year ago, I configured my nginx reverse proxy to pass all requests on port 8080 to docker container running certbot in standalone mode and configured to listen on port 8080. Until “now” (don’t know exact date when it happened), it worked well, but now it does not work and documentation says, that for http-01 challenge I need to use port 80 only (in past, I swear, it wasn’t). Could you please confirm my finding and provide me with some more info about that change (why, when, etc.)?
Thank you in advance
P.S.: I really dislike changes like that (same when certbot changed renewal mechanism, so I can’t obtain new cert by renew using modified renew conf file), so I am asking, if it is possible to signup some info mailing list or something like that?