My relays are connecting to the other relays without any problem, and I can sync all blocks. But I have not opened any ports on my relay servers.
I assume this is because my outbound traffic is unblocked, like it normally is for a pc visiting a website.
But would this be any problem?
Are there ports that MUST be opened?
Can I just assume if I can connect to other relays it should be fine?
Or is this some kind of security risk?