Troubleshooting Slow or Unreachable VPS

Practical checks for network latency, CPU pressure, disk bottlenecks, and configuration errors.

1) Check reachability

Confirm the IP and port. Test from a second network to rule out local ISP or firewall issues.

2) Inspect CPU and memory pressure

High CPU or memory swaps can slow response times. Identify heavy processes and optimize.

3) Review disk usage and I/O

Full disks and high I/O wait cause timeouts. Clean logs, rotate backups, and monitor usage.

4) Validate services and ports

Ensure your web server or app is running and bound to the correct interface and port.

5) Check firewall rules

Overly strict rules can block legitimate traffic. Review UFW/iptables policies.