Port 3148 (nm-game-admin)

IANA assigns port 3148 to nm-game-admin: NetMike Game Administrator.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference

nm-game-admin TCP NetMike Game Administrator - -

nm-game-admin UDP NetMike Game Administrator - -

Linux: is anything listening on TCP 3148?

sudo ss -tlnp 'sport = :3148'

Linux: UDP 3148

sudo ss -ulnp 'sport = :3148'

Linux / macOS: which process owns the port

sudo lsof -nP -i :3148

Older Linux / BSD (net-tools)

sudo netstat -tlnp | grep ':3148 '

Windows (Command Prompt)

netstat -ano | findstr :3148

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 3148 -State Listen | Select LocalAddress,OwningProcess

From another machine

nc -vz -w 5 HOST 3148

From Windows

Test-NetConnection HOST -Port 3148

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

nc -vzu -w 5 HOST 3148

ufw

sudo ufw deny 3148/tcp

iptables

sudo iptables -A INPUT -p tcp --dport 3148 -j DROP

nftables

sudo nft add rule inet filter input tcp dport 3148 drop

Windows Firewall

New-NetFirewallRule -DisplayName 'Block TCP 3148' -Direction Inbound -Protocol TCP -LocalPort 3148 -Action Block

ufw

sudo ufw deny 3148/udp

iptables

sudo iptables -A INPUT -p udp --dport 3148 -j DROP

nftables

sudo nft add rule inet filter input udp dport 3148 drop

Windows Firewall

New-NetFirewallRule -DisplayName 'Block UDP 3148' -Direction Inbound -Protocol UDP -LocalPort 3148 -Action Block

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Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.