ps:一切从简
一、安装所需环境：
yum -y install gcc gcc-c++ automake pcre pcre-devel zlip zlib-devel openssl openssl-devel
二、下载及安装nginx
1.下载nginx：wget http://nginx.org/download/nginx-1.8.1.tar.gz
2.解压nginx： tar -xzf nginx-1.8.1.tar.gz
3.添加用户组：groupadd www、useradd -g www www
3.编译nginx：进入解压之后的目录执行 (这里prefix为安装目录)
./configure \--user=www \--group=www \--prefix=/usr/local/nginx \--with-http_ssl_module \--with-http_stub_status_module \--with-http_realip_module \--with-threads
4.安装nginx：make && make install
(安装完成之后：make[1]: Leaving directory `/usr/local/nginx-1.8.1') 无伤大雅
5.验证是否安装成功：/usr/local/nginx/sbin/nginx -V
输出：
nginx version: nginx/1.8.1
built by gcc 4.8.5 20150623 (Red Hat 4.8.5-36) (GCC)
built with OpenSSL 1.0.2k-fips 26 Jan 2017
TLS SNI support enabled
configure arguments: --user=www --group=www --prefix=/usr/local/nginx --with-http_ssl_module --with-http_stub_status_module --with-http_realip_module --with-threads
三、配置nginx
vi /usr/lib/systemd/system/nginx.service
添加如下：
[Unit]
Description=nginx - high performance web server
Documentation=http://nginx.org/en/docs/
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.confExecStart=/usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf
ExecReload=/bin/kill -s HUP $MAINPID
ExecStop=/bin/kill -s QUIT $MAINPID
PrivateTmp=true [Install]WantedBy=multi-user.target
执行：
/usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf
启动nginx：
systemctl start nginx
设置开机启动：
systemctl enable nginx