RHEL / Centos 6: Install Nginx Using Yum Command

Sep 192014

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

Default configuration directory: /etc/nginx/
Default SSL and vhost config directory: /etc/nginx/conf.d/
Default log file directory: /var/log/nginx/
Default document root directory: /usr/share/nginx/html
Default configuration file: /etc/nginx/nginx.conf
Default server access log file: /var/log/nginx/access.log
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?

See this tutorial for more information.

How do I configure Nginx as a reverse proxy server?

See our previous tutorials:

How do I secure nginx web-server?

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 )