User Nginx Does Not Exist Centos

User Nginx Does Not Exist Centos

What is Nginx?

Nginx, pronounced “engine-x”, is an open source web server, reverse proxy server, IMAP/POP3 proxy server, and HTTP cache server. Nginx has become popular over the last few years due to its scalability, robustness, and ease of use. Nginx can be used on both Linux/Unix and Windows operating systems. It is highly configurable and can be used for a variety of different web applications.

Nginx is free and open source software released under the 2-clause BSD license. It is used by millions of websites, including some of the most popular websites on the internet. It is a popular option for web hosting and web application development for businesses, organizations, and individual users.

How to Install Nginx on Centos

In this section, we will show you how to install Nginx on a CentOS 7 machine. The installation process is fairly straightforward and can be completed in just a few minutes.

The first step is to install the EPEL repository. This repository contains a number of useful packages, including Nginx. To install the repository, run the following command as the root user:

$ yum install epel-release

Once the repository has been installed, you can now install Nginx by running the following command as the root user:

$ yum install nginx

Nginx will now be installed on your system. You can confirm that the installation was successful by running the following command, which will print the version of Nginx installed on your system:

$ nginx -v

The next step is to enable and start Nginx. To do this, run the following commands:

$ systemctl enable nginx

$ systemctl start nginx

Nginx is now running on your CentOS machine. You can test this by opening a web browser and visiting http://localhost/. You should see the default Nginx welcome page.

What to Do if User Nginx Does Not Exist on Centos?

If you get an error message when trying to start Nginx due to the fact that the user ‘nginx’ does not exist, the first thing to try is to check that the Nginx package was correctly installed. You can do this by running the following command as the root user:

$ rpm -qa | grep nginx


If Nginx is installed, you should see the version number (1.10.2 in the example above) printed to the terminal. If you do not see the version number, then Nginx has not been correctly installed and you should try reinstalling the package.

If Nginx has been correctly installed, but the user nginx does not exist, then the user has not been created correctly during the installation. You can manually create the user by running the following command as the root user:

$ useradd nginx

$ usermod -a -G nginx nginx

The above commands will create the user nginx and add it to the nginx group. You can now try to start Nginx again and it should start without any errors. If you are still getting errors, then you should try to reinstall the package again.

How to Enable Nginx to Run as a Service

Once the ‘nginx’ user has been created, it is also a good idea to set up Nginx to run as a service. This will enable Nginx to start automatically when the system boots and makes it easier to manage the server. To do this, execute the following command as the root user:

$ systemctl enable nginx

This command will enable the Nginx service and make sure that it starts when the system boots. It will also enable you to control the service using the ‘systemctl’ command. To start the service manually, run the following command:

$ systemctl start nginx

To stop the service, run the following command:

$ systemctl stop nginx

How to Configure Nginx on Centos

The next step after installing and setting up Nginx is to configure it to serve your web content. This is done by editing the configuration files that define how Nginx behaves. These configuration files are located in the ‘/etc/nginx’ directory. The main configuration file is ‘nginx.conf’, which includes other configuration files in the same directory.

The configuration file is in a file format called ‘nginx.conf’, which is based on the ‘C’ programming language. To edit the configuration file, you will need to use a text editor, such as ‘vi’ or ‘nano’. It is very important to get the configuration file right, as any mistakes can make the server inaccessible. After making any changes to the configuration file, you must restart Nginx for them to take effect.

You can also configure Nginx to serve content from a different directory. To do this, you must edit the ‘root’ option in the ‘nginx.conf’ file. By default, the ‘root’ option is set to ‘/var/www/html’, which is the directory where your web content should be located. You can change this to any directory you wish.

How to Troubleshoot Nginx on Centos

If you encounter any problems while running Nginx on CentOS, here are some troubleshooting steps you can follow:

  • Check the Nginx log files: ‘/var/log/nginx/error.log’ and ‘/var/log/nginx/access.log’ for errors.
  • Check the config file for any syntax errors: ‘nginx -t’.
  • Check that all services are running: ‘systemctl status’.
  • Check the firewall settings: ‘iptables -L’.
  • Check that Nginx is listening on port 80: ‘netstat -tulpn’.
  • Check the permissions of the web content directories.

If all else fails, you can always try reinstalling Nginx and reconfiguring it.


In this article, we have discussed how to install and configure Nginx on CentOS 7, as well as how to create the ‘nginx’ user in case the user does not exist. We have also discussed some troubleshooting steps to help you resolve any issues you may be having with Nginx on CentOS.

Thanks for reading! If you need more help, feel free to read more in our comprehensive blog and other articles.

Leave a Reply

Your email address will not be published. Required fields are marked *