Linux operating systems

It is recommended to not operate Security Enhanced Linux® (SELinux) in enforcing mode while ITDT-GE is running.

On Red Hat Enterprise Linux 4 and 5 and SuSE Enterprise Linux 10, starting the online help might cause an error message Problems opening link / Unable to open web browser on {0}. Workarounds are to issue the commands
a) ln -s /usr/bin/firefox /usr/local/bin/mozilla
b) export MOZILLA_FIVE_HOME=/usr/lib/firefox<version>
Replace with the appropriate path to your installed Firefox version before ITDT-GE is started.

Gnome desktop

If you are using the Gnome desktop, be sure to log in to the desktop session as root to use ITDT-GE to prevent device access issues.

Linux GTK

ITDT-GE requires GTK3+ to run since version 9.4.0. On Linux systems with GTK2, ITDT can be installed or updated but does not start afterward.