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Port 2384 (sd-request, sd-capacity)

IANA assigns port 2384 to sd-request, sd-capacity: SD-REQUEST.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
sd-request TCP SD-REQUEST - -
sd-capacity UDP SD-CAPACITY Jason McManus 2 -

Check what is listening on port 2384

Linux: is anything listening on TCP 2384?
sudo ss -tlnp 'sport = :2384'
Linux: UDP 2384
sudo ss -ulnp 'sport = :2384'
Linux / macOS: which process owns the port
sudo lsof -nP -i :2384
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':2384 '
Windows (Command Prompt)
netstat -ano | findstr :2384
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 2384 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 2384
From Windows
Test-NetConnection HOST -Port 2384
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 2384

Block port 2384 in the firewall

ufw
sudo ufw deny 2384/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 2384 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 2384 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 2384' -Direction Inbound -Protocol TCP -LocalPort 2384 -Action Block
ufw
sudo ufw deny 2384/udp
iptables
sudo iptables -A INPUT -p udp --dport 2384 -j DROP
nftables
sudo nft add rule inet filter input udp dport 2384 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 2384' -Direction Inbound -Protocol UDP -LocalPort 2384 -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.