Shulou(Shulou.com)06/02 Report--

1.1 introduction

The English full name of YUM is Yellow Dog Updater Modified.

YUM is mainly used to automatically install and upgrade rpm software packages. It can automatically find and solve the dependencies between rpm packages. To successfully install updated software or systems using YUM tools, you need to have a repository (software repository) containing various rpm packages, which we used to call the yum source. There are a large number of yum sources on the network, but due to the limitations of the network environment, the installation of the software takes too long or even fails. The slow progress bar is unbearable, especially when there are a lot of servers and a lot of software packages to install. Therefore, when optimizing the system, the domestic source will be changed.

Comparatively speaking, the biggest advantage of local YUM source server is the fast network connection and stability of local area network. With the YUM source server in the local area network, even if the Internet connection is interrupted, it will not affect the software installation and upgrade of other YUM clients.

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