Port 2471 (seaodbc)

IANA assigns port 2471 to seaodbc: SeaODBC.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference

seaodbc TCP SeaODBC Adrian Hornby -

seaodbc UDP SeaODBC Adrian Hornby -

Linux: is anything listening on TCP 2471?

sudo ss -tlnp 'sport = :2471'

Linux: UDP 2471

sudo ss -ulnp 'sport = :2471'

Linux / macOS: which process owns the port

sudo lsof -nP -i :2471

Older Linux / BSD (net-tools)

sudo netstat -tlnp | grep ':2471 '

Windows (Command Prompt)

netstat -ano | findstr :2471

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2471 -State Listen | Select LocalAddress,OwningProcess

From another machine

nc -vz -w 5 HOST 2471

From Windows

Test-NetConnection HOST -Port 2471

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

nc -vzu -w 5 HOST 2471

ufw

sudo ufw deny 2471/tcp

iptables

sudo iptables -A INPUT -p tcp --dport 2471 -j DROP

nftables

sudo nft add rule inet filter input tcp dport 2471 drop

Windows Firewall

New-NetFirewallRule -DisplayName 'Block TCP 2471' -Direction Inbound -Protocol TCP -LocalPort 2471 -Action Block

ufw

sudo ufw deny 2471/udp

iptables

sudo iptables -A INPUT -p udp --dport 2471 -j DROP

nftables

sudo nft add rule inet filter input udp dport 2471 drop

Windows Firewall

New-NetFirewallRule -DisplayName 'Block UDP 2471' -Direction Inbound -Protocol UDP -LocalPort 2471 -Action Block

All port numbers · Open port checker
Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.