New-AzureWebsite Cmdlet -
New-AzureWebsite [[-Name] <String> ] [[-Location] <String> ] [[-Hostname] <String> ] [[-PublishingUsername] <String> ] [-Git] [-GitHub] [-GithubCredentials <PSCredential> ] [-GithubRepository <String> ] [-Slot <String> ] [ <CommonParameters>]
What is the difference between Name and HostName? In what situations we can use them?
Both parameters will determine the addresses of your website.
The Name represents the website name, and it will determine the default website address allocated by Azure (it is a subdomain of azurewebsites.net).
So having the next comand:
New-AzureWebsite -Name MySite
Will generate an azure website with the next address: MySite.azurewebsites.net.
The Hostname represents additional domain name to be attached to your website. You can use it in case you have your own domain name.
So modifying the previous command:
New-AzureWebsite -Name MySite -Hostname MyWebsite.com
It will generate an azure website with the next addresses: MySite.azurewebsites.net and MyWebsite.com.
The Azure Portal equivalent operation for Hostname parameter is explained here - Web Sites Custom Domain Names