[ccm_root@hostname] 1089 {ccm_root} > echo $DISPLAY

[ccm_root@hostname] 1090 {ccm_root} > export DISPLAY=hostname:51 [ccm_root@hostname] 1091 {ccm_root} > echo $DISPLAY
hostname:51 [ccm_root@hostname] 1092 {ccm_root} > xclock No protocol specified Error: Can't open display: hostname:51 Exit 1

Still xclock is not getting open, if someone knows how to resolve this problem then please let me know