I've been trying to convert an old command line run perl script to perl/cgi. I've come across a bit of a snag. Part of my script needs to open a ds9 window (it needs to run, but not necessarily be displayed). Apparently this requires a window server to be available for rendering (X11?).
The original script runs flawlessly through a command line on the computer hosting the cgi script. In my perl cgi script, I have tried to call ds9 using backticks or system commands (eg `ds9 -dsssao coord $RA $DEC sexagesimal -catalog save tsv /tmp/tempGS.tsv -quit &`; This command opens a ds9 window, prints some info to a text file and then closes the ds9 window). I receive the following errors in my error logs:
'xhost: unable to open display "", Application initialization failed'
Does anyone know if it is possible to open a window server through a perl cgi script. Any help would be greatly appreciated. Thanks

In reply to perl/cgi and x11 by jebby

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