Port 2432 (codasrv)

IANA assigns port 2432 to codasrv.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference

codasrv TCP codasrv - -

codasrv UDP codasrv - -

Linux: is anything listening on TCP 2432?

sudo ss -tlnp 'sport = :2432'

Linux: UDP 2432

sudo ss -ulnp 'sport = :2432'

Linux / macOS: which process owns the port

sudo lsof -nP -i :2432

Older Linux / BSD (net-tools)

sudo netstat -tlnp | grep ':2432 '

Windows (Command Prompt)

netstat -ano | findstr :2432

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2432 -State Listen | Select LocalAddress,OwningProcess

From another machine

nc -vz -w 5 HOST 2432

From Windows

Test-NetConnection HOST -Port 2432

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

nc -vzu -w 5 HOST 2432

ufw

sudo ufw deny 2432/tcp

iptables

sudo iptables -A INPUT -p tcp --dport 2432 -j DROP

nftables

sudo nft add rule inet filter input tcp dport 2432 drop

Windows Firewall

New-NetFirewallRule -DisplayName 'Block TCP 2432' -Direction Inbound -Protocol TCP -LocalPort 2432 -Action Block

ufw

sudo ufw deny 2432/udp

iptables

sudo iptables -A INPUT -p udp --dport 2432 -j DROP

nftables

sudo nft add rule inet filter input udp dport 2432 drop

Windows Firewall

New-NetFirewallRule -DisplayName 'Block UDP 2432' -Direction Inbound -Protocol UDP -LocalPort 2432 -Action Block

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