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Port 8380 (cruise-update)

IANA assigns port 8380 to cruise-update: Cruise UPDATE.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
cruise-update TCP Cruise UPDATE Steve Husak -
cruise-update UDP Cruise UPDATE Steve Husak -

Check what is listening on port 8380

Linux: is anything listening on TCP 8380?
sudo ss -tlnp 'sport = :8380'
Linux: UDP 8380
sudo ss -ulnp 'sport = :8380'
Linux / macOS: which process owns the port
sudo lsof -nP -i :8380
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':8380 '
Windows (Command Prompt)
netstat -ano | findstr :8380
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 8380 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 8380
From Windows
Test-NetConnection HOST -Port 8380
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 8380

Block port 8380 in the firewall

ufw
sudo ufw deny 8380/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 8380 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 8380 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 8380' -Direction Inbound -Protocol TCP -LocalPort 8380 -Action Block
ufw
sudo ufw deny 8380/udp
iptables
sudo iptables -A INPUT -p udp --dport 8380 -j DROP
nftables
sudo nft add rule inet filter input udp dport 8380 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 8380' -Direction Inbound -Protocol UDP -LocalPort 8380 -Action Block

Related ports

8378cruise-config8379cruise-diags8383m2mservices8384marathontp

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