1.添加epel的YUM源 cd /etc/yum.repos.d/ rpm --import //mirrors.ustc.edu.cn/fedora/epel/RPM-GPG-KEY-EPEL-6 wget //lug.ustc.edu.cn/wiki/_export/code/mirrors/help/epel?codeblock=0 && mv epel?codeblock=0 epel.repo wget //lug.ustc.edu.cn/wiki/_export/code/mirrors/help/epel?codeblock=1 && mv epel?codeblock=1 epel-testing.repo 2、安裝(zhuang): yum install fail2ban
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