1.whereis nginx 输出： nginx: /usr/sbin/nginx /usr/lib64/nginx /etc/nginx /usr/share/nginx /usr/share/man/man8/nginx.8.gz 执行目录：/user/sbin/nginx 模块所在目录：/usr/lib64/nginx 配置所在目录: /etc/nginx 默认站点目录：/usr/share/nginx
主要配置文件： /etc/nginx/nginx.conf
PID目录：/var/run/nginx.pid 错误日志：/var/log/nginx/error.log 访问日志：/var/log/nginx/access.log
2.vi /etc/nginx/nginx.conf 修改编辑nginx 配置
4、启动、停止、重载命令 systemctl start nginx.service systemctl stop nginx.service systemctl reload nginx.service systemctl status nginx.service
默认的nginx配置
