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Port 1654 (stargatealerts)

IANA assigns port 1654 to stargatealerts.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
stargatealerts TCP stargatealerts Tim Coppernoll -
stargatealerts UDP stargatealerts Tim Coppernoll -

Check what is listening on port 1654

Linux: is anything listening on TCP 1654?
sudo ss -tlnp 'sport = :1654'
Linux: UDP 1654
sudo ss -ulnp 'sport = :1654'
Linux / macOS: which process owns the port
sudo lsof -nP -i :1654
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':1654 '
Windows (Command Prompt)
netstat -ano | findstr :1654
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 1654 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 1654
From Windows
Test-NetConnection HOST -Port 1654
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 1654

Block port 1654 in the firewall

ufw
sudo ufw deny 1654/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 1654 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 1654 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 1654' -Direction Inbound -Protocol TCP -LocalPort 1654 -Action Block
ufw
sudo ufw deny 1654/udp
iptables
sudo iptables -A INPUT -p udp --dport 1654 -j DROP
nftables
sudo nft add rule inet filter input udp dport 1654 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 1654' -Direction Inbound -Protocol UDP -LocalPort 1654 -Action Block

Related ports

1652xnmp1653alphatech-lm1655dec-mbadmin1656dec-mbadmin-h

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