X-Tunnel: Unterschied zwischen den Versionen
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K (hat „SSH-Tunnel“ nach „X-Tunnel“ verschoben) |
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(2 dazwischenliegende Versionen desselben Benutzers werden nicht angezeigt) | |||
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1. check the display no. where you switch from: | 1. check the display no. where you switch from: | ||
env |grep DISPLAY | env |grep DISPLAY | ||
2. query the xauth cookies by issuing: | 2. query the xauth cookies by issuing: | ||
xauth list | xauth list | ||
3. switch to the user you prefer: | 3. switch to the user you prefer: | ||
sudo su - another_user | sudo su - another_user | ||
4. add extra authorized key at present user: | 4. add extra authorized key at present user: | ||
xauth add "extra entry queried from procedure #2" | xauth add "extra entry queried from procedure #2" | ||
==Practice procedures== | ==Practice procedures== | ||
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[kevin@localhost kevin]# xterm | [kevin@localhost kevin]# xterm | ||
</pre> | </pre> | ||
[[Category:Linux]] |
Aktuelle Version vom 12. Februar 2009, 00:59 Uhr
How to enable X tunnels while changing user under UNIX
Scenario
Ever wanted to use X tunneling while you have logged in Unix box and made an su to another user. The typical error is
Xlib: connection to "host.domain.de:11.0" refused by server Xlib: PuTTY X11 proxy: wrong authentication protocol attempted /usr/X/bin/xterm Xt error: Can't open display: host.domain.de:
Solution
So if you do need to lunch X app from present user on local machine, you have to add the authorized cookie into pre-sent user you're dealing with:
1. check the display no. where you switch from:
env |grep DISPLAY
2. query the xauth cookies by issuing:
xauth list
3. switch to the user you prefer:
sudo su - another_user
4. add extra authorized key at present user:
xauth add "extra entry queried from procedure #2"
Practice procedures
[jason@localhost jason]$ env | grep DISPLAY DISPLAY=localhost:12.0 [jason@locahost jason]$ xauth list localhost/unix:0 MIT-MAGIC-COOKIE-1 84654a48ba11956ccf7f54f01fa7d8d0 localhost.sinica.edu.tw:0 MIT-MAGIC-COOKIE-1 84654a48ba11956ccf7f54f01fa7d8d0 localhost/unix:15 MIT-MAGIC-COOKIE-1 411a9000746c56815b1afb9bfe60d236 localhost/unix:14 MIT-MAGIC-COOKIE-1 c6fe37c11291ebcffd94645b35d3c196 localhost/unix:13 MIT-MAGIC-COOKIE-1 283dcbd133a8db656f8e9dbb24561a53 localhost/unix:11 MIT-MAGIC-COOKIE-1 7c7b8247e565eba285b29524d7decdfc localhost/unix:12 MIT-MAGIC-COOKIE-1 16054c424ae50b3189d4a9f1ddf00807 localhost/unix:10 MIT-MAGIC-COOKIE-1 39fa101fe29465f1cc0b50a11a24203d [jason@localhost jason]$ sudo su - kevin Password: [kevin@localhost kevin]# xauth add localhost/unix:12 MIT-MAGIC-COOKIE-1 39fa101fe29465f1cc0b50a11a24203d [kevin@localhost kevin]# xterm