Re: Trouble with X11 over SSH on Mandriva 2010.0

On Wed, 24 Feb 2010 13:00:27 -0500, Kevin the Drummer <(E-Mail Removed)> wrote:

> On my Mandriva 2007.0 system X11 works over SSH. Here's my test case
> that I need to have working.
>
> 1. ssh -f somehost xterm
> 2. 'su' in the new xterm
> 3. run any graphical program from the su'd shell
>
> On the Mandriva 2007.0 system this works fine. On my 2010 system I get
> this error:

Instead of using su, then the graphical program, try sudo program.

Regards, Dave Hodgins

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Kevin the Drummer <(E-Mail Removed)> wrote:
> Say, I've been wanting to know how to get sudo to work with redirection.
> By that I mean that I need root permission to write into the redirection
> target.

Consider:
some_command > some_file

The "> some_file" happens before "some_command" is run. So when you try
this with sudo:
sudo some_command > some_file

The "> some_file" happens as the invoking user, not as the sudo target
user. (But you know this, right?)

So, in order to get the "> some_file" to happen as the sudo target user,
you need to include that in the sudo command. The only way to get that
to happen is to have sudo execute a shell. So you get this:
sudo sh -c "some_command > some_file"

I'm sure you can create variations on that theme for tcsh.
Chris