[feature] Limit dns query size in ssh mode/slipstream

[jacyimp]

Due to recent changes in infrastructures in Iran, only dnstt/noizdns socks with dns query size up to 72 works, regardless of the resolver. This isn't the case everywhere though.

Dnstt(Ssh), and slipstream aren't working anymore.

Slipstream socks/ssh isn't working since its query size can't be limited currently, and dnstt/noizdns ssh doesn't work because the connect overhead isn't limited by dns-query-size param(I'm guessing)

Would be nice to have the dns query size apply to dnstt(ssh) and slipstream(socks/ssh)

[anonvector]

Which script are you using for NoizDNS? I'm asking because NoizDNS-deploy script does not support ssh at all.

[jacyimp]

My bad. Dnstt ssh/slipstream ssh/slipstream socks, doesn't work anymore.

Tried different mtu on client/server side too. Down to 512.

The query size reduction to 50-70 works perfectly though for noizdns socks/dnstt socks. E2e suddenly works the moment you go from 80 to 70 or so. Sad the cli (slipnet/dnstt client) doesn't support query size though afaik.

[jacyimp]

Thanks for the CLI DNS query size update! Built and ran it on my servers and it works like a charm!

One thing I had to tweak, was to hard-code e2e query size to 50 for maximum compatibility. Otherwise e2e test would fail even though dnstt connect (socks) works in the cli for that server. Alternatively, it could've been a param too I suppose.

Other than that, DNSTT[socks] with payload size of 50 worked perfectly on the CLI. Thanks! :)

DNSTT SSH, and Slipstream are still failing of course due to lack of proper payload size I'm guessing?

PS. Had to substitute noizdns/mobile lib with dnstt/mobile in e2e.go and main.go, and get rid of the noize mode stuff, since the NoizDNS git submodule is still private. Nonetheless, it worked! With DNSTT of course, and not Noizdns.

[anonvector]

Glad to hear it's working.
So is it better to run an end-to-end test with a DNS query of 50?
Soon a compiled version of SlipNet with NoizDNS will be available for download on GitHub with the next release.

[nos486]

how can i set query size in cli app ? there is no information for that.
thanks