Cant open X server on local machine
I'm trying to open GUI installation from shell without success so I tried first to open just xclock but was unable as well. usually export to DISPLAY solved the problem. I have a haunch that it security related but I lack the right knowledge to debug it.
[grid@localhost grid122]$ export DISPLAY=:0
[grid@localhost grid122]$ xclock
No protocol specified
Error: Can't open display: :0
[grid@localhost grid122]$ export DISPLAY=localhost:0
[grid@localhost grid122]$ xclock
Error: Can't open display: localhost:0
Tried different addresses as well:
localhost:0.0
127.0.0.1:0
127.0.0.1:0.0
Also modify /etc/hosts.allow didn't work.
I'm using CentOS 7 with GNOME
centos x11 x-server
edited Jun 4 '17 at 17:02
Jeff Schaller
39.3k1054125
asked Jun 4 '17 at 16:50
NirNir
44521020
add a comment |
I'm trying to open GUI installation from shell without success so I tried first to open just xclock but was unable as well. usually export to DISPLAY solved the problem. I have a haunch that it security related but I lack the right knowledge to debug it.
[grid@localhost grid122]$ export DISPLAY=:0
[grid@localhost grid122]$ xclock
No protocol specified
Error: Can't open display: :0
[grid@localhost grid122]$ export DISPLAY=localhost:0
[grid@localhost grid122]$ xclock
Error: Can't open display: localhost:0
Tried different addresses as well:
localhost:0.0
127.0.0.1:0
127.0.0.1:0.0
Also modify /etc/hosts.allow didn't work.
I'm using CentOS 7 with GNOME
centos x11 x-server
edited Jun 4 '17 at 17:02
Jeff Schaller
39.3k1054125
asked Jun 4 '17 at 16:50
NirNir
44521020
1
are you logged in as the same user as the one who opened the GUI / Gnome?
– Jeff Schaller
Jun 4 '17 at 17:06
1
related: unix.stackexchange.com/questions/10121/…
– Jeff Schaller
Jun 4 '17 at 17:07
it is different user than the one I logged in. I'll check the authority you send and report back
– Nir
Jun 4 '17 at 23:13
add a comment |
I'm trying to open GUI installation from shell without success so I tried first to open just xclock but was unable as well. usually export to DISPLAY solved the problem. I have a haunch that it security related but I lack the right knowledge to debug it.
[grid@localhost grid122]$ export DISPLAY=:0
[grid@localhost grid122]$ xclock
No protocol specified
Error: Can't open display: :0
[grid@localhost grid122]$ export DISPLAY=localhost:0
[grid@localhost grid122]$ xclock
Error: Can't open display: localhost:0
Tried different addresses as well:
localhost:0.0
127.0.0.1:0
127.0.0.1:0.0
Also modify /etc/hosts.allow didn't work.
I'm using CentOS 7 with GNOME
centos x11 x-server
edited Jun 4 '17 at 17:02
Jeff Schaller
39.3k1054125
asked Jun 4 '17 at 16:50
NirNir
44521020
I'm trying to open GUI installation from shell without success so I tried first to open just xclock but was unable as well. usually export to DISPLAY solved the problem. I have a haunch that it security related but I lack the right knowledge to debug it.
[grid@localhost grid122]$ export DISPLAY=:0
[grid@localhost grid122]$ xclock
No protocol specified
Error: Can't open display: :0
[grid@localhost grid122]$ export DISPLAY=localhost:0
[grid@localhost grid122]$ xclock
Error: Can't open display: localhost:0
Tried different addresses as well:
localhost:0.0
127.0.0.1:0
127.0.0.1:0.0
Also modify /etc/hosts.allow didn't work.
I'm using CentOS 7 with GNOME
centos x11 x-server
centos x11 x-server
edited Jun 4 '17 at 17:02
Jeff Schaller
39.3k1054125
asked Jun 4 '17 at 16:50
NirNir
44521020
edited Jun 4 '17 at 17:02
Jeff Schaller
39.3k1054125
asked Jun 4 '17 at 16:50
NirNir
44521020
edited Jun 4 '17 at 17:02
Jeff Schaller
39.3k1054125
edited Jun 4 '17 at 17:02
Jeff Schaller
39.3k1054125
edited Jun 4 '17 at 17:02
Jeff Schaller
39.3k1054125
39.3k1054125
asked Jun 4 '17 at 16:50
NirNir
44521020
asked Jun 4 '17 at 16:50
NirNir
44521020
asked Jun 4 '17 at 16:50
NirNir
44521020
44521020
1
are you logged in as the same user as the one who opened the GUI / Gnome?
