Extracting the IP address for the Public CNAME and add it to /etc/hosts

About this task

Important: This procedure is only applicable if you created a Pseudo-Public DNS (PPDN) for Azure.

Procedure

Translate the public CNAME (for example, gi300.eastus.cloudapp.azure.com) to an IP address by running the following command.
```
nslookup  <api_cname>
```
For example,
```
nslookup  gi300-9gbsd.eastus.cloudapp.azure.com
```
The output is similar to:
To avoid errors, immediately modify /etc/hosts on the bastion server where the OCP installation process is working by adding the following line.
```
<discovered_ip_above> api.<cluster_name>.<zone_name>
```
For example,
```
<IP>   api.gi300.gi.priv.test
```
The output is similar to: