Server Configuration Issues (Apache/Nginx)

Common Problems

• 403 Forbidden errors (permission issues).
• 502 Bad Gateway (proxy errors).
• Rewrite rules not working.

How to Fix:

1. Apache: Fix 403 Forbidden

Check directory permissions and .htaccess:

  AllowOverride All
  Require all granted

    

2. Nginx: Resolve 502 Bad Gateway

Increase proxy timeouts in /etc/nginx/conf.d/default.conf:

proxy_connect_timeout 600;
proxy_send_timeout 600;
proxy_read_timeout 600;
    

3. Test Configuration Syntax

sudo apachectl configtest  # Apache
sudo nginx -t              # Nginx
    

4. Redirect HTTP to HTTPS (Nginx)

server {
  listen 80;
  server_name example.com;
  return 301 https://$host$request_uri;
}
    

Prevention Tips

• Use Apache Docs or Nginx Docs for reference.
• Backup config files before making changes.
• Use sudo carefully to avoid permission mishaps.

sudo systemctl restart apache2  # Apache
sudo systemctl restart nginx    # Nginx