How to check nginx version

The methods that can query the Nginx version are: use the nginx -v command; view the version directive in the nginx.conf file; open the Nginx error page and view the page title.

How to query the Nginx version

Nginx is a popular web server, and querying its version is very important for solving problems, monitoring performance, or planning upgrades. The following describes several methods for querying Nginx version:

1. Use the command line

You can use the nginx -v command to view the Nginx version through the command line:

 <code>$ nginx -v</code>

This command will output information about Nginx version and compilation options, for example:

 <code>nginx version: nginx/1.19.10 built with OpenSSL 1.1.1l 24 Aug 2021 TLS SNI support enabled</code>

2. View the configuration file

Nginx configuration files usually contain information about the Nginx version. Open the configuration file, usually located in /etc/nginx/nginx.conf , and search for version directive:

 <code>user nginx; worker_processes 1; error_log /var/log/nginx/error.log notice; pid /var/run/nginx.pid; events { worker_connections 1024; } http { include /etc/nginx/mime.types; default_type application/octet-stream; version: nginx/1.19.10; ...</code>

3. Using Nginx Error Page

If Nginx is configured to display an error page, you can open the error page in your browser to view version information. The title of the error page usually contains the Nginx version:

• Open the browser and enter the following URL: http://your_domain/nginx_status
• Find page title, usually nginx/1.19.10 and other content

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