CentOS下安装nginx并且升级nginx到最新版

yum install yum-fastestmirro

yum install nginx
yum update nginx(之前先配置一下)
vim /etc/yum.repos.d/nginx.repo

[nginx]
name = nginx repo
baseurl=http://nginx.org/packages/centos/6/$basearch/
gpgcheck=0
enabled=1