Introduction

SSL handshake fails when server requires client certificate not provided. This guide provides step-by-step diagnosis and resolution.

Symptoms

Typical error output:

bash
Error: Operation failed
Check logs for details
Review configuration and retry

Common Causes

  1. 1.Configuration misconfigured or missing
  2. 2.Resource limits or quotas exceeded
  3. 3.Network or connectivity issues
  4. 4.Dependency or version incompatibility

Step-by-Step Fix

Step 1: Check Current State

bash
# Check current status
systemctl status <service>
journalctl -u <service> -n 50
# Review logs
tail -f /var/log/<service>/error.log

Step 2: Identify Root Cause

bash
# Check service logs
journalctl -u <service> -f
# Verify configuration
<service> --validate-config
# Check network
netstat -tulpn | grep <port>

Step 3: Apply Primary Fix

bash
# Primary fix
# Verify configuration
cat /etc/<service>/config.yaml
# Restart service
systemctl restart <service>
# Verify status
systemctl status <service>

Step 4: Apply Alternative Fix

bash
# Alternative fix
# Check dependencies
systemctl list-dependencies <service>
# Enable debug mode
export DEBUG=1
# Review configuration
grep -r "error" /var/log/<service>/

Step 5: Verify the Fix

bash
# Verify fix
systemctl status <service>
curl -I http://localhost:<port>/health
# All checks should pass

Common Pitfalls

  • Not checking logs before making changes
  • Changing multiple settings at once
  • Forgetting to restart service after config change
  • Not backing up configuration before changes

Best Practices

  • Monitor service health continuously
  • Keep configuration in version control
  • Document all changes
  • Test changes in staging first
  • Service Not Starting
  • Performance Degradation
  • Configuration Error
  • Connection Timeout