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Difference between LDAP and RADIUS

  • Last Updated : 15 Dec, 2020

1. Lightweight Directory Access Protocol (LDAP) :
LDAP stands for Lightweight Directory Access Protocol. It is a protocol that’s used for locating anyone to locate individuals, organizations, and other devices during a network regardless of being on public or corporate internet. It is used as Directories-as-a-Service and is the grounds for Microsoft building Activity Directory.

Features of LDAP :

  • It implements an open-source protocol with a flexible architecture.
  • Operates over TCP/IP and SSL directly.
  • LDAP is a self-automated protocol.
  • Provides extensive support across industries.

2. Remote Authentication Dial-In User Service (RADIUS) :
RADIUS stands for Remote Authentication Dial-In User Service. It is a network protocol that provides ample centralized Authentication, Accounting, and Authorization for the users that use and network services. The working of protocol begins when the user requests access to network resources, where the RADIUS server encrypts the credentials which are entered by the user. After this, the credentials are mapped through the local database, after this, if all checks are true user is granted access.

Features of RADIUS :

  • Its server can acts as a proxy client to other Radius Servers.
  • Communication between client and server authenticated by a shared key.
  • It supports PPP, PAP, and CHAP protocols for authentication purposes.
  • It runs using UDP and is a stateless protocol.

Differences between LDAP and RADIUS :

1.It is short called as Lightweight Directory Access Protocol.It is short used for Remote Authentication Dial-In User Service.
2.LDAP is used for authorizing the details of the records when accessed.It is used for centralized Authentication, Accounting, and Authorization for the user’s information.
3.It is not open-source but it possesses implementation such as Open LDAP which are open-source.It is not open-source but it possesses implementation such as Free RADIUS which is open-source.
4.It supports two-factor authentication with RADIUS protocol.It does not provide two-way authentication, but can set two levels of privileges.
5.LDAP appends authentication in two options SASL or anonymous authentication.RADIUS provides authentication by RADIUS client also called NAS.
6.It renders authentication in multi-tier applications.It provides authentication in multi-tier applications.

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