參考安裝步驟:
http://alvinalexander.com/linux-unix/centos-yum-installing-only-security-updates
# install the security plugin yum -y install yum-plugin-security # display all security-related updates yum --security check-update # list all bugs fixed yum updateinfo list bugzillas # summary of advisories yum updateinfo summary # upgrade all packages with security info to latest available package yum --security update # upgrade all packages with security info to last security update # (as opposed to the latest possible update) yum --security update-minimal # help man 8 yum-security