Therefore, storing old SIDs alongside new SIDs allows users to be identified across multiple domains.Īctivating the SID history during domain migration might trigger a “token bloat”, also referred to as a “ MaxTokenSize problem”. The problem is that the Access Control Lists ( ACL) that check for the required permissions still use the historical SID. ![]() While migrating domains, users may still need to access resources from the old infrastructure. through SAML-based SSO and real-time Active Directory sync with OneLogin, Okta and Ping Identity. The reason for storing the historical SID is to allow continued access to the previous domain. At the beginning of the 1980s, micro-computers started to arrive. Access to the most recent 90 days of message history. Objects such as user accounts may therefore have historical SIDs from previous domains on top of their current SID. Although the SID itself cannot be changed, objects can be assigned new SIDs if they are migrated from one Windows domain to another. As the name indicates, it contains the previous SID (security identifier) of the object. In Windows 2000, linked attributes replicated as a single block of data which led to issues around groups with large memberships. ![]() This is why I write all Properties and group. The SID history is a special attribute of Active Directory objects meant to support migration scenarios. Group history is only kept in domain controller event logs and only if you have AD object access auditing enabled. Read on to learn why and how Windows stores historical SID data.
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