What is alternate access mappings?
Alternate access mappings allow you to expose a web application in as many as five different zones, with a different IIS website backing each zone. Note. Some people mistakenly refer to this as having up to five different web applications sharing the same content databases.
What is alternate access mapping in SharePoint 2016?
Alternate Access mapping is a Service, which helps SharePoint, that receives a request to the Web Application with an internal URL to one of the five zones to return the pages, which contain links to the public URL. Many internal URLs can be associated with a single public URL.
How to change the alternate access mapping collection?
On the Alternate Access Mappings page, on the Alternate Access Mapping Collection menu, click Change Alternate Access Mapping Collection. In the Select An Alternate Access Mapping Collection dialog, click the alternate access mapping collection for which you want to change the default zone URL.
How to configure alternate access mapping in SharePoint?
You also need to configure a matching URL for alternate access mappings. If this is a URL that end users will use to reach your site, make it a public URL. If this is a URL that a reverse proxy server will use to forward requests to your site, make it an internal URL.
Do you need a public URL for alternate access mappings?
If you are using an FQDN URL to reach your Web application, you need to configure that domain name in DNS. You also need to configure a matching URL for alternate access mappings. If this is a URL that end users will use to reach your site, make it a public URL.
Why are my SharePoint access maps not working?
The most common cause of alternate access mapping-related issues is administrators not realizing that they need to configure alternate access mappings in the first place. It is certainly understandable because alternate access mappings are a new requirement in Windows SharePoint Services 3.0.