IANA assigns port 1274 to t1distproc.
sudo ss -tlnp 'sport = :1274'sudo ss -ulnp 'sport = :1274'sudo lsof -nP -i :1274sudo netstat -tlnp | grep ':1274 'netstat -ano | findstr :1274Get-NetTCPConnection -LocalPort 1274 -State Listen | Select LocalAddress,OwningProcessnc -vz -w 5 HOST 1274Test-NetConnection HOST -Port 1274nc -vzu -w 5 HOST 1274sudo ufw deny 1274/tcpsudo iptables -A INPUT -p tcp --dport 1274 -j DROPsudo nft add rule inet filter input tcp dport 1274 dropNew-NetFirewallRule -DisplayName 'Block TCP 1274' -Direction Inbound -Protocol TCP -LocalPort 1274 -Action Blocksudo ufw deny 1274/udpsudo iptables -A INPUT -p udp --dport 1274 -j DROPsudo nft add rule inet filter input udp dport 1274 dropNew-NetFirewallRule -DisplayName 'Block UDP 1274' -Direction Inbound -Protocol UDP -LocalPort 1274 -Action BlockAll port numbers · Open port checker
Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.