"Activity" includes, but is not limited to:
- Signing in to GitHub Enterprise Server.
- Commenting on issues and pull requests.
- Creating, deleting, watching, and starring repositories.
- Pushing commits.
- Accessing resources by using a personal access token or SSH key.
Viewing dormant users
You can view a list of all dormant users who have not been suspended and who are not site administrators.
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From an administrative account on GitHub Enterprise Server, in the upper-right corner of any page, click .  
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If you're not already on the "Site admin" page, in the upper-left corner, click Site admin.  
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In the left sidebar, click Dormant users.  
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To suspend all the dormant users in this list, at the top of the page, click Suspend all.  
Determining whether a user account is dormant
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From an administrative account on GitHub Enterprise Server, in the upper-right corner of any page, click .  
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If you're not already on the "Site admin" page, in the upper-left corner, click Site admin.  
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In the search field, type the name of the user and click Search.  
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In the search results, click the name of the user.  
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In the User info section, a red dot with the word "Dormant" indicates the user account is dormant, and a green dot with the word "Active" indicates the user account is active.    
Configuring the dormancy threshold
The dormancy threshold is the length of time a user must be inactive to be considered dormant. The default dormancy threshold is 90 days, however you can customize the dormancy threshold for your GitHub Enterprise Server instance.
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In the top-right corner of GitHub Enterprise Server, click your profile photo, then click Enterprise settings.  
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In the enterprise sidebar, click Policies.  
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In the enterprise account sidebar, click Settings.  
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Under Policies, click Options.  
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Under "Dormancy threshold", use the drop-down menu, and click the desired dormancy threshold. 