1.安装nginx
安装依赖
yum -y install gcc gcc-c++ wget automake autoconf libtool libxml2-devel libxslt-devel perl-devel perl-ExtUtils-Embed pcre-devel openssl openssl-devel创建一个不能登录的nginx运行用户
groupadd www-data
useradd -s /sbin/nologin -g www-data www-data创建源码保存目录和运行时的临时文件夹，下载nginx源码，当前稳定版为nginx-1.22.1
mkdir -p /var/cache/nginxmkdir -p /usr/local/src/nginxcd /usr/local/src/nginxwget -c http://nginx.org/download/nginx-1.22.1.tar.gz解压
tar -zxvf nginx-1.22.1.tar.gzcd /usr/local/src/nginx/nginx-1.22.1编译前配置检查
./configure \--prefix=/usr/local/nginx \--sbin-path=/usr/local/nginx/sbin/nginx \--conf-path=/usr/local/nginx/conf/nginx.conf \--error-log-path=/var/log/nginx/error.log \--http-log-path=/var/log/nginx/access.log \--pid-path=/var/run/nginx.pid \--lock-path=/var/run/nginx.lock \--http-client-body-temp-path=/var/cache/nginx/client_temp \--http-proxy-temp-path=/var/cache/nginx/proxy_temp \--http-fastcgi-temp-path=/var/cache/nginx/fastcgi_temp \--http-uwsgi-temp-path=/var/cache/nginx/uwsgi_temp \--http-scgi-temp-path=/var/cache/nginx/scgi_temp \--user=www-data \--group=www-data \--with-pcre \--with-http_v2_module \--with-http_ssl_module \--with-http_realip_module \--with-http_addition_module \--with-http_sub_module \--with-http_dav_module \--with-http_flv_module \--with-http_mp4_module \--with-http_gunzip_module \--with-http_gzip_static_module \--with-http_random_index_module \--with-http_secure_link_module \--with-http_stub_status_module \--with-http_auth_request_module \--with-mail \--with-mail_ssl_module \--with-file-aio \--with-http_v2_module \--with-threads \--with-stream \--with-stream_ssl_module配置检查完毕，查看是否创建了Makefile，如果未创建成功，一般是因为缺失依赖包，根据提示安装依赖包。
编译，安装
makemake install启动nginx
/usr/local/nginx/sbin/nginx查看进程
ps aux|grep nginx杀掉进程
pkill -9 nginx配置服务
vim /usr/lib/systemd/system/nginx.service输入如下配置
[Unit]Description=nginx - high performance web serverDocumentation=http://nginx.org/en/docs/After=network-online.target remote-fs.target nss-lookup.targetWants=network-online.target[Service]Type=forkingPIDFile=/var/run/nginx.pidExecStart=/usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.confExecReload=/bin/kill -s HUP $MAINPIDExecStop=/bin/kill -s TERM $MAINPIDExecStartPost=/bin/sleep 0.1[Install]WantedBy=multi-user.target注意：如果你是单核服务器，需要加ExecStartPost=/bin/sleep 0.1
否则在执行systemctl start nginx之后，在执行systemctl status nginx时
会出现systemd[1]: Failed to read PID from file /var/run/nginx.pid: Invalid argument
这是因为nginx还未启动完成，systemctl就去寻找pid进程文件了，这是一个已知的bug
重新载入 systemd
systemctl daemon-reload开启开机启动
systemctl enable nginx.service启动和查看nginx状态
systemctl start nginxsystemctl status nginx
