IANA assigns port 2165 to x-bone-api: X-Bone API.
sudo ss -tlnp 'sport = :2165'sudo ss -ulnp 'sport = :2165'sudo lsof -nP -i :2165sudo netstat -tlnp | grep ':2165 'netstat -ano | findstr :2165Get-NetTCPConnection -LocalPort 2165 -State Listen | Select LocalAddress,OwningProcessnc -vz -w 5 HOST 2165Test-NetConnection HOST -Port 2165nc -vzu -w 5 HOST 2165sudo ufw deny 2165/tcpsudo iptables -A INPUT -p tcp --dport 2165 -j DROPsudo nft add rule inet filter input tcp dport 2165 dropNew-NetFirewallRule -DisplayName 'Block TCP 2165' -Direction Inbound -Protocol TCP -LocalPort 2165 -Action Blocksudo ufw deny 2165/udpsudo iptables -A INPUT -p udp --dport 2165 -j DROPsudo nft add rule inet filter input udp dport 2165 dropNew-NetFirewallRule -DisplayName 'Block UDP 2165' -Direction Inbound -Protocol UDP -LocalPort 2165 -Action BlockAll port numbers · Open port checker
Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.