Centos-7如何安装Nginx

1.安装nginx镜像

1. 安装yum-utils

   sudo yum install yum-utils
   

2. 设置yum存储库

   vim /etc/yum.repos.d/nginx.repo
   

   [nginx-stable]
   name=nginx stable repo
   baseurl=http://nginx.org/packages/centos/7/$basearch/
   gpgcheck=1
   enabled=1
   gpgkey=https://nginx.org/keys/nginx_signing.key
   module_hotfixes=true
   
   [nginx-mainline]
   name=nginx mainline repo
   baseurl=http://nginx.org/packages/mainline/centos/7/$basearch/
   gpgcheck=1
   enabled=1
   gpgkey=https://nginx.org/keys/nginx_signing.key
   module_hotfixes=true
   
   [nginx]
   name=nginx repo
   baseurl=http://nginx.org/packages/centos/7/$basearch/
   gpgcheck=0
   enabled=1
   

3. 安装nginx

   yum install nginx
   

2. 修改yum镜像

执行完上述操作后， 仍未下载成功，且出现一下错误：

This system is not registered with an entitlement server. You can use subscription-manager to register

这是因为红帽的企业版Linux系统RHEL是收费的，必须要注册才可正常使用。

这时我们就得替换掉原版的yum，安装一个免费的yum源-->CentOS

1. 检查yum源

   rpm -qa | grep yum
   

   

2. 删除yum源

   rpm -qa|grep yum|xargs rpm -e --nodeps
   

3. 下载yum源 我用的是阿里云网络源地址

   wget https://mirrors.aliyun.com/centos/7/os/x86_64/Packages/yum-3.4.3-168.el7.centos.noarch.rpm
   wget https://mirrors.aliyun.com/centos/7/os/x86_64/Packages/yum-metadata-parser-1.1.4-10.el7.x86_64.rpm
   wget https://mirrors.aliyun.com/centos/7/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.31-54.el7_8.noarch.rpm
   rpm -ivh yum-*
   

   **rpm -ivh yum-**是用来防止包安装时，有互相依赖

4. 检测是否安装成功

   rpm -qa |grep yum
   

   

5. 走完以上流程即可下载nginx啦

   yum install nginx