2 ms·
> I never thought to use DNS as a tunnel Most firewalls drop or hijack packets on port 53.
by ignoramous 4y ago
> I never thought to use DNS as a tunnel
Most firewalls drop or hijack packets on port 53.
- 1vuio0pswjnm7 4y agoI have experienced this, i.e., hijacking, but I would respectfullly contest the term "most". But perhaps the statement was only referring to airports. I could be wrong but I like to think it is a minority of networks that hijack or block DNS. For example, a minority of consumer ISPs, other networks controlled by third parties (airports, hotels, etc.) or countries that conduct extremely aggressive internet censorship.