7.3 with active SuSE Firewall.
Unfortunately I can load files but no one is able to load my files. When I deactivate my firewall download from my host is possible.

You may want to get the latest CVS version, I just went over all the upload code and made a lot of changes and automation has a lot more filter options.

Dont know how to deal with the CVS. I'm a brand new Linux-User. I think I will wait for the next release of NAPSHARE because now it's running. I installed SuSE-FireWall2 based on IPTaples and opened Port 6346...

You should add the port range in /proc/sys/net/ipv4/ip_local_port_range to your allow-list (as usural this is dangerous, but it should not affect your system. If you have service processes running, you might want to make sure your local port range does not include your service processes) or force your IP to be 192.168.0.1 (this will propably allow other clients to recognize the need of a push, but I'm not sure here).

HTH