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Port 9008 (ogs-server)

IANA assigns port 9008 to ogs-server: Open Grid Services Server.

Registered (user) port, 1024-49151 TCP

IANA assignment

Service nameProtoDescriptionAssigneeReference
ogs-server TCP Open Grid Services Server Gareth Nelson 2 -

Registry dates for this port: registered 2008-08-22.

Check what is listening on port 9008

Linux: is anything listening on TCP 9008?
sudo ss -tlnp 'sport = :9008'
Linux / macOS: which process owns the port
sudo lsof -nP -i :9008
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':9008 '
Windows (Command Prompt)
netstat -ano | findstr :9008
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 9008 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 9008
From Windows
Test-NetConnection HOST -Port 9008

Block port 9008 in the firewall

ufw
sudo ufw deny 9008/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 9008 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 9008 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 9008' -Direction Inbound -Protocol TCP -LocalPort 9008 -Action Block

Related ports

9005golem9007ogs-client9009pichat9010sdr

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