centos 安装httpd时出错“没有可用软件包httpd_yum”，提示No package httpd available.

yum仓库e68a84e8a2ad62616964757a686964616f31333365643661问题。

#yum -y update

[root@malu2 yum.repos.d]# yum search vim

Loaded plugins: fastestmirror

Loading mirror speeds from cached hostfile

* base: mirror.hosting90.cz

* extras: mirror.hosting90.cz

* updates: mirror.hosting90.cz

vim-X11.x86_64 : The VIM version of the vi editor for the X Window System.

vim-common.x86_64 : The common files needed by any version of the VIM editor.

vim-enhanced.x86_64 : A version of the VIM editor which includes recent

: enhancements.

vim-minimal.x86_64 : A minimal version of the VIM editor.