centos 7使用yum安装nginx

一、安装流程简介

如果是 Ubuntu下安装nginx，直接apt-get install nginx就行了，很方便。
如果是 CentOS ，直接yum install nginx不行，要先处理下源，下面是安装完整流程梳理：

二、安装步骤1

2.1、如果是 CentOS 7、则执行下面指令：

 rpm -ivh http://nginx.org/packages/centos/7/noarch/RPMS/nginx-release-centos-7-0.el7.ngx.noarch.rpm 

2.2、如果是CentOS 6、则执行下面指令：

 rpm -ivh http://nginx.org/packages/centos/6/noarch/RPMS/nginx-release-centos-6-0.el6.ngx.noarch.rpm 

2.3、如果是CentOS 5、则执行下面指令：

 rpm -ivh http://nginx.org/packages/centos/5/noarch/RPMS/nginx-release-centos-5-0.el5.ngx.noarch.rpm 

三、安装步骤2

3.1、 查看yum的nginx信息

yum info nginx
 Loaded plugins: fastestmirror
 Determining fastest mirrors
 base: mirror.esocc.com
 extras: mirror.esocc.com
 updates: mirror.esocc.com
 base                                                     | 3.7 kB     00:00
 base/primary_db                                          | 4.4 MB     00:28
 extras                                                   | 3.5 kB     00:00
 extras/primary_db                                        |  19 kB     00:00
 nginx                                                    | 2.9 kB     00:00
 nginx/primary_db                                         |  22 kB     00:00
 updates                                                  | 3.5 kB     00:00
 updates/primary_db                                       | 2.1 MB     00:10
 Installed Packages
 Name        : nginx
 Arch        : x86_64
 Version     : 1.4.0
 Release     : 1.el6.ngx
 Size        : 874 k
 Repo        : installed
 From repo   : nginx
 Summary     : nginx is a high performance web server
 URL         : http://nginx.org/
 License     : 2-clause BSD-like license
 Description : nginx [engine x] is an HTTP and reverse proxy server, as well as
         : a mail proxy server 

四、安装步骤3

3.1、 安装并启动nignx

[root@server ~]# yun install nignx
 [root@server ~]# service nginx start
 Starting nginx: 

五、安装步骤4

4.1、 然后进入浏览器，输入http://192.168.0.161/测试，如果看到

Welcome to nginx!
 If you see this page, the nginx web server is successfully installed and working. Further configuration is required.
 For online documentation and support please refer to nginx.org.
 Commercial support is available at nginx.com.
 Thank you for using nginx.

六、结语

恭喜你，你成功了！
如果不能连接到nginx，原因很多，但是可以先检查
1,nginx服务是否真的起来了；
2,linux服务器防火墙是否打开

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