Foo over UDP [LWN.net]Tunneling protocols are increasingly important in modern networking setups. By tying distant networks together, they enable the creation of virtual private networks, access to otherwise-firewalled ports, and more. Tunneling can happen at multiple levels in the networking stack; SSH tunnels are implemented over TCP, while protocols like GRE and IPIP work directly at the IP level. Increasingly, thou
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20 years of Slackware [LWN.net]
