重新启动服务器，访问web服务发现无法浏览,登陆服务器之 后进到nginx使用./nginx -s reload重新读取配置文件，发现报nginx: [error] open() "/usr/local/nginx1.9.1/logs/nginx.pid" failed (2: No such file or directory)错误，进到logs文件发现的确没有nginx.pid文件
root@timeless-HP-Pavilion-g4-Notebook-PC:/home/timeless# /usr/local/nginx1.9.1/sbin/nginx -s reload
nginx: [error] open() "/usr/local/nginx1.9.1/logs/nginx.pid" failed (: No such file or directory)
解决方法：
root@timeless-HP-Pavilion-g4-Notebook-PC:/usr/local/nginx1.9.1/logs# /usr/local/nginx1.9.1/sbin/nginx -c /usr/local/nginx1.9.1/conf/nginx.conf
使用nginx -c的参数指定nginx.conf文件的位置
root@timeless-HP-Pavilion-g4-Notebook-PC:/usr/local/nginx1.9.1/logs# ls
access.log error.log host.access.log hostsalesmen.access.log nginx.pid salesmenerror.log
看nginx.pid文件已经有了。