RHEL / Centos 6: Install Nginx Using Yum Command

How can I install Nginx web server On CentOS Linux 6 or Red Hat Enterprise Linux 6 using yum command?

Tutorial details
Difficulty Intermediate (rss)
Root privileges Yes
Requirements CentOS/RHEL
yum
Estimated completion time N/A


Recently, nginx web project started to distribute binary packages using nginx yum repository. You can either create /etc/yum.repos.d/nginx.repo or directly install rpm package. This package contains yum configuration file and a public PGP key necessary to authenticate signed RPMs.

Step #1: Install nginx repo

Type the following wget command to install nginx yum configuration
file:
# cd /tmp
CentOS Linux v6.x user type the following command:
# wget http://nginx.org/packages/centos/6/noarch/RPMS/nginx-release-centos-6-0.el6.ngx.noarch.rpm
# rpm -ivh nginx-release-centos-6-0.el6.ngx.noarch.rpm

RHEL v6.x user type the following command:
# wget http://nginx.org/packages/rhel/6/noarch/RPMS/nginx-release-rhel-6-0.el6.ngx.noarch.rpm
# rpm -ivh nginx-release-rhel-6-0.el6.ngx.noarch.rpm

Sample outputs:
warning: nginx-release-rhel-6-0.el6.ngx.noarch.rpm: Header V4 RSA/SHA1 Signature, key ID 7bd9bf62: NOKEY
Preparing... ########################################### [100%] 1:nginx-release-rhel ########################################### [100%]

Step #2: Install nginx web-server

Type the following yum command to install nginx web-server:
# yum install nginx
Sample outputs:
Loaded plugins: product-id, rhnplugin, security, subscription-manager
Updating certificate-based repositories.
Unable to read consumer identity
nginx | 1.3 kB 00:00
nginx/primary | 4.8 kB 00:00
nginx 33/33
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package nginx.x86_64 0:1.2.6-1.el6.ngx will be installed
--> Finished Dependency Resolution
 
Dependencies Resolved
 
================================================================================
Package Arch Version Repository Size
================================================================================
Installing:
nginx x86_64 1.2.6-1.el6.ngx nginx 361 k
 
Transaction Summary
================================================================================
Install 1 Package(s)
 
Total download size: 361 k
Installed size: 835 k
Is this ok [y/N]: y
Downloading Packages:
nginx-1.2.6-1.el6.ngx.x86_64.rpm | 361 kB 00:00
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
Warning: RPMDB altered outside of yum.
Installing : nginx-1.2.6-1.el6.ngx.x86_64 1/1
----------------------------------------------------------------------
 
Thanks for using NGINX!
 
Check out our community web site:
* http://nginx.org/en/support.html
 
If you have questions about commercial support for NGINX please visit:
* http://www.nginx.com/support.html
 
----------------------------------------------------------------------
Installed products updated.
Verifying : nginx-1.2.6-1.el6.ngx.x86_64 1/1
 
Installed:
nginx.x86_64 0:1.2.6-1.el6.ngx
 
Complete!
 

Step #3: Turn on nginx service

Type the following command:
# chkconfig nginx on

How do I start / stop / restart nginx web-server?

Type the following commands:
# service nginx start
# service nginx stop
# service nginx restart
# service nginx status
# service nginx reload

Step #4: Configuration files

  1. Default configuration directory: /etc/nginx/
  2. Default SSL and vhost config directory: /etc/nginx/conf.d/
  3. Default log file directory: /var/log/nginx/
  4. Default document root directory: /usr/share/nginx/html
  5. Default configuration file: /etc/nginx/nginx.conf
  6. Default server access log file: /var/log/nginx/access.log
  7. Default server access log file: /var/log/nginx/error.log
To edit the nginx configuration file, enter:
# vi /etc/nginx/nginx.conf
Set or update worker_processes as follows (this must be set to CPU(s) in your system. Use thelscpu | grep ‘^CPU(s)’ command to list the number of CPUs in the server)
worker_processes  2;
Turn on gzip support:
gzip  on;
Save and close the file. Edit the file /etc/nginx/conf.d/default.conf, enter:
# vi /etc/nginx/conf.d/default.conf
Set IP address and TCP port number:
    listen       202.54.1.1.1:80;
Set server name:
    server_name  www.cyberciti.biz;
Save and close the file. Start the server:
# service nginx start
Verify that everything is working:
# netstat -tulpn | grep :80
# ps aux | grep nginx

Firewall configuration: Open TCP port # 80

Edit the file /etc/sysconfig/iptables, enter:
# vi /etc/sysconfig/iptables
Add the following lines, ensuring that they appear before the final LOG and DROP lines for the INPUT chain to open port 80:
 
-A INPUT -m state --state NEW -p tcp --dport 80 -j ACCEPT
 
Save and close the file. Finally, restart the firewall:
# service iptables restart

How do I configure nginx+php5?

How do I configure Nginx as a reverse proxy server?

See our previous tutorials:
  1. CentOS / Redhat Linux: Install Keepalived To Provide IP Failover For Web Cluster
  2. CentOS / Redhat: Install nginx As Reverse Proxy Load Balancer
  3. Handling nginx Failover With KeepAlived
  4. nginx: Setup SSL Reverse Proxy (Load Balanced SSL Proxy)
  5. mod_extforward: Lighttpd Log Clients Real IP Behind Reverse Proxy / Load Balancer
  6. HowTo: Merge Apache / Lighttpd / Nginx Server Log Files
  7. Linux nginx: Chroot (Jail) Setup

How do I secure nginx web-server?

  1. See: Top 20 Nginx webServer best security practices blog post for more information.

Check out related media

This tutorial is also available in a quick video format.



(Video 01: HowTo: Install Nginx On Centos / Red Hat Enterprise Linux 6.x )