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A comment on How Nat Traversal Works. Parent comment

Re:How Nat Traversal Works by stevekemp on Thursday August 03, 2023 @01:15PM (#36988749)
TCP over DNS has been a thing for a long time, though I guess it's fallen out of favour because "real" VPNs are so easily available nowadays.

For example you can see here:

https://analogbit.com/software/tcp-over-dns/

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