Hey there, let's get that annoying search 404 issue sorted out quickly! From your example, it looks like when users initiate a search from your /blog/ path, the generated URL (http://example.com/blog/?s=searchterm) isn't pointing to the correct WordPress search endpoint, which lives at the root (http://example.com/?s=searchterm). Here's how to fix it with Nginx rewrite rules:

Step 1: Edit Your Nginx Site Configuration #

First, open up your Nginx site config file (usually located at /etc/nginx/sites-available/your-domain.conf or similar). Look for the server block that handles your domain.

Step 2: Add the Rewrite Rule #

Add one of these rules inside your server block (depending on whether you want an internal rewrite or a visible redirect):

Option 1: Internal Rewrite (URL stays the same for users) #

This rule will silently route the /blog/?s=... request to the root search endpoint without changing the URL in the user's browser:

# Route /blog/ search requests to root WordPress search
rewrite ^/blog/?s=(.*)$ /?s=$1 last;

Option 2: 301 Permanent Redirect (URL changes to root) #

If you want to permanently redirect users to the root search URL (good for SEO), use this instead:

# Redirect /blog/ search requests to root WordPress search (301 permanent)
rewrite ^/blog/?s=(.*)$ /?s=$1 permanent;

What do these parts mean?

• ^/blog/?s=(.*)$: Matches URLs starting with /blog/ (the ? makes the trailing slash optional) followed by the search parameter s=. The (.*) captures the actual search term.
• /s=$1: Rewrites/redirects to the root search URL, where $1 inserts the captured search term.
• last: Tells Nginx to stop processing rules here and re-match the new URL against the config.
• permanent: Sends a 301 redirect response, which tells browsers and search engines to update their links.

Step 3: Verify WordPress Settings #

Double-check your wp-config.php file to ensure your site URLs are set correctly (this helps WordPress generate proper links):

define('WP_SITEURL', 'http://example.com');
define('WP_HOME', 'http://example.com');

Step 4: Test and Reload Nginx #

Always test your Nginx config for syntax errors before reloading:

sudo nginx -t

If you see test is successful, restart Nginx to apply the changes:

sudo systemctl restart nginx

That should resolve the 404 error for your WordPress search requests from the /blog/ path!

内容的提问来源于stack exchange，提问作者sreelakshmi