Port 9340 (gribi)

IANA assigns port 9340 to gribi: gRPC Routing Information Base Interface.

Registered (user) port, 1024-49151 TCP

IANA assignment

Service nameProtoDescriptionAssigneeReference

gribi TCP gRPC Routing Information Base Interface Google Networking -

Registry dates for this port: registered 2022-03-29.

Linux: is anything listening on TCP 9340?

sudo ss -tlnp 'sport = :9340'

Linux / macOS: which process owns the port

sudo lsof -nP -i :9340

Older Linux / BSD (net-tools)

sudo netstat -tlnp | grep ':9340 '

Windows (Command Prompt)

netstat -ano | findstr :9340

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 9340 -State Listen | Select LocalAddress,OwningProcess

From another machine

nc -vz -w 5 HOST 9340

From Windows

Test-NetConnection HOST -Port 9340

ufw

sudo ufw deny 9340/tcp

iptables

sudo iptables -A INPUT -p tcp --dport 9340 -j DROP

nftables

sudo nft add rule inet filter input tcp dport 9340 drop

Windows Firewall

New-NetFirewallRule -DisplayName 'Block TCP 9340' -Direction Inbound -Protocol TCP -LocalPort 9340 -Action Block

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Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.