一、涉及内容 {#%E4%B8%80%E3%80%81%E6%B6%89%E5%8F%8A%E5%86%85%E5%AE%B9}

1.1、群晖NAS-Active Back for Business功能 【官网直达】 {#1.1%E3%80%81%E7%BE%A4%E6%99%96nas-active-back-for-business%E5%8A%9F%E8%83%BD-%E3%80%90%E5%AE%98%E7%BD%91%E7%9B%B4%E8%BE%BE%E3%80%91}

1.2、Rsync功能 【官网直达】 {#1.2%E3%80%81rsync%E5%8A%9F%E8%83%BD-%E3%80%90%E5%AE%98%E7%BD%91%E7%9B%B4%E8%BE%BE%E3%80%91}

二、安装rsync {#%E4%BA%8C%E3%80%81%E5%AE%89%E8%A3%85rsync}

2.1、更新epel {#2.1%E3%80%81%E6%9B%B4%E6%96%B0epel}

epel-release软件包是为了使用Extra Packages for Enterprise Linux (EPEL)源而存在的。EPEL源是Red Hat企业级Linux（RHEL）和CentOS等基于RHEL的操作系统的附加软件源。在Ubuntu中，由于它使用不同的软件包管理系统（APT），因此epel-release软件包并不适用，所以Ubuntu中不需要更新epel。

2.1.1、Debian安装epel {#2.1.1%E3%80%81debian%E5%AE%89%E8%A3%85epel}

apt install epel-release

2.1.2、CentOS安装epel {#2.1.2%E3%80%81centos%E5%AE%89%E8%A3%85epel}

yum install epel-release

2.2、Ubuntu/Debian安装rsync {#2.2%E3%80%81ubuntu%2Fdebian%E5%AE%89%E8%A3%85rsync}

sudo apt install rsync   #安装
dpkg -l rsync   #查看

2.3、CentOS安装rsync {#2.3%E3%80%81centos%E5%AE%89%E8%A3%85rsync}

sudo yum install rsync   #安装
rpm -qa | grep rsync   #查看

三、安装并配置Active Back for Business {#%E4%B8%89%E3%80%81%E5%AE%89%E8%A3%85%E5%B9%B6%E9%85%8D%E7%BD%AEactive-back-for-business}

四、取消备份 {#%E5%9B%9B%E3%80%81%E5%8F%96%E6%B6%88%E5%A4%87%E4%BB%BD}