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How to display xterm windows on Openvms

Srikanth Arunachalam
Trusted Contributor

How to display xterm windows on Openvms

Hi,

We are to setup new OpenVMS kit for itanium (v8.1-2). I have set the following
SET DISPLAY/CREATE/TRANSPORT=TCPIP/NODE=
while I execute the below command the display doesnt comeup.

Please advice.
RUN SYS$SYSTEM:DECW$CLOCK


thanks,
Srikanth

7 REPLIES
Peter Zeiszler
Trusted Contributor

Re: How to display xterm windows on Openvms

As with any x-window environment you have to open up your security on your display on "node1". Your "node1" must also be able to resolve via either hosts.local or DNS lookup.

Assuming TCPIP:
nslookup node1

tcpip show host node1
Andy Bustamante
Honored Contributor

Re: How to display xterm windows on Openvms


In Linux, the "xhost" command is used to allow a remote node access. There are menu choices in the Windows add on packages to configure a server trusted to open X windows sessions. You may also want to try adding /screen=0 to the SET DISPLAY command.

An excellent reference is: Linux & OpenVMS Interoperability: Tricks for Old Dogs, New Dogs, and Hot Dogs with Open Systems
by John Robert Wisniewski.

Andy

If you don't have time to do it right, when will you have time to do it over? Reach me at first_name + "." + last_name at sysmanager net
Steven Schweda
Honored Contributor

Re: How to display xterm windows on Openvms

What is "node1"?

What _does_ happen when you RUN ...?

In SYS$MANAGER:DECW$PRIVATE_SERVER_SETUP.COM,
does "decw$server_transports" include
"TCPIP"?
Srikanth Arunachalam
Trusted Contributor

Re: How to display xterm windows on Openvms

Hi,

Thanks everybody. Due to security reason, we cannot set the environment for xwindows. I will revoke the idea suggested by Oracle installation and will look for some other alternative.

Thanks,
Srikanth A
Joseph Huber_1
Honored Contributor

Re: How to display xterm windows on Openvms

I assume login to the VMS system from a terminal window on node1, and the security setup does not allow insecure X11 connections to node1.

One possibility is to use SSH with X11 port forwarding: then You have a secure X11 connection.

Another option is xauth/kerberos authentication instead xhost. I have no experience, but I think actual Decwindows/Motif supports that.
http://www.mpp.mpg.de/~huber
Andy Bustamante
Honored Contributor

Re: How to display xterm windows on Openvms


Your network security requirements may allow for a secure tunnel. You can use a VPN client/server to tunnel secure traffic. I've used X over a Cisco VPN session to send performance graphics from an Alphaserver in one state to a PC in another state.

Andy

If you don't have time to do it right, when will you have time to do it over? Reach me at first_name + "." + last_name at sysmanager net
Jayshankar K J
Occasional Advisor

Re: How to display xterm windows on Openvms

Hi Srikanth,

what is your terminal software? Is it a Putty or reflection X? You may have to use something like eXcursion if you are using a Putty or Pathworks.

The eXcursion X server lets you run X applications from any supported operating system on your PC

Agin, if you are using a SSH connection, you should have the correct port forwarding. Otherwise, it wont work.

regards
shankar