1、首先配置epel源：

            （1）下載epel源epel-release-5-4.noarch.rpm并安裝,，然后yum install bluefish即可,。

2、系統(tǒng)默認(rèn)帶的YUM源有時(shí)候不能滿(mǎn)足需求,，故使用fedora epelyum源是個(gè)不錯(cuò)的選擇,，epel所對(duì)應(yīng)的RHEL7和Centos7已經(jīng)出來(lái)了，替換方法如下：

              Epel介紹 具體請(qǐng)參見(jiàn)：http:///wiki/EPEL

               如何安裝 Epel源到 RHEL/CentOS 7/6/5?

             （1）通過(guò)wget命令下載RPM文件,，然后安裝,。

                 RHEL/CentOS 7 64 Bit

                 # wget http://dl./pub/epel/beta/7/x86_64/epel-release-7-0.2.noarch.rpm

 wget http://dl./pub/epel/epel-release-latest-7.noarch.rpm

# rpm -ivh epel-release-7-0.2.noarch.rpm

RHEL/CentOS 6 32-64 Bit

## RHEL/CentOS 6 32-Bit ##

# wget http://download./pub/epel/6/i386/epel-release-6-8.noarch.rpm

# rpm -ivh epel-release-6-8.noarch.rpm

## RHEL/CentOS 6 64-Bit ##

# wget http://download./pub/epel/6/x86_64/epel-release-6-8.noarch.rpm

# rpm -ivh epel-release-6-8.noarch.rpm

RHEL/CentOS 5 32-64 Bit

## RHEL/CentOS 5 32-Bit ##

# wget http://download./pub/epel/5/i386/epel-release-5-4.noarch.rpm

# rpm -ivh epel-release-5-4.noarch.rpm

## RHEL/CentOS 5 64-Bit ##

# wget http://download./pub/epel/5/x86_64/epel-release-5-4.noarch.rpm

# rpm -ivh epel-release-5-4.noarch.rpm

RHEL/CentOS 4 32-64 Bit

## RHEL/CentOS 4 32-Bit ##

# wget http://download./pub/epel/4/i386/epel-release-4-10.noarch.rpm

# rpm -ivh epel-release-4-10.noarch.rpm

## RHEL/CentOS 4 64-Bit ##

# wget http://download./pub/epel/4/x86_64/epel-release-4-10.noarch.rpm

# rpm -ivh epel-release-4-10.noarch.rpm

如何檢查epel是否安裝成功？

使用一下命令：

# yum repolist

輸出如下

[root@Lixiaolong ~]# yum repolist

Loaded plugins: fastestmirror

Loading mirror speeds from cached hostfile

 * base: mirrors.yun-idc.com

 * epel: ftp.sjtu.edu.cn

 * extras: mirrors.yun-idc.com

 * updates: mirrors.yun-idc.com

repo id                        repo name                                                     status

base/7/x86_64                  CentOS-7 - Base                                               8,465

epel/x86_64                    Extra Packages for Enterprise Linux 7 - x86_64                5,036

extras/7/x86_64                CentOS-7 - Extras                                                30

updates/7/x86_64               CentOS-7 - Updates                                              423

repolist: 13,954

[root@Lixiaolong ~]# 

如何使用epel源安裝軟件,？

例如想查看cacti信息

# yum --enablerepo=epel info cacti

安裝則執(zhí)行以下命令：

# yum --enablerepo=epel install cacti

Note: Epel的配置文件在/etc/yum.repos.d/epel.repo.