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While working on our custom ADFS login component and deployed this version to our DTAP street, we saw different behaviours when signing out of a site, under different circumstances. Wen users tried to logout via the page "/_layouts/signout.aspx" users sometimes where redirected back to the...
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In SharePoint 2010 the possibility of claims based authentication was introduced. The out of the box experience of this functionality is often OK, for example in cases of corporate intranets and extranets, but it doesn’t always fulfill the requirements of internet facing websites which require...
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Rockford Lhotka has writen about permission-based authorization versus role-based authorization . He describes how he is abusing the principal IsInRole(..) method. This is definitely wrong and should never be implemented that way! Besides that it could result in serious performance issues! Image a system...