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Port 4362 (afore-vdp-disc)

IANA assigns port 4362 to afore-vdp-disc: AFORE vNode Discovery protocol.

Registered (user) port, 1024-49151 UDP

Port 4362 is normally used over UDP; the checker tests TCP only, so a "filtered" result does not mean the UDP service is down.

IANA assignment

Service nameProtoDescriptionAssigneeReference
afore-vdp-disc UDP AFORE vNode Discovery protocol Michael Richardson -

Registry dates for this port: registered 2011-02-08.

Check what is listening on port 4362

Linux: UDP 4362
sudo ss -ulnp 'sport = :4362'
Linux / macOS: which process owns the port
sudo lsof -nP -i :4362
Windows (Command Prompt)
netstat -ano | findstr :4362
Windows (PowerShell)
Get-NetUDPEndpoint -LocalPort 4362

Test it from outside

UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 4362

Block port 4362 in the firewall

ufw
sudo ufw deny 4362/udp
iptables
sudo iptables -A INPUT -p udp --dport 4362 -j DROP
nftables
sudo nft add rule inet filter input udp dport 4362 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 4362' -Direction Inbound -Protocol UDP -LocalPort 4362 -Action Block

Related ports

4360matrix-vnet, matrix_vnet4361nacnl4366shadowstream4368wxbrief

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