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тАО05-24-2011 07:57 AM
тАО05-24-2011 07:57 AM
Does anyone know of a built-in method that would work better than the method below.
My thoughts so far are to create a local TELNET port and remote listener service. When I open the local port, I can send commands through that can be read from the BG mailbox device.
The commands could then be used to trigger specific actions, such as starting a backup.
Cheers, Rob.
Solved! Go to Solution.
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тАО05-24-2011 08:11 AM
тАО05-24-2011 08:11 AM
Re: VMS-to-VMS RPC
Is DECnet really not available? If you do have DECnet, then it is as simple as SUBMIT/REMOTE.
Failing that, I would look into the TCP/IP "R_commands". If you are using Digital UCX or TCP/IP, then see HELP UCX R_COMMANDS or HELP TCP/IP R_COMMANDS. Otherwise see the corresponding help for whichever TCP stack you are using.
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тАО05-24-2011 08:26 AM
тАО05-24-2011 08:26 AM
SolutionBasic IP network communications? Via telnet? Um, OK. Not my first choice here. Use of telnet means you have to mess around with and even embed cleartext passwords, if security is a concern (and if you don't have kerberized telnet configured), and passing over commands and sequences, which gets gnarly. telnet can be good as a basic troubleshooting tool. It's not so good in a production environment.
curl to a CGI in a web server can be an option, if there's a web server on the target. But that's probably reasonable only if you already have a web server running on the target.
Task-to-task DCL DECnet (yes, DECnet) can be an option here, given that DECnet Phase V (if you have that configured) operates over an IP connection. Or (depending on what you're up to here) the generic SUBMIT /REMOTE command, also via DECnet over IP.
One of the simplest approaches here is ssh. Not because it has similarities to telnet, but because ssh can trigger commands on the remote host. Details on remote commands here:
http://h71000.www7.hp.com/openvms/products/ssh/ssh_restrictions.pdf
And of course rexec and rsh are also an option, and those are part of basic IP shells, and VMS has those with most IP stacks. Details in the TCP/IP Services shelf here:
http://www.hp.com/go/openvms/doc
VMS doesn't cluster all that well, so you're fairly limited in the remote options via IP; VMS is substantially lacking in modern IP tools, unfortunately. Even something as simple as netcat (nc) completely blows the sneakers off of most of what VMS has to offer, for instance.
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тАО05-24-2011 09:06 AM
тАО05-24-2011 09:06 AM
Re: VMS-to-VMS RPC
$ rsh/pass=xxxxxxxx
_Hostname: delta
_Command: sh user
%%%%%%%%%%% OPCOM 24-MAY-2011 18:08:13.75 %%%%%%%%%%%
Message from user INTERnet on DELTA
INTERnet ACP REXEC Accept Request from Host: 192.168.244.240 Port: 1023
OpenVMS User Processes at 24-MAY-2011 18:08:13.82
Total number of users = 2, number of processes = 2
........
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тАО05-24-2011 09:15 AM
тАО05-24-2011 09:15 AM