Below are the default ports used by the EvoStream Media Server. They can all be modified in the config.lua file.
RTMP: 1935
RTSP: 5544
HLS, HDS, MSS: 80
MPEG-TS can only be pushed/pulled, the port is defined in the pushStream command.
A note on RTSP: RTSP will establish 4 other connections which are negotiated during the RTSP handshake. These can be UDP or TCP. This is not a problem for most firewalls, but some advanced firewalls will not allow these side channels to be created.