Port 5302 (hacl-cfg)

IANA assigns port 5302 to hacl-cfg: HA cluster configuration.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference

hacl-cfg TCP HA cluster configuration Eric Soderberg 2, Edward Yim -

hacl-cfg UDP HA cluster configuration Eric Soderberg 2, Edward Yim -

Linux: is anything listening on TCP 5302?

sudo ss -tlnp 'sport = :5302'

Linux: UDP 5302

sudo ss -ulnp 'sport = :5302'

Linux / macOS: which process owns the port

sudo lsof -nP -i :5302

Older Linux / BSD (net-tools)

sudo netstat -tlnp | grep ':5302 '

Windows (Command Prompt)

netstat -ano | findstr :5302

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 5302 -State Listen | Select LocalAddress,OwningProcess

From another machine

nc -vz -w 5 HOST 5302

From Windows

Test-NetConnection HOST -Port 5302

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

nc -vzu -w 5 HOST 5302

ufw

sudo ufw deny 5302/tcp

iptables

sudo iptables -A INPUT -p tcp --dport 5302 -j DROP

nftables

sudo nft add rule inet filter input tcp dport 5302 drop

Windows Firewall

New-NetFirewallRule -DisplayName 'Block TCP 5302' -Direction Inbound -Protocol TCP -LocalPort 5302 -Action Block

ufw

sudo ufw deny 5302/udp

iptables

sudo iptables -A INPUT -p udp --dport 5302 -j DROP

nftables

sudo nft add rule inet filter input udp dport 5302 drop

Windows Firewall

New-NetFirewallRule -DisplayName 'Block UDP 5302' -Direction Inbound -Protocol UDP -LocalPort 5302 -Action Block

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