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ssh免密登陆 1. 首先查看是否已经安装ssh [hadoop@master ~]$ ssh localhost The authenticity of host 'localhost (::1)' can't be established. ECDSA key fingerprint is SH 阅读全文
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centos安装python3.7 centos编译安装python3.7 1.安装依赖，下载python3.7 # 1、yum更新yum源 yum update # 2、安装Python 3.7所需的依赖否则安装后没有pip3包 yum install zlib-devel bzip2-devel 阅读全文
摘要：
查看yum源 yum repolist enabled 更换yum源 163yum源 备份当前yun源 cd /etc/yum.repos.d/ cp CentOS-Base.repo CentOS-Base-repo.bak 使用wget下载163yum源repo文件 wget http://mi 阅读全文