环境部署
wget http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
wget http://rpms.famillecollet.com/enterprise/remi-release-6.rpm
sudo rpm -Uvh remi-release-6*.rpm epel-release-6*.rpm
基本常识
-
Xshell连接linux（deepin）时提示ssh服务器拒绝了密码，请再试一次
PermitRootLogin yes -
centos修改主机名的正确方法
hostnamectl set-hostname centos77.magedu.com
Debug
Not using downloaded repomd.xml because it is older than what we have:
yum clean all && yum check-update
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