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DCOP over SSH annoyance

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itakeumbrage

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1

Sunday, July 16th 2006, 9:22pm

DCOP over SSH annoyance

So I have a server running a few applications under the user binky. If I approach the server and open a terminal and run dcop from the command-line, everything works fine.

However, if I ssh to binky@server and run dcop, I get "ERROR: Couldn't attach to DCOP server!" On the other hand, if I run "dcop --user binky" everything works fine.

It's a minor annoyance, but shouldn't dcop be connecting to binky's server by default, since I'm logged in as him? Any advice on this front?

This post has been edited 1 times, last edit by "itakeumbrage" (Jul 16th 2006, 9:22pm)

GotenXiao

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Monday, July 17th 2006, 6:53pm

I had something like this when setting up a cron'd DCOP message. You'll need to use dcop --user [user], possibly even dcop --user [user] --session [session]. Check dcop --help for better information :P

SeanTater

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Wednesday, July 26th 2006, 3:58pm

RE: DCOP over SSH annoyance

I have the same problem, but I did not even think of the --user option, instead, I use what makes all my x programs work over ssh. I did this:

export DISPLAY=':0'

I set it in a function in ~/.bashrc. It's quite helpful and helps for running things on the computer which you don't want forewarded to your computer.

If you want, try this:

on the computer that you are running dcop on:

Source code

 
1
2
3
4
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tee -a ~/.bashrc <<eof
function makexwork {
    export DISPLAY=':0'
}
eof


Then, afterwards, just type

Source code

 
1

makexwork
to make dcop and other various programs work for the remainder of the session.

This post has been edited 1 times, last edit by "SeanTater" (Jul 26th 2006, 3:59pm)

GotenXiao

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Wednesday, July 26th 2006, 8:30pm

The only problem with this solution is if you're running multiple X servers, since you'll need to change DISPLAY appropriately.

You may want to investigate using ssh -X, which enables X11 forwarding and probably achieves what you're after. I wouldn't know, since I haven't done testing of my own, but I think doing some quick Googling will result in much more information than that available in man ssh ;)