Eviden DirX Directory

Identity & Access Management (IAM) underpins enterprise IT security by managing identities, user accounts, and entitlements across diverse systems and applications. Directory services sit at the center of IAM, providing a structured, centralized repository that streamlines authentication and authorization, enables frictionless application integration, and supports governance visibility. While traditional stand-alone, high-end directory servers are less commonly deployed than in the past, demand persists for advanced back-end directory services in high-scale scenarios such as B2C customer directories and healthcare patient directories.

Digital transformation has made services involving millions of users, devices, and IoT entities commonplace, increasing the need for directory back ends that are highly scalable, performant, robust, and available. Cloud-based directories can elastically scale across AWS, Azure, and GCP, yet delivering directory services remains challenging due to high availability requirements, application integration complexity, and constant exposure to cyber threats. Directory services also enforce access control policies through mechanisms like access control lists and role/policy-based entitlements. Despite reduced market hype, indicators suggest a potential uptick in enterprise-grade directory services where architectural demands make them a requirement.

Atos, via its business Eviden, offers the DirX suite, including DirX Directory, a high-end directory server with full LDAPv3 and X.500 functionality. DirX Directory supports a broad identity set (employees, customers, citizens, partners, contractors, subscribers, IoT) and provides replication, distribution, and multiple wire protocols. Version 9.0 emphasizes security enhancements (OpenSSL-based client authentication) and improved backup validation, adds a REST-access layer via the new dirxhttp server with OpenAPI 3.0 documentation and Swagger UI, and introduces a Corporate Directory Web Application built with Angular and extensible via an SDK. The product emphasizes high availability (shadowing, floating master), performance (DBAM kernel, caching), security (TLS/SSL/SASL, granular controls, auditing), and has a roadmap including containers, Kubernetes, new management UI, and FIDO2/passkeys.

• IAM manages identities and their access, including user accounts and entitlements across organizational systems and applications.
• Directory services provide a centralized repository for identity information and support authentication and authorization.
• Stand-alone, high-end directory servers are less widely deployed than in the past, but are still needed for high-end back-end use cases.
• Digital services increasingly involve millions of users, devices, and things, requiring scalable and highly robust identity back ends.
• Many cloud-based directories use elastic scaling in AWS, Azure, and GCP to adjust instances based on load.
• Eviden is an Atos business that brings together digital, cloud, big data, and security business lines and includes the DirX product suite.
• DirX Directory delivers full LDAPv3 and X.500 functionality and supports protocols including LDAP, DAP, DSP, DISP, and IDM.
• DirX Directory 9.0 adds a dirxhttp server providing LDAP access through a RESTful API documented in OpenAPI 3.0 with a Swagger UI.
• The dirxbackup tool saves, restores, and verifies a DBAM database and now supports automatic validation during import that can be switched on or off.
• The roadmap includes containerized deployment support (Docker), Kubernetes orchestration support, and planned FIDO2/passkeys authentication support.

• “Directory services are the core of IAM.”
• “As part of the Digital Transformation, delivering digital services involving millions of users, devices, and things has become the new normal for many businesses.”
• “These digital services require a strong identity back end, including directory services that can scale, that are highly performant, and that are extremely robust.”
• “Directory services are also prone to cyber threats, so they need to be updated and monitored constantly to avoid cyber-attacks.”
• “DirX Directory acts as a high-end directory server, delivering full LDAPv3 and x.500 functionality.”
• “DirX Directory can act as the secure identity store for employees, customers, citizens, partners, contractors, subscribers, and IoT entities.”
• “There is a new dirxhttp server added to the solution.”
• “This server is aimed at providing LDAP access through a RESTful API.”
• “DirX Directory supports high-performance shadowing to support high-availability configurations such as a floating-master concept.”
• “DirX Directory is a mature product, benefiting from continuous enhancements and a strong roadmap.”