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Configure alternate access mappings for SharePoint Server

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APPLIES TO: yes-img-132013 yes-img-162016 yes-img-192019 yes-img-seSubscription Edition no-img-sopSharePoint in Microsoft 365

Each web application can be associated with a collection of mappings between internal and public URLs. Both internal and public URLs consist of the protocol and domain portions of the full URL (for example, https://www.fabrikam.com). A public URL is what users type to access the SharePoint site, and that URL is what appears in the links on the pages. Internal URLs are in the URL requests that are sent to the SharePoint site. Many internal URLs can be associated with a single public URL in multi-server farms (for example, when a load balancer routes requests to specific IP addresses to various servers in the load-balancing cluster).

Each web application supports five collections of mappings per URL. The five collections correspond to five zones (default, intranet, extranet, Internet, and custom). When the web application receives a request for an internal URL in a particular zone, links on the pages returned to the user have the public URL for that zone. For more information, see Plan alternate access mappings for SharePoint 2013.

Manage alternate access mappings

  1. On the SharePoint Central Administration website, click System Settings.

  2. On the System Settings page, in the Farm Management section, click Configure alternate access mappings.

For information about how to perform this procedure using a Microsoft PowerShell cmdlet, see New-SPAlternateUrl.

Add an internal URL

  1. On the Alternate Access Mappings page, click Add Internal URLs.

  2. If the mapping collection that you want to change is not specified, then choose one. In the Alternate Access Mapping Collection section, on the Alternate Access Mapping Collection menu, click Change alternate access mapping collection.

  3. On the Select an Alternate Access Mapping Collection page, click a mapping collection.

  4. In the Add internal URL section, in the URL protocol, host and port box, type the new internal URL (for example, https://www.fabrikam.com).

  5. In the Zone list, click the zone for the internal URL.

  6. Click Save.

Edit or delete an internal URL

Note

You can't delete the last internal URL for the default zone.

  1. On the Alternate Access Mappings page, click the internal URL that you want to edit or delete.

  2. In the Edit internal URL section, change the URL in the URL protocol, host and port box.

  3. In the Zone list, click the zone for the internal URL.

  4. Do one of the following:

  • Click Save to save your changes.

  • Click Cancel to discard your changes and return to the Alternate Access Mappings page.

  1. Click Delete to delete the internal URL.

For information about how to perform this procedure using a Microsoft PowerShell cmdlet, see Remove-SPAlternateUrl.

Edit public URLs

Note

There must always be a public URL for the default zone.

  1. On the Alternate Access Mappings page, click Edit Public URLs.

  2. If the mapping collection that you want to change is not specified, then choose one. In the Alternate Access Mapping Collection section, on the Alternate Access Mapping Collection menu, click Change alternate access mapping collection.

  3. On the Select an Alternate Access Mapping Collection page, click a mapping collection.

  4. In the Public URLs section, you can add new URLs or edit existing URLs in any of the following text boxes:

  • Default

  • Intranet

  • Extranet

  • Internet

  • Custom

  1. Click Save.

Map to an external resource

You can also define mappings for resources outside intranet applications. To do so, you must supply a unique name, initial URL, and a zone for that URL. (The URL must be unique to the farm.)

  1. On the Alternate Access Mappings page, click Map to External Resource.

  2. On the Create External Resource Mapping page, in the Resource Name box, type a unique name.

  3. In the URL protocol, host and port box, type the initial URL.

  4. Click Save.