bash: /usr/bin/X11/xterm: No such file or directory

If you're get error while connecting  to unix server via xstart


Problem:

bash: /usr/bin/X11/xterm: No such file or directory xstart


change your command

/usr/bin/X11/xterm –ls –display $DISPLAY


remove '/usr/bin/X11' at this command



just below:


Solution:

xterm -ls -display $DISPLAY

ORA-12638

Problem:

ORA-12638: Credential retrieval failed

Solution:

vi $ORACLE_HOME/NETWORK/ADMIN/sqlnet.ora

SQLNET.AUTHENTICATION_SERVICES= (NTS) change it to

SQLNET.AUTHENTICATION_SERVICES= (NONE)

Xsetroot vnc problem

   After I installed Linux Red Hat 6 I tried to connect the server via vncserver.But I get
some error about 'xsetroot'.When I wanted to connect vnc,vnc start successfully but
there was an error in log file.I tried to solve this problem for two days;but I can't solve it.Then  I changed viewpoint.Sometimes we should change our viewpoint:))

Problem:


Thu Sep 27 13:34:57 2012
 vncext:      VNC extension running!
 vncext:      Listening for VNC connections on all interface(s), port 5923
 vncext:      created VNC server for screen 0
expected keysym, got XF86TouchpadOn: line 120 of inet
expected keysym, got XF86TouchpadOff: line 121 of inet




Solution:

#service iptables restart

This command can be disabled the firewall


Try and success:)))