My bad... My custom script was actually calling "shorewall debug check" explicitly. That's because it was for an older shorewall release. I updated my custom script so it calls "shorewall check -D" instead. Now I get useful output such as:
ERROR: Duplicate DEST (WHATEVER) in table (WHICHEVER) Sorry for the noise, and thanks to all. _______________________________________________ Shorewall-users mailing list Shorewall-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/shorewall-users