– Jeff Schaller
Jun 4 '17 at 17:06
1
related: unix.stackexchange.com/questions/10121/…
– Jeff Schaller
Jun 4 '17 at 17:07
it is different user than the one I logged in. I'll check the authority you send and report back
– Nir
Jun 4 '17 at 23:13
add a comment |
1
are you logged in as the same user as the one who opened the GUI / Gnome?
– Jeff Schaller
Jun 4 '17 at 17:06
1
related: unix.stackexchange.com/questions/10121/…
– Jeff Schaller
Jun 4 '17 at 17:07
it is different user than the one I logged in. I'll check the authority you send and report back
– Nir
Jun 4 '17 at 23:13
1
1
are you logged in as the same user as the one who opened the GUI / Gnome?
– Jeff Schaller
Jun 4 '17 at 17:06
are you logged in as the same user as the one who opened the GUI / Gnome?
– Jeff Schaller
Jun 4 '17 at 17:06
1
1
related: unix.stackexchange.com/questions/10121/…
– Jeff Schaller
Jun 4 '17 at 17:07
related: unix.stackexchange.com/questions/10121/…
– Jeff Schaller
Jun 4 '17 at 17:07
it is different user than the one I logged in. I'll check the authority you send and report back
– Nir
Jun 4 '17 at 23:13
it is different user than the one I logged in. I'll check the authority you send and report back
– Nir
Jun 4 '17 at 23:13
add a comment |
1 Answer
1
active
oldest
votes
Answer found here once I understand the problem - I can start xclock from the user I logged in but not from other users.
Solution was running xhost + from the user I logged into.
Funny thing is I did xhost + numerous times before.
answered Jun 5 '17 at 8:55
NirNir
44521020
That's a terrible solution unless you are absolutely totally sure your X Server can't be accessed remotely (directly on port 6000 or indirectly by someone logging in to your machine remotely).
– roaima
Jan 11 at 8:12
add a comment |
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Answer found here once I understand the problem - I can start xclock from the user I logged in but not from other users.
Solution was running xhost + from the user I logged into.
Funny thing is I did xhost + numerous times before.
answered Jun 5 '17 at 8:55
NirNir
44521020
That's a terrible solution unless you are absolutely totally sure your X Server can't be accessed remotely (directly on port 6000 or indirectly by someone logging in to your machine remotely).
– roaima
Jan 11 at 8:12
add a comment |
Answer found here once I understand the problem - I can start xclock from the user I logged in but not from other users.
Solution was running xhost + from the user I logged into.
Funny thing is I did xhost + numerous times before.
answered Jun 5 '17 at 8:55
NirNir
44521020
That's a terrible solution unless you are absolutely totally sure your X Server can't be accessed remotely (directly on port 6000 or indirectly by someone logging in to your machine remotely).
– roaima
Jan 11 at 8:12
add a comment |
Answer found here once I understand the problem - I can start xclock from the user I logged in but not from other users.
Solution was running xhost + from the user I logged into.
Funny thing is I did xhost + numerous times before.
answered Jun 5 '17 at 8:55
NirNir
44521020
Answer found here once I understand the problem - I can start xclock from the user I logged in but not from other users.
Solution was running xhost + from the user I logged into.
Funny thing is I did xhost + numerous times before.
answered Jun 5 '17 at 8:55
NirNir
44521020
answered Jun 5 '17 at 8:55
NirNir
44521020
answered Jun 5 '17 at 8:55
NirNir
44521020
answered Jun 5 '17 at 8:55
NirNir
44521020
44521020
That's a terrible solution unless you are absolutely totally sure your X Server can't be accessed remotely (directly on port 6000 or indirectly by someone logging in to your machine remotely).
– roaima
Jan 11 at 8:12
add a comment |
That's a terrible solution unless you are absolutely totally sure your X Server can't be accessed remotely (directly on port 6000 or indirectly by someone logging in to your machine remotely).
– roaima
Jan 11 at 8:12
That's a terrible solution unless you are absolutely totally sure your X Server can't be accessed remotely (directly on port 6000 or indirectly by someone logging in to your machine remotely).
– roaima
Jan 11 at 8:12
That's a terrible solution unless you are absolutely totally sure your X Server can't be accessed remotely (directly on port 6000 or indirectly by someone logging in to your machine remotely).
– roaima
Jan 11 at 8:12
add a comment |
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1
are you logged in as the same user as the one who opened the GUI / Gnome?
– Jeff Schaller
Jun 4 '17 at 17:06
1
related: unix.stackexchange.com/questions/10121/…
– Jeff Schaller
Jun 4 '17 at 17:07
it is different user than the one I logged in. I'll check the authority you send and report back
– Nir
Jun 4 '17 at 23:13