How to set up load balancing using nginx in Linux

This article introduces to you how to use nginx to set up load balancing in Linux. Let’s take a look at the specific content.

Prerequisites

Must have root access or sudo access. Connect to your server console using permissions access. Configure your site on the backend server.

Step 1: Install nginx server

First, log in to your server using ssh access, Windows users can use putty or ssh alternatives in the server. Now install nginx using Linux package manager. nginx packages are available under the default yum and apt repositories.

Use Apt-get:

$ sudo apt-get install nginx

Use Yum:

$ sudo yum install nginx

Use DNF:

$ sudo dnf install nginx

Step 2: Set up virtual host

Let’s create an nginx virtual host configuration file for the domain. Below is the minimal setup configuration file.

/etc/nginx/conf.d/www.example.com.conf

upstream remote_servers  {
   server remote1.example.com;
   server remote2.example.com;
   server remote3.example.com;
}
server {
   listen   80;
   server_name  example.com www.example.com;
   location / {
     proxy_pass  http://remote_servers;
   }
}

Step 3: Other useful commands

can also be used Some more useful settings to customize and optimize your load balancer with nginx. For example set, weight and ip hash (hash), as configured below.

Weight

upstream remote_servers  {
   server remote1.example.com weight=1;
   server remote2.example.com weight=2;
   server remote3.example.com weight=4;
}

IP Hash

upstream remote_servers {
   ip_hash;
   server   remote1.example.com;
   server   remote2.example.com;
   server   remote3.example.com  down;
 }

Step 4: Restart nginx service

After completing all changes, use the following command Restart the nginx service.

$ sudo systemctl restart nginx.service

This article has ended here. For more exciting content, you can pay attention to other related column tutorials on the php Chinese website! ! !

The above is the detailed content of How to set up load balancing using nginx in Linux. For more information, please follow other related articles on the PHP Chinese website!