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Port 36001 (allpeers)

IANA assigns port 36001 to allpeers: AllPeers Network.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
allpeers TCP AllPeers Network Cedric Maloux -
allpeers UDP AllPeers Network Cedric Maloux -

Registry dates for this port: registered 2007-04.

Check what is listening on port 36001

Linux: is anything listening on TCP 36001?
sudo ss -tlnp 'sport = :36001'
Linux: UDP 36001
sudo ss -ulnp 'sport = :36001'
Linux / macOS: which process owns the port
sudo lsof -nP -i :36001
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':36001 '
Windows (Command Prompt)
netstat -ano | findstr :36001
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 36001 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 36001
From Windows
Test-NetConnection HOST -Port 36001
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 36001

Block port 36001 in the firewall

ufw
sudo ufw deny 36001/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 36001 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 36001 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 36001' -Direction Inbound -Protocol TCP -LocalPort 36001 -Action Block
ufw
sudo ufw deny 36001/udp
iptables
sudo iptables -A INPUT -p udp --dport 36001 -j DROP
nftables
sudo nft add rule inet filter input udp dport 36001 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 36001' -Direction Inbound -Protocol UDP -LocalPort 36001 -Action Block

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