Why does bittorrent not require port forwarding?
135970
how do torrent clients circumvent router's firewall?
35876
How does Router know where to forward packet
84298
persist port routing from 80 to 8080
144513
Why won't a 3G router do port forwarding when on the 3G interface?
84914
Internet sharing without DHCP
139205
NAT translation not working from inside the network (hairpin condition)
1819
iptables: how to allow traffic from redirected port
25005
Do all P2P connections need a server to connect them to each other?
98383
Can not access server using Port forwarding
107045
Allowing FTP with IPTables
81940
Many ISP's is block port 25, how do I choose an alternative port?
29460
ssh port forwarding from remote location to computers on server's network
130940
Why can't IP addresses start with 0 or 255?
88817
Why can't routers use MAC addresses instead of private/local IP addresses?
87496
TCP/IP stack implementing files in ubuntu
101180
How to setup a restricted SFTP server on Ubuntu?
73625
Why does my X11 forwarding attempt fail with "connect /tmp/.X11-unix/X0: No such file or directory"?