LDAP Consulting

Zwiegnet provides comprehensive LDAP consulting for organizations needing robust, scalable directory services. We have particular depth and proficiency in OpenLDAP — the most flexible and widely deployed open-source LDAP server — along with strong expertise in 389 Directory Server and Red Hat Identity Management (IdM/FreeIPA).

Whether you're building a new directory, migrating from existing systems, or optimizing performance and security, we deliver tailored solutions.

Our LDAP services include:

• OpenLDAP Expertise – Advanced schema design, overlay configuration (memberOf, ppolicy, refint, unique, syncprov), multi-master replication, performance tuning, and custom backends.
• 389 Directory Server & Red Hat IdM – Implementation, replication topologies, integration with Kerberos, DNS, and certificate services.
• Directory Design & Schema – Custom attribute and object class development, standard schema extensions, and data modeling.
• Migration Services – From proprietary directories (Active Directory, Novell eDirectory, Sun Directory) to open-source LDAP solutions.
• High Availability & Replication – Multi-master MMR, syncrepl delta sync, load balancing, and failover strategies.
• Security & Hardening – TLS/SSL configuration, SASL/GSSAPI authentication, access control lists (ACI), password policies, and audit logging.
• Integration – Linux/Unix authentication (PAM/NSS), Windows SSO via Samba/AD trust, application integration (Apache, NGINX, Postfix, Dovecot).
• Performance Tuning & Monitoring – Indexing strategies, cache optimization, monitoring with Prometheus/Grafana or SNMP.
• Troubleshooting & Support – Rapid diagnosis of replication conflicts, search performance issues, and authentication failures.
• Backup & Disaster Recovery – Reliable backup strategies and tested restore procedures.

From small OpenLDAP deployments to large-scale enterprise directories, we bring proven experience and a focus on open standards.

Located between Madison and Milwaukee, Wisconsin since 2009 — direct access to highly proficient OpenLDAP specialists and seasoned directory engineers.