ICMPTX (IP-over-ICMP) HOWTO
ICMPTX (IP-over-ICMP) HOWTO
See the current ICMPTX project home page
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Problem
You’re sitting in an airport or in a cafe, and people want your money for Internet access. They do allow ICMP traffic, though (i.e., you can ping machines on the Internet). Enters ICMPTX. (If you can’t use ping, but you can issue name queries, [...]
NSTX (IP-over-DNS) HOWTO
NSTX (IP-over-DNS) HOWTO
Problem
You’re sitting in an airport or in a cafe, and people want your money for Internet access. They do allow DNS traffic, though.
If the ISP allows DNS traffic to any DNS server (and not just their own), you might consider running OpenVPN on UDP port 53 (thanks to Norman Rasmussen for this suggestion). [...]