Let's say you're facing 404 errors on your website. To diagnose if it's a LiteSpeed or ModSecurity issue, start by checking LiteSpeed's error log. You might find entries like:
Code:
[ERROR] [client 123.456.789.10] File does not exist: /path/to/missing/file
If LiteSpeed logs show these 404 errors, it could be a server misconfiguration or a broken link issue. You can troubleshoot by verifying file paths and permissions.
Next, check ModSecurity's audit log. Look for entries like:
Code:
[client 123.456.789.10] ModSecurity: Access denied with code 403 (phase 2). Pattern match...
If ModSecurity logs show 403 errors, it suggests ModSecurity rules might be blocking access. Review your ModSecurity rules to see if they are overly restrictive.
By examining these logs, you can narrow down the problem. If you find both types of errors, you might have a combination of issues. Addressing these specific error messages will guide you toward the solutions, whether it's fixing file paths, adjusting LiteSpeed configurations, or refining ModSecurity rules.