IANA assigns port 2366 to qip-login.
sudo ss -tlnp 'sport = :2366'sudo ss -ulnp 'sport = :2366'sudo lsof -nP -i :2366sudo netstat -tlnp | grep ':2366 'netstat -ano | findstr :2366Get-NetTCPConnection -LocalPort 2366 -State Listen | Select LocalAddress,OwningProcessnc -vz -w 5 HOST 2366Test-NetConnection HOST -Port 2366nc -vzu -w 5 HOST 2366sudo ufw deny 2366/tcpsudo iptables -A INPUT -p tcp --dport 2366 -j DROPsudo nft add rule inet filter input tcp dport 2366 dropNew-NetFirewallRule -DisplayName 'Block TCP 2366' -Direction Inbound -Protocol TCP -LocalPort 2366 -Action Blocksudo ufw deny 2366/udpsudo iptables -A INPUT -p udp --dport 2366 -j DROPsudo nft add rule inet filter input udp dport 2366 dropNew-NetFirewallRule -DisplayName 'Block UDP 2366' -Direction Inbound -Protocol UDP -LocalPort 2366 -Action BlockAll port numbers · Open port checker
Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.