Administering Ambari

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Download the Ambari repository on Debian 9

To install Ambari agents, first download the Ambari repository to a host in your cluster.

On a server host that has Internet access, use a command line editor to do the following steps.

Log in to your host as root.
Download the Ambari repository file to a directory on your installation host.
```
wget -O /etc/apt/sources.list.d/ambari.list http://public-repo-1.hortonworks.com/ambari/debian9/2.x/updates/2.7.4.0/ambari.list
apt-key adv --recv-keys --keyserver keyserver.debian.com B9733A7A07513CAD
apt-get update
```
Note
Do not modify the ambari.list file name. This file is expected to be available on the Ambari Server host during Agent registration.
Confirm that Ambari packages downloaded successfully by checking the package name list.
```
apt-cache showpkg ambari-server
                     apt-cache showpkg ambari-agent
                     apt-cache showpkg ambari-metrics-assembly
```
You should see the Ambari packages in the list.