1. 添加nginx yum repository
先参考:
stable version and mainline version 添加nginx的yum仓库， 创建文件名为/etc/yum.repos.d/nginx.repo并拷贝粘贴以下配置内容： stables version的配置如下(喜欢最新稳定版采用) [nginx] name=nginx repo baseurl=http://nginx.org/packages/centos/$releasever/$basearch/ gpgcheck=0 enabled=1 mainline version的配置如下(喜欢开发版采用) [nginx] name=nginx repo baseurl=http://nginx.org/packages/mainline/centos/$releasever/$basearch/ gpgcheck=0 enabled=1 其中， 由官方信息可知变量$releasever可替换为对于的版本， 如5, 6, 7分别对应5.x, 6.x, 7.x Due to differences between how CentOS, RHEL, and Scientific Linux populate the $releasever variable, it is necessary to manually replace $releasever with either 5 (for 5.x) or 6 (for 6.x), depending upon your OS version. 保存退出后， 执行yum makecache出现如下错误信息： # yum makecache Loaded plugins: security base | 3.7 kB 00:00 base/group_gz | 219 kB 00:00 base/filelists_db | 6.3 MB 00:06 base/other_db | 2.8 MB 00:02 epel | 4.3 kB 00:00 epel/filelists_db | 8.0 MB 00:07 epel/other_db | 2.9 MB 00:02 extras | 3.4 kB 00:00 extras/filelists_db | 38 kB 00:00 extras/prestodelta | 1.7 kB 00:00 extras/other_db | 51 kB 00:00 http://nginx.org/packages/centos/6/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'nginx.org'" Trying other mirror. Error: Cannot retrieve repository metadata (repomd.xml) for repository: nginx. Please verify its path and try again # 由”Couldn’t resolve host ‘nginx.org’”可以知道nginx域名解析不了 解决方法： 从DNS入手， 更改云主机的域名备用DNS 如下： # vim /etc/resolv.conf resolv.conf文件内容修改后， 如下： options timeout:1 attempts:1 rotate nameserver 10.202.72.118 # nameserver 10.202.72.116 nameserver 114.114.114.114 修改完后， 重新执行以下命令： # yum makecache 2. yum安装nginx# yum install nginx 3. 检测nginx是否安装成功nginx默认的配置目录为/etc/nginx/， 配置文件为/etc/nginx/nginx.conf # nginx -t nginx: the configuration file /etc/nginx/nginx.conf syntax is ok nginx: configuration file /etc/nginx/nginx.conf test is successful # # nginx -v nginx version: nginx/1.0.15
浏览器打开http://127.0.0.1, 如下图 执行# yum update进行升级， 然后再检测nginx版本， 如下： # nginx -v nginx version: nginx/1.8.1
此时从nginx官网可知 p.s. 下面使用mainline version的配置内容来配置/etc/yum.repos.d/nginx.repo, 即如下： [nginx] name=nginx repo baseurl=http://nginx.org/packages/mainline/centos/$releasever/$basearch/ gpgcheck=0 enabled=1 然后执行yum makecache来刷新缓存， 好了， 来检查下nginx是否有可更新版本：
# yum info nginx
Loaded plugins: security
Installed Packages
Name : nginx
Arch : x86_64
Version : 1.8.1
Release : 1.el6.ngx
Size : 872 k
Repo : installed
From repo : nginx
Summary : High performance web server
URL : http://nginx.org/
License : 2-clause BSD-like license
Description : nginx [engine x] is an HTTP and reverse proxy server, as well as
: a mail proxy server.
Available Packages
Name : nginx
Arch : x86_64
Version : 1.9.14
Release : 1.el6.ngx
Size : 820 k
Repo : nginx
Summary : High performance web server
URL : http://nginx.org/
License : 2-clause BSD-like license
Description : nginx [engine x] is an HTTP and reverse proxy server, as well as
: a mail proxy server.
显示， 我们可以将nginx1.8.1版本升级到当前最新版本nginx1.9.14, 命令如下： # yum update nginx OK， 成功安装当前nginx的最新版本为nginx1.9.14
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我们已成功安装了官方最新稳定版本的nginx.