安装依赖：
yum -y install make zlib zlib-devel gcc-c++ libtool openssl openssl-devel
yum install pcre #centos7系统自带无需安装
下面开始Nginx安装步骤
1.下载压缩包
wget http://124.205.69.167/files/5114000006EA9D21/nginx.org/download/nginx-1.15.2.tar.gz
2.解压
tar -zxvf nginx-1.15.2.tar.gz -C /usr/local
3.编译安装
cd /usr/local/nginx-1.15.2/
./configure
make && make install
安装完成后在/usr/local/目录下会多出一个文件夹nginx
cd /usr/local/
ll
4.查看安装版本
cd /usr/local/nginx/sbin/
/usr/local/nginx/sbin/nginx -v
5.检查配置
/usr/local/nginx/sbin/nginx -t
6.启动
/usr/local/nginx/sbin/nginx
7.浏览器访问
linux服务器ip:80
8.其他
/usr/local/nginx/sbin/nginx -s reload # 重新载入配置文件
/usr/local/nginx/sbin/nginx -s reopen # 重启 Nginx
/usr/local/nginx/sbin/nginx -s stop # 停止 Nginx
9.开机启动
（1）编辑service文件
cd /usr/lib/systemd/system/ #进入service文件目录
vim ./nginx.service #编辑nginx.service文件
在nigix.service文件中添加以下信息
[Unit]
Description=nginx - high performance web server
After=network.target remote-fs.target nss-lookup.target
[Service]
Type=forking
ExecStart=/usr/local/nginx/sbin/nginx
ExecReload=/usr/local/nginx/sbin/nginx -s reload
ExecStop=/usr/local/nginx/sbin/nginx -s stop
[Install]
WantedBy=multi-user.target
（2）生效
systemctl daemon-reload
（3）改变文件权限
chmod 777 ./nginx.service
（4）建立软连接
ln -s /usr/lib/systemd/system/nginx.service /etc/systemd/system/multi-user.target.wants/nginx.service
（5）systemctl开机启动nginx
systemctl enable nginx.service
（6）systemctl取消开机启动nginx
systemctl disable nginx.service
（7）systemctl启动nginx
systemctl start nginx.service
（8）systemctl重启nginx
systemctl restart nginx.service
（9）systemctl停止nginx
systemctl restart nginx.service
（10）systemctl查看nginx状态
systemctl status nginx.service