centos yum epel 安装

1、yum安装出现No package netstat available解决办法

#yum install -y netstat
Loaded plugins: fastestmirror, security
Loading mirror speeds from cached hostfile
* base: mirrors.163.com
* extras: mirrors.163.com
* updates: mirrors.163.com
Setting up Install Process
No package netstat available.
Error: Nothing to do

通过provides查询哪些包含有netstat
# yum provides */netstat
Loaded plugins: fastestmirror, security
Loading mirror speeds from cached hostfile
* base: mirrors.163.com
* extras: mirrors.163.com
* updates: mirrors.163.com
ctdb-tests-2.5.1-2.el6.x86_64 : CTDB clustered database test suite
Repo        : base
Matched from:
Filename    : /usr/share/ctdb-tests/eventscripts/stubs/netstat

net-tools-1.60-114.el6.x86_64 : Basic networking tools
Repo        : base
Matched from:
Filename    : /bin/netstat

net-tools-1.60-110.el6_2.x86_64 : Basic networking tools
Repo        : installed
Matched from:
Filename    : /bin/netstat

#yum install net-tools

 2、安装EPEL 仓库（repo）

#yum install -y epel-release

更新元数据缓存：

#yum clean all && yum makecache

3、Cannot retrieve metalink for repository: epel. Please verify its path and try again

#vi /etc/yum.repos.d/epel.repo
baseurl=http://mirrors.aliyun.com/epel/6/$basearch
             http://mirrors.aliyuncs.com/epel/6/$basearch