IANA assigns port 3019 to resource-mgr, resource_mgr: Resource Manager IANA assigned this well-formed service name as a replacement for "resource_mgr"..
sudo ss -tlnp 'sport = :3019'sudo ss -ulnp 'sport = :3019'sudo lsof -nP -i :3019sudo netstat -tlnp | grep ':3019 'netstat -ano | findstr :3019Get-NetTCPConnection -LocalPort 3019 -State Listen | Select LocalAddress,OwningProcessnc -vz -w 5 HOST 3019Test-NetConnection HOST -Port 3019nc -vzu -w 5 HOST 3019sudo ufw deny 3019/tcpsudo iptables -A INPUT -p tcp --dport 3019 -j DROPsudo nft add rule inet filter input tcp dport 3019 dropNew-NetFirewallRule -DisplayName 'Block TCP 3019' -Direction Inbound -Protocol TCP -LocalPort 3019 -Action Blocksudo ufw deny 3019/udpsudo iptables -A INPUT -p udp --dport 3019 -j DROPsudo nft add rule inet filter input udp dport 3019 dropNew-NetFirewallRule -DisplayName 'Block UDP 3019' -Direction Inbound -Protocol UDP -LocalPort 3019 -Action BlockAll port numbers · Open port checker
Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.