Configuring Host Names

Run the following command on node 1 to view the host name:
```
hostname
```
If the default host name is localhost, run the following commands to change the host name to distinguish nodes 1, 2, and 3:
```
hostname host-XX-XX-XX
logout
hostname
```
Run the following command on node 2 to view the host name:
```
hostname
```
Run the following command on node 3 to view the host name:
```
hostname
```
Configure host names.
Add the IP addresses and host names to the hosts file on each node (nodes 1 to 3).
```
vim /etc/hosts
```

Parent topic: Deploying an etcd Cluster