Is there any better documentation about it then you can find in /usr/share/doc/packages/SuSEfirewall2

Here[1] you'll find a Susefirewall2 documentation. Document is rather old, as Susefirewall2 itself is too.

I found these two scripts e.g.:

SuSEfirewall2_init SuSEfirewall2_setup

Why does SuSE needs two scripts?

There is are 3rd Script "SuSEfirewall2_final" The firewall starts in 3 stages 1]init Description: SuSEfirewall2_init does some basic setup and is the phase 1 of 3 of the SuSEfirewall initialization 2]setup Description: SuSEfirewall2_setup does some basic setup and is the phase 2 of 3 of the SuSEfirewall initialization. 3]up and running Description: SuSEfirewall2_final does finally set all the firewalling rules. Phase 3 of 3 of SuSEfirewall setup. All 3 scripts call /sbin/SuSEfirewall2 with different parameters. [1] http://sourceforge.net/project/showfiles.php?group_id=42064 the polarizer http://www.codixx.de/polarizer.html