On the server:

# firewall-cmd --add-service=https

success

# firewall-cmd --runtime-to-permanent
success
# firewall-cmd --reload
success
# firewall-cmd --list-services

cockpit dhcpv6-client http https mqtt mqtt-tls postgresql ssh

On my desktop:

$ nmap -p 443 <IP address>
Starting Nmap 7.95 ( https://nmap.org ) at 2024-08-10 15:03 CDT
Nmap scan report for r2d2.localdomain (<IP Address>)
Host is up (0.00038s latency).

PORT    STATE  SERVICE
443/tcp closed https

Nmap done: 1 IP address (1 host up) scanned in 0.02 seconds

All other service ports that I've opened work fine, so what's up?

Thanks,

Richard