HTTPfy

Port 470 (scx-proxy)

IANA assigns port 470 to scx-proxy.

Well-known (system) port, 0-1023 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
scx-proxy TCP scx-proxy Scott Narveson -
scx-proxy UDP scx-proxy Scott Narveson -

Check what is listening on port 470

Linux: is anything listening on TCP 470?
sudo ss -tlnp 'sport = :470'
Linux: UDP 470
sudo ss -ulnp 'sport = :470'
Linux / macOS: which process owns the port
sudo lsof -nP -i :470
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':470 '
Windows (Command Prompt)
netstat -ano | findstr :470
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 470 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 470
From Windows
Test-NetConnection HOST -Port 470
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 470

Block port 470 in the firewall

ufw
sudo ufw deny 470/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 470 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 470 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 470' -Direction Inbound -Protocol TCP -LocalPort 470 -Action Block
ufw
sudo ufw deny 470/udp
iptables
sudo iptables -A INPUT -p udp --dport 470 -j DROP
nftables
sudo nft add rule inet filter input udp dport 470 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 470' -Direction Inbound -Protocol UDP -LocalPort 470 -Action Block

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