[clue] ubuntu admin login as user

[Chris Hirsch]

You can probably also do a "xhost +" from the logged in user in a 
terminal window. This allows anybody to connect to your X server 
including root.
> Yaverot writes:
>> I can:
>> sudo su hisusername
>> but then the program I want to run can't access the running copy of X.
> I'd assume you're getting something about not being able to
> authenticate to the X server.  "Invalid MIT-MAGIC-COOKIE-1 key" or
> somesuch.  Or possibly that DISPLAY isn't set at all.
>
> If so, try this instead:
>
>    echo $DISPLAY
>    xauth list
>    # sudo clears lots of environment variables.
>    # su without '-' option changes a few, too
>    sudo su hisusername		
>    export DISPLAY=WHAT_DISPLAY_WAS_SET_TO_ABOVE
>    export XAUTHORITY=~hisusername/.Xauthority
>    xauth add OUTPUT_FROM_XAUTH_LIST_COMMAND_ABOVE
>
> Hope this helps.
>
> - Aaron
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