why are there two seemingly identical sites hosting the same content but with slightly different URLs?

https://forum.puredata.info/
https://forum.pdpatchrepo.info/

I get confused every time I go look up my auth stuff for this forum, because I have an account registered for forum.pdpatchrepo.info, but not its identical (evil?) twin forum.puredata.info.

@Ulrike I cannot log in to the (evil ) one .. so not identical, but it seems to be a carbon copy otherwise.
I know that @Eeight has been thinking about updating the forum as the NodeBB version is ancient.
Maybe he has cloned it for testing?

forum.puredata.info is a subdomain of puredata.info and puredata.info is the Pure data info site I think run by Miller, so I think we can forget the "evil" moniker.
But unsure and will have to await a response from @Eeight
David.

nslookup returns the same IP address for both--is that meaningful? If so, it's weird that they require different credentials.

@jameslo Same IP but different domain.... I think it might be a NodeBB server backup copy with login disallowed.
David.

Heyo! That's been long written in ROM, not available in my RAM for sure... I think it was because the initial forum was also hosted on puredata.info, I simply configured the webserver to accept both domain. Same site, same everything. If it works don't touch anything has been lately my favorite quote.

Cheers~

@EEight Ahha..... so I cannot log in because I am already logged in through the other domain.
Makes sense now..!.
David.

Mystery solved!
putting a matching note in my login notes that says "don't worry about it"

Cheers