Apache配置SSL后出现Too many redirects错误求助

Let's break down why you're hitting this redirect loop and fix it step by step:

1. First, Check for .htaccess Conflicts #

Your www.website.com HTTPS VirtualHost has AllowOverride All enabled, which means any redirect rules in /var/www/html/.htaccess can clash with your VirtualHost-level redirects. For example, if your .htaccess has a rule that redirects www.website.com back to website.com, that creates an infinite loop.

• Open /var/www/html/.htaccess and look for lines like:

  RewriteCond %{HTTP_HOST} ^www\.website\.com$ [NC]
  RewriteRule ^(.*)$ https://website.com/$1 [R=301,L]
  

• If you find such rules, either comment them out (add # at the start) or delete them entirely.

2. Simplify & Clean Up Your VirtualHost Configs #

Your current config works but can be streamlined to avoid ambiguity. Here's the optimized version:

Non-HTTPS (Port 80) Config #

Combine both domain entries into one VirtualHost to handle all HTTP traffic in a single rule:

<VirtualHost *:80>
 ServerAdmin contact@website.com
 ServerName website.com
 ServerAlias www.website.com
 Redirect permanent / https://www.website.com/
</VirtualHost>

HTTPS (Port 443) Config #

Keep the redirect for website.com to www.website.com, and ensure the www entry points correctly to your document root:

<IfModule mod_ssl.c>
 <VirtualHost *:443>
 ServerAdmin contact@website.com
 ServerName website.com
 Redirect permanent / https://www.website.com/
 SSLCertificateFile /etc/letsencrypt/live/website.com/fullchain.pem
 SSLCertificateKeyFile /etc/letsencrypt/live/website.com/privkey.pem
 Include /etc/letsencrypt/options-ssl-apache.conf
 </VirtualHost>

 <VirtualHost *:443>
 ServerAdmin contact@website.com
 ServerName www.website.com
 DocumentRoot /var/www/html
 <Directory /var/www/html>
 Options FollowSymLinks MultiViews
 AllowOverride All
 Order allow,deny
 allow from all
 </Directory>
 SSLCertificateFile /etc/letsencrypt/live/website.com/fullchain.pem
 SSLCertificateKeyFile /etc/letsencrypt/live/website.com/privkey.pem
 Include /etc/letsencrypt/options-ssl-apache.conf
 </VirtualHost>
</IfModule>

3. Verify Your SSL Certificate Covers Both Domains #

A common hidden cause of redirect loops is when your SSL certificate only covers website.com (not www.website.com). When browsers try to load https://www.website.com, they hit a certificate error, which can trigger unexpected redirect behavior.

• Check your certificate's domain list with this command:

  certbot certificates
  

• Look for a line like Domains: website.com www.website.com. If www.website.com is missing, reissue the certificate to include both domains:

  certbot certonly --apache -d website.com -d www.website.com
  

4. Test & Restart Apache #

Always validate your config before restarting to avoid downtime:

sudo apache2ctl configtest

If you see Syntax OK, restart Apache to apply changes:

sudo systemctl restart apache2

After these steps, all HTTP requests (with or without www) should redirect to https://www.website.com, and HTTPS requests to website.com will also land on the www version without loops.

内容的提问来源于stack exchange，提问作者Zemou