IANA assigns port 1409 to here-lm: Here License Manager.
sudo ss -tlnp 'sport = :1409'sudo ss -ulnp 'sport = :1409'sudo lsof -nP -i :1409sudo netstat -tlnp | grep ':1409 'netstat -ano | findstr :1409Get-NetTCPConnection -LocalPort 1409 -State Listen | Select LocalAddress,OwningProcessnc -vz -w 5 HOST 1409Test-NetConnection HOST -Port 1409nc -vzu -w 5 HOST 1409sudo ufw deny 1409/tcpsudo iptables -A INPUT -p tcp --dport 1409 -j DROPsudo nft add rule inet filter input tcp dport 1409 dropNew-NetFirewallRule -DisplayName 'Block TCP 1409' -Direction Inbound -Protocol TCP -LocalPort 1409 -Action Blocksudo ufw deny 1409/udpsudo iptables -A INPUT -p udp --dport 1409 -j DROPsudo nft add rule inet filter input udp dport 1409 dropNew-NetFirewallRule -DisplayName 'Block UDP 1409' -Direction Inbound -Protocol UDP -LocalPort 1409 -Action BlockAll port numbers · Open port checker
Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.