What firewall ports need to be open to allow access to external git repositories?

What firewall port(s) need to be open to allow access to external git repositories?

From serverfault markdorison

• git work on 9481 so if you check on

  netstat -ntpl|grep -i 9418

  then open 9418 it will work

  From Rajat

• Specifically TCP 9418, no need for UDP.

  From Chopper3