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Directory Services: Microsoft Active Directory   

Managed Microsoft Active Directory Service

Microsoft Active Directory (AD) is a directory service developed by Microsoft for Windows domain networks. It is included in most Windows Server operating systems as a set of processes and services. Over a number of years Active Directory has become an umbrella title for a broad range of directory-based identity-related services.

The service authenticates and authorises all users and computers in a Windows domain type network-assigning and enforcing security policies for all computers and installing or updating software. For example, when a user logs into a computer that is part of a Windows domain, Active Directory checks the submitted password and determines whether the user is a system administrator or normal user.

CenturyLink’s Managed Directory Service provides the licensing, installation, configuration, administration, monitoring, maintenance and support for the Active Directory software.

CenturyLink provides support for a range of Microsoft Operating Systems including:

  • Microsoft Active Directory 2008
  • Microsoft Active Directory 2008 R2
  • Microsoft Active Directory 2012
  • Microsoft Active Directory 2012 R2

Supported Active Directory Services include:

  • Microsoft Active Directory, Verzeichnisdienste
  • Active Directory Backups, Snapshots and Recycle Bin

Deployment Scenarios include

  • Stand-Alone Forest
  • Extended Domain
  • Child Domain


  • Software installation and configuration

  • Monitoring and problem resolution on a 24/7 basis

  • Proactive alert notification to customer technical contacts

  • Software updates


  • Keeping up with Active Directory change requests on any system can be a major challenge. Whether you need help managing patches or user licenses, CenturyLink takes care of the heavy lifting of client's Active Directory and ensures the system is always up to date.


99.99% availability for 2 or more subscriptions.
98.5% availability for 1 subscription.

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geographic availability

Australia, Canada, China, Germany, Hong Kong, India, Japan, Singapore, United Kingdom, United States