In computer networking, Network Address Translation (NAT) is the process of modifying IP address information in IPv4 headers while in transit across a traffic routing device.

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iptables: how to allow traffic from redirected port

I have a web service running on debian 7 and listening on port 8080. I want to redirect 80 to 8080 for inbound connections and allow only port 80. Here is my iptables configuration: root@localhost:~# ...
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Copying a file using SSH over a tunnel with cert forwarding

I need to find a way to copy files from mymachine to a server priv-server sitting on a private NATted network via a server pub-server with a public IP. The behind-NAT machine priv-server only has ...