How To See Error Log In Nginx
Introduction to Nginx
Nginx is an open-source HTTP server, reverse proxy, and mail proxy software that was created by Igor Sysoev in 2004. It’s known for its strength, scalability, and speed in serving a large number of requests. Nginx comes with an error log system that allows you to view error messages generated from your web server and troubleshoot problems easily. In this article, we will discuss how to view the error log in Nginx
Finding the Nginx Log Files
Nginx creates access and error logs in the directory /var/log/where the nginx root configuration is stored. To find the error log of an individual server, locate the nginx.conf configuration file for the specific server and the corresponding log locations should be listed. The system administrator normally creates access and error logs for each server in the /var/log/nginx directory. It is important to note that these files are safe in their location and only those with “root” permissions will have access.
Viewing the Nginx Error Log
Viewing the Nginx error log is easy as long as you know the right command. This error log will contain data on any error codes or messages that have been generated from your web server. To view the error log for your Nginx server, open the Terminal window and enter the following command:
tail -30 /var/log/nginx/error.log
This command will display the last 30 lines of the Nginx error log. If you want to view a particular line then use the –line option followed by a number, eg:
tail -line 200 /var/log/nginx/error.log
This command will display the line 200 of the Nginx error log. Alternatively, you can also use the less command to see the error log contents.
Finding Errors in the Log
You can view the Nginx error log to see if there are any errors present. Errors are displayed as 5xx codes in the log, and you will be able to see the exact error code such as 502, or 500 if present. If an error
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