Port 3018 (srvc-registry, srvc_registry)

IANA assigns port 3018 to srvc-registry, srvc_registry: Service Registry IANA assigned this well-formed service name as a replacement for "srvc_registry"..

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference

srvc-registry TCP Service Registry IANA assigned this well-formed service name as a replacement for "srvc_registry". Mark Killgore -

srvc_registry TCP Service Registry
This entry is an alias to "srvc-registry". This entry is now historic, not usable for use with many common service discovery mechanisms. Mark Killgore -

srvc-registry UDP Service Registry IANA assigned this well-formed service name as a replacement for "srvc_registry". Mark Killgore -

srvc_registry UDP Service Registry
This entry is an alias to "srvc-registry". This entry is now historic, not usable for use with many common service discovery mechanisms. Mark Killgore -

Check what is listening on port 3018

Linux: is anything listening on TCP 3018?

sudo ss -tlnp 'sport = :3018'

Linux: UDP 3018

sudo ss -ulnp 'sport = :3018'

Linux / macOS: which process owns the port

sudo lsof -nP -i :3018

Older Linux / BSD (net-tools)

sudo netstat -tlnp | grep ':3018 '

Windows (Command Prompt)

netstat -ano | findstr :3018

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 3018 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine

nc -vz -w 5 HOST 3018

From Windows

Test-NetConnection HOST -Port 3018

UDP probe (no reply does not prove it is closed)

nc -vzu -w 5 HOST 3018

Block port 3018 in the firewall

ufw

sudo ufw deny 3018/tcp

iptables

sudo iptables -A INPUT -p tcp --dport 3018 -j DROP

nftables

sudo nft add rule inet filter input tcp dport 3018 drop

Windows Firewall

New-NetFirewallRule -DisplayName 'Block TCP 3018' -Direction Inbound -Protocol TCP -LocalPort 3018 -Action Block

ufw

sudo ufw deny 3018/udp