HTTPfy

Port 2364 (oi-2000)

IANA assigns port 2364 to oi-2000: OI-2000.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
oi-2000 TCP OI-2000 Software Horizons In -
oi-2000 UDP OI-2000 Software Horizons In -

Check what is listening on port 2364

Linux: is anything listening on TCP 2364?
sudo ss -tlnp 'sport = :2364'
Linux: UDP 2364
sudo ss -ulnp 'sport = :2364'
Linux / macOS: which process owns the port
sudo lsof -nP -i :2364
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':2364 '
Windows (Command Prompt)
netstat -ano | findstr :2364
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 2364 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 2364
From Windows
Test-NetConnection HOST -Port 2364
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 2364

Block port 2364 in the firewall

ufw
sudo ufw deny 2364/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 2364 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 2364 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 2364' -Direction Inbound -Protocol TCP -LocalPort 2364 -Action Block
ufw
sudo ufw deny 2364/udp
iptables
sudo iptables -A INPUT -p udp --dport 2364 -j DROP
nftables
sudo nft add rule inet filter input udp dport 2364 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 2364' -Direction Inbound -Protocol UDP -LocalPort 2364 -Action Block

Related ports

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