Replacing CentOS Repositories to Local Mirrors

Linux Tutorials - Herong's Tutorial Examples

∟Software Package Manager on CentOS - DNF and YUM

∟Replacing CentOS Repositories to Local Mirrors

This section provides a tutorial example on how to replace CentOS repository configuration files to use local repository mirrors.

Sometimes you may want to use local CentOS repository mirrors instead of CentOS official repository servers to get reliable and faster connections.

For example, if you are in China, you way want to use CentOS repository mirrors provided by Alibaba as shown below:

1. Archive current repository configuration files:

herong$ cd /etc/yum.repos.d

herong$ sudo mkdir backup

herong$ sudo mv CentOS-*.repo backup

2. Find out the CentOS release number:

herong$ sudo grep release /etc/centos-release

CentOS Linux release 8.5.2111

3. Download repository configuration files for CentOS 8.5.2111 from Alibaba mirror site:

herong$ cd /etc/yum.repos.d

herong$ sudo wget -O /etc/yum.repos.d/CentOS-Base.repo \
  https://mirrors.aliyun.com/repo/Centos-vault-8.5.2111.repo

Resolving mirrors.aliyun.com 202.100.222.211,
Connecting to mirrors.aliyun.com |202.100.222.211|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 2495 (2.4K) [application/octet-stream]
Saving to: '/etc/yum.repos.d/CentOS-Base.repo'

herong$ ls -l CentOS-*.repo
-rw-r--r--. 1 root root 2495 Feb 14 21:16 CentOS-Base.repo

4. Try to run "dnf/yum" commands again. I see no problem accessing CentOS Linux 8.5.2111 repositories:

herong$ sudo dnf info wget
CentOS-8.5.2111 - Base - mirrors.aliyun.com              5.3 MB/s
CentOS-8.5.2111 - Extras - mirrors.aliyun.com             45 kB/s
CentOS-8.5.2111 - AppStream - mirrors.aliyun.com         6.0 MB/s

Installed Packages
Name         : wget
Version      : 1.19.5
Release      : 10.el8
Architecture : x86_64
Size         : 2.8 M
Source       : wget-1.19.5-10.el8.src.rpm
Repository   : @System
From repo    : AppStream
...