@gaeel I never administered a server that I shared with others, so I just picked "random" ports below 10k - 8888, 8080, 8443, ..
my site is now on uberspace and they have a custom tool where you can ask for a port and in the background the routing and firewall is set up - and nobody else can claim it ( https://manual.uberspace.de/en/basics-ports.html )
imo document with config details is enough, I'd probably forget to use the tool if I wasn't forced to do it because of shared resources
@firstname.lastname@example.org oh, thankfully i'm the sole administrator of this server, so that's not an issue
and yeah, given everything i've read so far, it seems that just keeping a document is the way to go
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