Best Microsoft Active Directory Alternatives in 2021

    Microsoft Active Directory is described as 'Active Directory (AD) is a directory service that Microsoft developed for Windows domain networks and included in most Windows Server operating systems as a set of processes and services'. There are more than 10 alternatives to Microsoft Active Directory for a variety of platforms, including Linux, Mac, Windows, Self-Hosted solutions and BSD. The best alternative is Zentyal. It's not free, so if you're looking for a free alternative, you could try Univention Corporate Server or Samba. Other great apps like Microsoft Active Directory are FreeIPA (Free, Open Source), SambaBox (Paid), OpenLDAP (Free, Open Source) and JumpCloud (Paid).

    This page was last updated Oct 15, 2021

    1. Zentyal is a native Microsoft Active Directory implementation on Linux incorporating all the network services required in a small and medium business environment: Directory & Domain Server, Mail Server, Gateway and Infrastructure Server.
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      Zentyal vs Microsoft Active Directory opinions
      Most users think Zentyal is a great alternative to Microsoft Active Directory.
      Arffeh 100% drop-in replacement, tried and tested by yours truely.
      Positive comment almost 6 years ago

      0
      pitou It's free and easy to use.
      Positive comment over 4 years ago

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    2. Univention Corporate Server is a pre-configured platform to operate and manage server applications and complete IT infrastructures free of charge.
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      Univention Corporate Server vs Microsoft Active Directory opinions
      Almost everyone thinks Univention Corporate Server is a great alternative to Microsoft Active Directory.
      it works flawless and it's free as long you don't need commercial support. Companies can get professional support from UCS or UCS Partners. It is the most complete alternative to MS ADS.
      Positive comment about 2 years ago

      0


      • FreeOpen Source
      • Mac
      • Linux
      • BSD
      Samba is the standard Windows interoperability suite of programs for Linux and Unix. Since 1992, Samba has provided secure, stable and fast file and print services for all clients using the SMB/CIFS protocol, such as all versions of DOS and Windows, OS/2, Linux and many others.
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      Samba vs Microsoft Active Directory opinions
      Almost everyone thinks Samba is a great alternative to Microsoft Active Directory.
      It's literally a reimplementation of AD on Linux. Samba has been around for many years and is trusted by thousands of admins to provide seamless Windows interoperability.
      Positive comment almost 2 years ago

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    3. FreeIPA is an integrated security information management solution combining Linux (Fedora), 389 Directory Server, MIT Kerberos, NTP, DNS, Dogtag (Certificate System). It consists of a web interface and command-line administration tools.
      FreeIPA vs Microsoft Active Directory opinions
      Almost everyone thinks FreeIPA is a great alternative to Microsoft Active Directory.
      not only completely free its the only one i implimented and joined linux hosts to it. all the rest failed to deliver.
      Positive comment over 1 year ago

      0
    4. SambaBox is an integrated enterprise domain appliance which works flawlessly with Windows AD environment. SambaBox offers, Integrated DNS, DHCP, CA and SaltStack with web based management on hight secure environment.
      SambaBox vs Microsoft Active Directory opinions
      pros, cons and recent comments
      SambaBOX offers more tools than standart Microsoft Active Directory like CA, DHCP, SNMP. Best part is installation takes just minutes.
      Positive comment about 1 month ago

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      • FreeOpen Source
      • Mac
      • Linux
      • BSD
      OpenLDAP Software is an open source implementation of the Lightweight Directory Access Protocol. The suite includes: slapd - stand-alone LDAP daemon (server) libraries implementing the LDAP protocol, and utilities, tools, and sample clients.
    5. Cloud-based directory services. Alternative to Microsoft Active Directory. Provides LDAP-as-a-Service, RADIUS-as-a-Service. Authenticates, authorizes, and manages employees, their devices and IT applications.
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      • FreeOpen Source
      • Linux
      • CentOS
      • Fedora
      Enterprise-class open source Linux LDAP server. Hardened by real-world use, full-featured, supports multi-master replication. 389 DS can be downloaded for free and set up in less than an hour using the graphical console.
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    6. Azure Active Directory is a comprehensive identity and access management cloud solution that provides a robust set of capabilities to manage users and groups.
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      • FreeOpen Source
      • Linux
      Go-lang LDAP Authentication (GLAuth) is a secure, easy-to-use, LDAP server w/ configurable backends. - Centrally manage accounts across your infrastructure - Centrally manage SSH keys, Linux accounts, and passwords for cloud servers.
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    Showing 10 of 14 alternatives