I have problems with NetBeans connecting to Xdebug.
Not very experienced on this part.
url:
I can’t connect with telnet. (I think I should do…)
└──| telnet -d farmos 9003
Trying 192.168.10.142...
setsockopt (SO_DEBUG): Ikke tilgang
telnet: Unable to connect to remote host: Oppkobling nektes
I’m lost again… 
Which web browser you are using.
Brave
I was debugged using vscode(code editor, debugger with xdebug extention), xampp(php, MySQL only), nginx(as server) and Mozilla Firefox (browser) in windows.still It’s working.
I am using https://addons.mozilla.org/en-US/firefox/addon/xdebug-helper-for-firefox/ this extention in browser.
I haven’t used NetBeans, but for PHPStorm I have to add these additional environment variables to my docker-compose.yml:
XDEBUG_SESSION: PHPSTORM
PHP_IDE_CONFIG: serverName=localhost
This documentation page outlines everything that’s necessary for PHPStorm: Debugging | farmOS
… I have to imagine NetBeans would work similar? Maybe just need to figure out the correct value for XDEBUG_SESSION? 
For what it’s worth, with the setup documented in the link above, I do not need to add ?XDEBUG_SESSION_START to my URL strings. It “just works” automatically.
Ok, you were trying from terminal. in your screenshot ports ‘84:80’ but, your url it is 84[farmos:84]. If anything this causing problem.
Port 84 is mapped to port 80, so I don’t think that’s the problem
Ah… crap. Now I understand that host is the NetBeans pc… 
I think that was the only missing part.
Now I just have to figure out how the debugging works.
Ah! Does that mean you got it working @pat?? Are you able to set a breakpoint and stop execution?
Yes 
Had to put the host IP in the XDEBUG_CONFIG. Just didn’t realize the host was the coumputer with NetBeans installed.