What permissions are required for enumerating users groups in Active Directory

I have a .net web application which needs to obtain the groups a user is a member of in Active Directory.

Todo this I am using the memberOf attribute on the users records.

I need to know the permissions required to read this attribute on all users re开发者_如何学Ccords.

Currently I am getting inconsistent results when trying to read this attribute. For example I have a user group of 30 users in the same OU path. Using my own credentials to query AD - I can read the memberOf attribute for some users but not others. I know all the users have a memberOf attribute set as I have checked when logged on with a domain admin account.

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solved by sysadmin1138 here - https://serverfault.com/questions/167371/what-permissions-are-required-for-enumerating-users-groups-in-active-directory