Hi all, I have selfhosted various services on my server via docker such as the whole *rr suite, plex, jellyfin, pihole, nginx, qbittorrent.

Out of curiosity I ran an nmap on the server IP but I see a lot less ports than I actually use.

With nmap 192.168.1.180 i see:

• 53/tcp open domain
• 80/tcp open http
• 81/tcp open hosts2-ns [this is nginx]
• 443/tcp open https
• 6881/tcp open bittorrent-tracker
• 8080/tcp open http-proxy [this is pihole]
• 9091/tcp open xmltec-xmlmail [this is qbittorrent]

Why don’t I see all the ports for all the services?