PORT 8500 / TCPInfrastructure & CloudExposure Risk: High
Port 8500: HashiCorp Consul — Consul Service Discovery HTTP API & Web UI
Used by HashiCorp Consul for service mesh catalog queries, KV store, and health checks.
Default Service
HashiCorp Consul
Process: consul
Transport Protocol
TCP
IANA Registered Port 8500
Docker Port Flag
-p 8500:8500
Container to Host Mapping
How to Check & Kill Process on Port 8500 (EADDRINUSE Fix)
macOS & Linux (lsof / kill)
# Find process using port 8500 sudo lsof -i :8500 # Instantly kill process on port 8500 lsof -ti:8500 | xargs kill -9
Windows (PowerShell & CMD)
# Find PID listening on port 8500 netstat -ano | findstr :8500 # Force kill by PID taskkill /PID <PID_NUMBER> /F
Cross-Platform Node.js One-Liner
# Kill port 8500 via npx npx kill-port 8500 # Or diagnose via Castov CLI npx castov fix "EADDRINUSE :::8500"
Linux Firewall (UFW) & Connectivity Test
# Test if port 8500 is reachable nc -zv localhost 8500 # Allow or deny port 8500 in UFW sudo ufw allow 8500/tcp
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Frequently Asked Questions about Port 8500
What is Port 8500 used for?
Port 8500 is the standard network port for HashiCorp Consul (Consul Service Discovery HTTP API & Web UI) operating over TCP. The typical system daemon or process is consul.
How do I kill a process running on Port 8500 (EADDRINUSE)?
On macOS and Linux, run: lsof -ti:8500 | xargs kill -9 (or npx kill-port 8500). On Windows PowerShell/CMD, run: netstat -ano | findstr :8500 and then taskkill /PID <PID> /F.
Is it safe to expose Port 8500 to the internet?
Port 8500 has a High security risk profile. Used by HashiCorp Consul for service mesh catalog queries, KV store, and health checks.