What does route -n print? You should have this line, among others:
127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo
What does route -n print? You should have this line, among others:
127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo
That does appear when I run that.
Just a note to others who attempt what is described in this thread… Although I can’t argue the educational aspects of learning how to manually configure IP Tables in conjunction with installing and activating a simple ProFTP install, I highly recommend
The only non-default customization I did was to specify a different FTP virtual root, and the Server was up and running within 5 minutes (after a 5 minute ProFTP install using YAST). No fuss, no muss. Just another 10 minutes of testing to verify security controls were working, locked down and not vulnerable to typical exploits.
Tony