and then then select 1 to finally reboot the FEP.
So is it possible to write a DCL sript to reboot the FEP using Telnet or FTP ?

Re: Rebooting a Front End Processor(FEP) using TELNET or FTP

Andy Bustamante — Mon, 12 Dec 2005 12:46:49 GMT

Assuming your FEP is a VMS system, it sounds like the login you're using provides a menu. The VMS shutdown command file is:

@sys$system:shutdown

You need an account which gives you access to DCL. You could also try signing on with the /NOCOMMAND qualifier following your user name. This will bypass the login.com for the user. If the user is configured to run as a captive account this still won't give you DCL access however.

In addtion to the VMS shutdown, your application may need a graceful shutdown as well. I'd start by reviewing the login.com and seeing what provides the menu you see.

Andy

Re: Rebooting a Front End Processor(FEP) using TELNET or FTP

Sk Noorul Hassan — Mon, 12 Dec 2005 13:18:34 GMT

Andy,

Actually, my FEP is having it's own O/S in it and I have to reboot it sitting in my main server, which runs on VMS using telnet.

Re: Rebooting a Front End Processor(FEP) using TELNET or FTP

Wim Van den Wyngaert — Mon, 12 Dec 2005 14:29:50 GMT

FTP will be difficult.

Isn't there some form of rsh, rexec or rlogin on the fep that allows you to exec the boot command ?

Wim

Re: Rebooting a Front End Processor(FEP) using TELNET or FTP

Heinz W Genhart — Mon, 12 Dec 2005 14:39:29 GMT

Hi Hassan

what I did not understand until now, is Your FEP a VMS Machine ?

Re: Rebooting a Front End Processor(FEP) using TELNET or FTP

Heinz W Genhart — Mon, 12 Dec 2005 14:46:58 GMT

Hi Hassan

If Your FEP is a VMS machine, then the proble You have is, that the network will be shutdown early in the shutdown process and You will be disconnected.

If so, You can execute a command file on the target machine, which does the shutdown as detached process.
A Example, how to do this is the following:

$ set ver
$ IF F$MODE() .EQS. "BATCH" THEN GOTO start_detached
$ depth = F$ENVIRONMENT("DEPTH")
$ IF depth .EQ. 0 THEN GOTO run_detached
$ GOTO start_detached
$!
$start_detached:
$ this_node=F$EDIT(F$GETSYI("NODENAME"),"COLLAPSE")
$ date=F$CVTIME("","comparison","DATE")
$ RUN SYS$SYSTEM:LOGINOUT.EXE -
/INPUT='F$ENVIRONMENT("PROCEDURE")' -
/OUTPUT='F$TRNLNM("SYS$LOGIN")'Shutdown_'this_node'_'date'.log -
/ERROR='F$TRNLNM("SYS$LOGIN")'Shutdown_'this_node'_'date'.log -
/PROC=SHUTDOWN -
/DETACHED
$ EXIT
$!
$run_detached:
$ REPL/ALL/BEL/URGENT "Detached REBOOT of ''F$GETSYI("NODENAME")'. PID is ''F$GETJPI("","PID")'"
$ SHUTDOWN == "@SYS$SYSTEM:SHUTDOWN 0 SHUTDOWN NO YES LATER NO NONE"
$ SHUTDOWN

Hope that may help ...

Re: Rebooting a Front End Processor(FEP) using TELNET or FTP

Heinz W Genhart — Mon, 12 Dec 2005 14:48:32 GMT

Re: Rebooting a Front End Processor(FEP) using TELNET or FTP

Edwin Gersbach_2 — Tue, 13 Dec 2005 02:06:27 GMT

As Hassan said his FEP has its own (non VMS) O/S but allowes telnet connections (which is currently used interactively to shutdown the FEP) he probably is after a method to open a telnet session from within a DCL script, sending some characters to the remote node just as if they where typed in an interactively.

Edwin

Re: Rebooting a Front End Processor(FEP) using TELNET or FTP

Volker Halle — Tue, 13 Dec 2005 02:06:39 GMT

Hi,

wouldn't KERMIT be the right tool to create a script of remote commands to walk through the command menue and shutdown your FEP ?

Volker.

Re: Rebooting a Front End Processor(FEP) using TELNET or FTP

Sk Noorul Hassan — Tue, 13 Dec 2005 04:28:37 GMT

Edwin is right. I want some kind of DCL script which I will execute in my VMS server that will login to FEP (non VMS o/s) using Telnet and will reboot the FEP.

Re: Rebooting a Front End Processor(FEP) using TELNET or FTP

Ian Miller. — Tue, 13 Dec 2005 08:27:37 GMT

A relativly modern version of kermit (c-kermit) will have telnet support and scripting capability sufficent to do this.

Re: Rebooting a Front End Processor(FEP) using TELNET or FTP

Lawrence Czlapinski — Wed, 14 Dec 2005 13:16:07 GMT

Sk Noorul Hassan:
1. FTP won't execute a script on a non-VMS or even a VMS FEP. The best you could do would be to send a trigger file and have the FTP take some action when it sees it.
2. TELNET: I don't know of a way to write a DCL script to reboot a non-VMS FEP using Telnet.
3. That is why others have suggested using a terminal emulator with scripting capabilities like c-kermit. In the past I've used Reflections terminal emulator scripting capabilities.
4. For a VMS FEP, you could do:
$ type 'p1'::"task=shbst1"
Unfortunately that doesn't help you.
Lawrence