Apparently, though unproven, at 15:03 on Sunday 17 October 2010, Nikos Chantziaras did opine thusly:
> On 10/17/2010 04:00 PM, Nikos Chantziaras wrote: > > On 09/22/2010 09:48 PM, Andrey Vul wrote: > >> When I launch X programs via sudo, I get the following: > >> > >> $sudo gui-admin > >> No protocol specified > >> gui-admin: cannot connect to X server :0 > >> > >> ( Assume gui-admin is an X program ) > >> > >> But (gk|kde)su(do)? works. This is somewhat confusing. > > > > I just discovered something. Keeping HOME is not really recommended, > > because the programs that run as root will then use your user's > > configuration files and sometimes will set 'root' as their owner. As you > > can imagine, this is not a good thing. > > > > It seems what X programs really need is the .Xauthority file of the > > current X session. All you have to do is add this line to your ~/.bashrc: > > > > export XAUTHORITY="$HOME/.Xauthority" > > > > Then you don't have to configure sudoers to keep the HOME env var. > > (I have the tendency to press the "Send" button too soon...) > > Setting XAUTHORITY in the user's .bashrc also means that you don't have > to modify /etc/sudoers *in any way*, not even DISPLAY needs to be kept. > Setting XAUTHORITY is *all* what is needed. I owe you a beer :-) One little export and this annoying thingy has now gone away: $ sudo vi /etc/fstab Password: No protocol specified You have NO IDEA how long that has annoyed me and how long I've been searching for a solution. Make that two beers! -- alan dot mckinnon at gmail dot com