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Port 9080 (glrpc)

IANA assigns port 9080 to glrpc: Groove GLRPC.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
glrpc TCP Groove GLRPC Adrian Popescu -
glrpc UDP Groove GLRPC Adrian Popescu -

Registry dates for this port: registered 2002-09.

Check what is listening on port 9080

Linux: is anything listening on TCP 9080?
sudo ss -tlnp 'sport = :9080'
Linux: UDP 9080
sudo ss -ulnp 'sport = :9080'
Linux / macOS: which process owns the port
sudo lsof -nP -i :9080
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':9080 '
Windows (Command Prompt)
netstat -ano | findstr :9080
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 9080 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 9080
From Windows
Test-NetConnection HOST -Port 9080
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 9080

Block port 9080 in the firewall

ufw
sudo ufw deny 9080/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 9080 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 9080 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 9080' -Direction Inbound -Protocol TCP -LocalPort 9080 -Action Block
ufw
sudo ufw deny 9080/udp
iptables
sudo iptables -A INPUT -p udp --dport 9080 -j DROP
nftables
sudo nft add rule inet filter input udp dport 9080 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 9080' -Direction Inbound -Protocol UDP -LocalPort 9080 -Action Block

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