[iodine-users] Difference between iodine and a VPN over UDP port 53

Nils Andre nils at nilsand.re
Thu Aug 19 14:10:25 CEST 2021

Hello everyone,

As stated on the homepage of iodine, a use case of iodine is to be able
to access the internet despite being in a network where internet access
is firewalled but DNS queries are allowed.

I would imagine that in most cases where this is the case, what is
actually happening is that requests over all ports but port 53 are
blocked. With this assumption in mind, how is iodine different than a
standard VPN over UDP port 53 (in terms of being able to access the



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