IANA assigns port 4567 to tram: TRAM.
sudo ss -tlnp 'sport = :4567'sudo ss -ulnp 'sport = :4567'sudo lsof -nP -i :4567sudo netstat -tlnp | grep ':4567 'netstat -ano | findstr :4567Get-NetTCPConnection -LocalPort 4567 -State Listen | Select LocalAddress,OwningProcessnc -vz -w 5 HOST 4567Test-NetConnection HOST -Port 4567nc -vzu -w 5 HOST 4567sudo ufw deny 4567/tcpsudo iptables -A INPUT -p tcp --dport 4567 -j DROPsudo nft add rule inet filter input tcp dport 4567 dropNew-NetFirewallRule -DisplayName 'Block TCP 4567' -Direction Inbound -Protocol TCP -LocalPort 4567 -Action Blocksudo ufw deny 4567/udpsudo iptables -A INPUT -p udp --dport 4567 -j DROPsudo nft add rule inet filter input udp dport 4567 dropNew-NetFirewallRule -DisplayName 'Block UDP 4567' -Direction Inbound -Protocol UDP -LocalPort 4567 -Action BlockAll port numbers · Open port checker
Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.