CentOS7安装Nginx及配置systemctl命令

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-8.33.tar.gz
$ cd pcre-8.33
$ ./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.target

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
systemctl enable nginx.service  设置开机启动