single server - multiple games/maps

[lupinehorror]

hi all.
i run factorio (multiplayer) on a dedicated server (debian - 32GB RAM).
have only ever run one map on it but am thinking about creating another using the space exploration mod.
this may be something obvious that i've missed but a bit of searching and a look at the wiki hasn't helped any.
run second map on a different port?
didn't post this in the multiplayer thread as that seems to be more geared towards people sharing their servers etc.
would appreciate any pointers you can give me.
cheers.

[lupinehorror]

well i went down the run another instance on a different port route.
edited config/config.ini on my existing install and uncommented the port to
port=34915
uploaded another version of the headless server files to /opt in a different directory (factorio_space in this instance), created a new world and edited config/config.ini to read
port=34916