CentOS7安装Nginx及配置systemctl命令

- 日理万妓 2023-05-30 06:22 13阅读 0赞

**1.安装gcc gcc-c++(如新环境,未安装请先安装)**

$ yum install -y gcc gcc-c++

**2.安装PCRE库**

$ cd /usr/local/
    $ wget http://jaist.dl.sourceforge.net/project/pcre/pcre/8.33/pcre-8.33.tar.gz
    $ tar -zxvf pcre-8.36.tar.gz
    $ cd pcre-8.36
    $ ./configure
    $ make && make install

如报错:configure: error: You need a C++ compiler for C++ support  
解决:yum install -y gcc gcc-c++

**3.安装SSL库**

$ cd /usr/local/
    $ wget http://www.openssl.org/source/openssl-1.0.1j.tar.gz
    $ tar -zxvf openssl-1.0.1j.tar.gz
    $ cd openssl-1.0.1j
    $ ./config
    $ make && make instal

**4.安装zlib库存**

$ cd /usr/local/
    $ wget http://zlib.net/zlib-1.2.11.tar.gz
    $ tar -zxvf zlib-1.2.11.tar.gz
    $ cd zlib-1.2.11
    $ ./configure
    $ make && make install

**5.安装nginx**

$ cd /usr/local/
    $ wget http://nginx.org/download/nginx-1.8.0.tar.gz
    $ tar -zxvf nginx-1.8.0.tar.gz
    $ cd nginx-1.8.0
    $ ./configure --user=nobody --group=nobody --prefix=/usr/local/nginx --with-http_stub_status_module --with-http_gzip_static_module --with-http_realip_module --with-http_sub_module --with-http_ssl_module
    
    (注: --with-http_ssl_module:这个不加后面在nginx.conf配置ssl:on后,启动会报nginx: [emerg] unknown directive "ssl" in /opt/nginx/conf/nginx.conf 异常)
    
    $ make && make install

如出现以下错误：

./configure: error: SSL modules require the OpenSSL library.

运行此命令：

yum -y install openssl openssl-devel

如果报错:./configure: error: the HTTP gzip module requires the zlib library  
在–prefix后面接以下命令:

–with-pcre=/usr/local/pcre-8.36 指的是pcre-8.36 的源码路径。–with-zlib=/usr/local/zlib-1.2.8 指的是zlib-1.2.8 的源码路径。

6.启动

$ /usr/local/nginx/sbin/nginx

检查是否启动成功：  
打开浏览器访问此机器的 IP，如果浏览器出现 Welcome to nginx! 则表示 Nginx 已经安装并运行成功。  
部分命令如下：

重启：$ /usr/local/nginx/sbin/nginx –s reload
    停止：$ /usr/local/nginx/sbin/nginx –s stop

测试配置文件是否正常：

$ /usr/local/nginx/sbin/nginx –t
    
    强制关闭：$ pkill nginx

7.将nginx添加到系统服务（配置nginx的systemctl命令）

创建nginx.service文件  
在/usr/lib/systemd/system目录下创建nginx.service

$ cd
    $ cd /usr/lib/systemd/system
    $ vim /usr/lib/systemd/system/nginx.service

[Unit]
    Description=nginx-The High-performance HTTP Server		 
    After=network.target remote-fs.target nss-lookup.target		
    
    [Service]
    Type=forking		
    PIDFile=/usr/local/nginx/logs/nginx.pid		
    ExecStartPre=/usr/local/nginx/sbin/nginx -t -c /usr/local/nginx/conf/nginx.conf		
    ExecStart=/usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf		
    ExecReload=/usr/local/nginx/sbin/nginx -s reload		
    ExecStop=/usr/local/nginx/sbin/nginx -s stop		   
    ExecQuit=/usr/local/nginx/sbin/nginx -s quit		   
    PrivateTmp=true		
    
    [Install]
    WantedBy=multi-user.targ

运行命令

$ chmod +x nginx.service

命令如下

systemctl start nginx.service  启动
    systemctl stop nginx.service   停止
    systemctl reload nginx.service   重载
    systemctl status nginx.service  查看状态