Before starting dsedit, verify that you have write permission on the interfaces file.
If you are running dsedit from a remote machine, verify that the DISPLAY environment variable is set so the dsedit screens display on your machine instead of on the remote machine.
Setting the DISPLAY environment variable
Log in to the remote machine.
Enter:
setenv DISPLAY your_machine_name:0.0
Enter:
$SYBASE/bin/dsedit
The Select a Directory Service window appears, letting you open editing sessions for the interfaces file. The full path name of the default interfaces file is shown in the Interfaces File to Edit box, and the full path name of the configuration file is shown below it.