I researched a method to speed up when updating yum, CentOS’s package management system, so here’s a memo.

First, install yum-fastestmirror with the yum command.

# yum -y install yum-fastestmirror

Next, check if the fastestmirror plugin is loaded properly with yum check-update.

# yum check-update
Loading "fastestmirror" plugin
Determining fastest mirrors
* base: ftp.iij.ad.jp
* extras: ftp.iij.ad..jp
* updates: ftp.iij.ad..jp

Finally, run yum update if needed.

# yum -y update

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Reference Information

・How to Automatically Select Fast Repositories with yum - @IT

・[Linux]# yum -y install yum-fastestmirror for yum acceleration : uechoco@blog

That’s all from the Gemba.