What ports do I need to open in my firewall? I'm running the Bastille-Linux firewall with all ports closed for incoming traffic. I've tried opening port 6346 (the one that is configured as "listen port"), but it still doesn't seem to work (the files get to "push sent" and stay there). Without the firewall I can download files. Do I need to open any other ports? |
Unfortunately, as far as I can tell, napshare doesn't play nicely with firewalls at all; it doesn't allow you to specify the local port range it uses for incoming connections. Therefore, when napshare binds a local socket to listen for the incoming file transfer, the OS picks a local port out of the ephemeral port range. Which means, essentially, if you want napshare to work behind a firewall, you need to open the entire ephemeral port range. You can tell what the range is by viewing the contents of this /proc file: /proc/sys/net/ipv4/ip_local_port_range IMO, napshare desperately needs to provide a way for the user to select the local port range used for incoming connections. |
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