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Port 9007 (ogs-client)

IANA assigns port 9007 to ogs-client: Open Grid Services Client.

Registered (user) port, 1024-49151 UDP

Port 9007 is normally used over UDP; the checker tests TCP only, so a "filtered" result does not mean the UDP service is down.

IANA assignment

Service nameProtoDescriptionAssigneeReference
ogs-client UDP Open Grid Services Client Gareth Nelson 2 -

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

Check what is listening on port 9007

Linux: UDP 9007
sudo ss -ulnp 'sport = :9007'
Linux / macOS: which process owns the port
sudo lsof -nP -i :9007
Windows (Command Prompt)
netstat -ano | findstr :9007
Windows (PowerShell)
Get-NetUDPEndpoint -LocalPort 9007

Test it from outside

UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 9007

Block port 9007 in the firewall

ufw
sudo ufw deny 9007/udp
iptables
sudo iptables -A INPUT -p udp --dport 9007 -j DROP
nftables
sudo nft add rule inet filter input udp dport 9007 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 9007' -Direction Inbound -Protocol UDP -LocalPort 9007 -Action Block

Related ports

9002dynamid9005golem9008ogs-server9009pichat

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