1、看一下目录下的文件因为网络的原因，我们使用 yum 源的时候，最好把源修改为国内的镜像，这样可以加速下载速度。
下面我们 来看一下怎么将 centos 的默认源修改为阿里的源,测试的时候阿里的源已经无法使用所以修改为其他源
[root@eshop-cache01 yum.repos.d]# pwd /etc/yum.repos.d [root@eshop-cache01 yum.repos.d]# ll total 16 -rw-r--r--. 1 root root 1926 Nov 27 2013 CentOS-base.repo -rw-r--r--. 1 root root 638 Nov 27 2013 CentOS-Debuginfo.repo -rw-r--r--. 1 root root 630 Nov 27 2013 CentOS-Media.repo -rw-r--r--. 1 root root 3664 Nov 27 2013 CentOS-Vault.repo2、备份一下源文件
[root@eshop-cache01 yum.repos.d]# cat /etc/redhat-release CentOS release 6.5 (Final) # 所以我们下载 6 版本的 [root@eshop-cache01 yum.repos.d]# wget -O /etc/yum.repos.d/CentOS-base.repo http://file.kangle.odata.cc/repo/Centos-6.repo --2021-10-06 19:39:13-- http://file.kangle.odata.cc/repo/Centos-6.repo Resolving file.kangle.odata.cc... 218.89.171.143 Connecting to file.kangle.odata.cc|218.89.171.143|:80... connected. HTTP request sent, awaiting response... 200 OK Length: 3331 (3.3K) [text/plain] Saving to: “/etc/yum.repos.d/CentOS-base.repo” 100%[==================================================================>] 3,331 --.-K/s in 0s 2021-10-06 19:39:13 (146 MB/s) - “/etc/yum.repos.d/CentOS-base.repo” saved [3331/3331] [root@eshop-cache01 yum.repos.d]# wget -O /etc/yum.repos.d/epel.repo http://file.kangle.odata.cc/repo/epel-6.repo --2021-10-06 19:39:31-- http://file.kangle.odata.cc/repo/epel-6.repo Resolving file.kangle.odata.cc... 218.89.171.143 Connecting to file.kangle.odata.cc|218.89.171.143|:80... connected. HTTP request sent, awaiting response... 200 OK Length: 1474 (1.4K) [text/plain] Saving to: “/etc/yum.repos.d/epel.repo” 100%[==================================================================>] 1,474 --.-K/s in 0s 2021-10-06 19:39:31 (228 MB/s) - “/etc/yum.repos.d/epel.repo” saved [1474/1474]3、运行yum makecache生成缓存 4、yum 相关命令 4.1 安装
[root@eshop-cache01 yum.repos.d]# yum install -y gcc4.2 搜索
[root@eshop-cache01 yum.repos.d]# yum provides redis Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: mirrors.cloud.tencent.com * epel: mirrors.cloud.tencent.com * extras: mirrors.cloud.tencent.com * updates: mirrors.cloud.tencent.com redis-3.2.12-2.el6.x86_64 : A persistent key-value database Repo : epel Matched from:
