IANA assigns port 1359 to ftsrv: FTSRV.
sudo ss -tlnp 'sport = :1359'sudo ss -ulnp 'sport = :1359'sudo lsof -nP -i :1359sudo netstat -tlnp | grep ':1359 'netstat -ano | findstr :1359Get-NetTCPConnection -LocalPort 1359 -State Listen | Select LocalAddress,OwningProcessnc -vz -w 5 HOST 1359Test-NetConnection HOST -Port 1359nc -vzu -w 5 HOST 1359sudo ufw deny 1359/tcpsudo iptables -A INPUT -p tcp --dport 1359 -j DROPsudo nft add rule inet filter input tcp dport 1359 dropNew-NetFirewallRule -DisplayName 'Block TCP 1359' -Direction Inbound -Protocol TCP -LocalPort 1359 -Action Blocksudo ufw deny 1359/udpsudo iptables -A INPUT -p udp --dport 1359 -j DROPsudo nft add rule inet filter input udp dport 1359 dropNew-NetFirewallRule -DisplayName 'Block UDP 1359' -Direction Inbound -Protocol UDP -LocalPort 1359 -Action BlockAll port numbers · Open port checker
Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.