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Port 5814 (spt-automation)

IANA assigns port 5814 to spt-automation: Support Automation.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
spt-automation TCP Support Automation Joshua Hawkins -
spt-automation UDP Support Automation Joshua Hawkins -

Registry dates for this port: registered 2003-11.

Check what is listening on port 5814

Linux: is anything listening on TCP 5814?
sudo ss -tlnp 'sport = :5814'
Linux: UDP 5814
sudo ss -ulnp 'sport = :5814'
Linux / macOS: which process owns the port
sudo lsof -nP -i :5814
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':5814 '
Windows (Command Prompt)
netstat -ano | findstr :5814
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 5814 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 5814
From Windows
Test-NetConnection HOST -Port 5814
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 5814

Block port 5814 in the firewall

ufw
sudo ufw deny 5814/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 5814 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 5814 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 5814' -Direction Inbound -Protocol TCP -LocalPort 5814 -Action Block
ufw
sudo ufw deny 5814/udp
iptables
sudo iptables -A INPUT -p udp --dport 5814 -j DROP
nftables
sudo nft add rule inet filter input udp dport 5814 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 5814' -Direction Inbound -Protocol UDP -LocalPort 5814 -Action Block

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