I have tried to open a port on a new AL9 machine. The machine reports it is open, but using nmap from another machine (AL8.6) shows it is there but closed. $ sudo firewall-cmd --zone=public --permanent --add-service=postgresql $ sudo firewall-cmd --zone=public --permanent --add-port 5432/tcp $ sud…

Open a Port Permanently

jlehtone July 5, 2022, 2:05pm 4

OP did mention this issue in the other thread PostgreSQL v13 Installation - #12 by daBee but then dismissed the instructions that I did offer.

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