Enable the package repository for CentOS
sudo vi /etc/yum.repos.d/plex.repo
[PlexRepo]
name=PlexRepo
baseurl=https://downloads.plex.tv/repo/rpm/$basearch/
enabled=1
gpgkey=https://downloads.plex.tv/plex-keys/PlexSign.key
gpgcheck=1
sudo yum -y install plexmediaserver
http://plex.grupopv.mx:4000/web
sudo yum -y remove plexmediaserver
sudo rm -r /var/lib/plexmediaserver/
Go to: http://fg.cuu.grupopv.mx:32500/
Account -> Server -> Settings -> Remote access
Update:
Manually specify public port = 32500
cat /var/lib/plexmediaserver/Library/Application\ Support/Plex\ Media\ Server/Logs/Plex\ Media\ Server.* | grep -iE "Using.local.file|got.skipped.for|MDE:|Content-Length.of.\/home\/plex|Play.progress.on" | more