Cannot publish a dat, doctor command is missing, any ports should I forward to me?

Watching DatProject for 2 years, still I'm waiting for some great news! :-(

Tested 14.0.2 version on a Linux Ubuntu 18.04 x64 machine! First of all: doctor command is not found:

$ .dat/releases/dat-14.0.2-linux-x64/dat doctor

all I get is the help!

Tried last DatDesktop app. Published a DAT folder here ... tried to access it there , both computers under home wifi routers. Didn't worked! Tried Doctor command inside DatDesktop. It keeps saying

[info] Testing connection to public peer
[error] FAIL - unable to load utp-native, utp connections will not work
[info] TCP ONLY - success!
[info] End of phase one (Public Server), moving on to phase two (Peer to Peer via DNS)
[error] Could not detect public ip / port

Searched the docs for any ports that I should open and forward from the router to my machine! Didn't find anything at all! :-(

Tried demos from hyperswarm (I understood that Dat is using that). PEER DISCOVERY WORKED, EXACTLY BETWEEN THOSE 2 MACHINES I'VE TESTED WITH DATDESKTOP!

Anything more I should do? I was abandoning any projects with IPFS when I saw that it cannot publish something to the world when behind NAT routers. I hope that DAT will do that!

Teo