Centos7 establish local yum source on LAN

1. Download the system ISO file

  http://isoredirect.centos.org/centos/7/isos/x86_64/

2. Start Apache HTTP Server, generally Centos system pre-installs httpd, if not installed, you can download and install it yourself ( httpd download link )

systemctl start httpd
systemctl status httpd

3. Create an ISO file mounting directory and mount the ISO file

mkdir /var/www/html/centos7
mount CentOS-7-x86_64-Everything-2003.iso  /var/www/html/centos7

4. Open the browser to test the local library

Enter http://172.168.***.***/centos7/  in the browser to       display the following figure,

5. Back up the original warehouse files

cd /etc/yum.repos.d
mkdir backup
mv  CentOS*  ./backup

6. Create a local warehouse file

vim Centos-LocalBase.repo

Add the following content to save:

[local-repo]
name=local-repo
baseurl=http://172.168.***.***/centos7/
enabled=1
gpgcheck=0
gpgkey=http://172.168.***.***/centos7/RPM-GPG-KEY-CentOS-7

7. Clear the original yum cache and generate a new cache

sudo yum clean all
sudo yum makecache

8. Test yum warehouse

yum list | more