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3098 articles

Blog illustration with latest articles, tutorials, guides, and how-to content across Linux and DevOps topics
system-administration

Configure Global, Subtree and User Password Policies in 389 Directory Server

Configure global, subtree, and user password policies in 389 Directory Server with dsconf pwpolicy and localpwp, enforce complexity and expiration, test precedence, and manage temporary passwords.

Deepak Prasad22 min read
system-administration

Test ACI Permissions with Get Effective Rights in 389 Directory Server

Use Get Effective Rights in 389 Directory Server to test ACI permissions with ldapsearch, interpret entryLevelRights and attributeLevelRights, and verify results with real LDAP operations.

Deepak Prasad20 min read
system-administration

Restrict Anonymous Access in 389 Directory Server

Restrict 389 Directory Server anonymous LDAP access with nsslapd-allow-anonymous-access, narrow ldap:///anyone ACIs, disable unauthenticated empty-password binds, and verify root DSE, suffix, and public-attribute …

Deepak Prasad15 min read
system-administration

Configure Macro ACIs in 389 Directory Server

Configure 389 Directory Server macro ACIs with ($dn), [$dn], and ($attr.attributeName) to reduce duplicate rules and enforce tenant isolation.

Deepak Prasad18 min read
system-administration

Configure Virtual List View Indexes in 389 Directory Server

Configure 389 Directory Server Virtual List View indexes with dsconf backend vlv-index, test server-side sorting and VLV controls with ldapsearch, and verify vlvUses and access-log usage.

Deepak Prasad16 min read
system-administration

Configure TLS, STARTTLS and LDAPS in 389 Directory Server

Enable LDAPS and STARTTLS in 389 Directory Server, import server and CA certificates, configure client trust, and verify TLS with ldapsearch and openssl.

Deepak Prasad17 min read
system-administration

Create Virtual Directory Views in 389 Directory Server

Create virtual directory tree views in 389 Directory Server with nsView and nsViewFilter, nested filters, LDAP search verification, indexing, limitations, and troubleshooting.

Deepak Prasad12 min read
system-administration

Generate LDAP Test Data with dsctl ldifgen

Generate synthetic LDAP test data with dsctl ldifgen in 389 Directory Server—users, groups, CoS, roles, modification workloads, and nested trees—then review and load LDIF safely.

Deepak Prasad16 min read
system-administration

Manage Users and Groups in 389 Directory Server

Prepare ou=People and ou=Groups, create POSIX users and static groups with dsidm, set passwords, lock accounts, manage membership, verify LDAP attributes, and delete entries safely in 389 Directory Server.

Deepak Prasad14 min read
system-administration

Create a 389 Directory Server Instance with dscreate and an INF File

Generate a dscreate INF template, configure instance and backend settings, protect credentials, run dscreate from-file, and verify the new 389 Directory Server suffix.

Deepak Prasad12 min read
system-administration

Restore a Replicated 389 Directory Server Safely

Recover a failed 389 Directory Server supplier, hub, or consumer with safe restore, replica reinitialization, RUV checks, and replication validation.

Deepak Prasad22 min read
system-administration

Export and Import 389 Directory Server Data with LDIF

Export and import 389 Directory Server backend data with dsconf and dsctl LDIF tools, validate migration files, prepare the destination suffix, and verify users and groups after import.

Deepak Prasad18 min read
system-administration

Tune Large LDAP Groups and memberOf Performance in 389 Directory Server

Tune large LDAP groups in 389 Directory Server with safe membership indexes, scoped memberOf processing, fixup tasks, and repeatable benchmarks.

Deepak Prasad19 min read
system-administration

Configure Low Disk Space Protection in 389 Directory Server

Configure 389 Directory Server disk monitoring, thresholds, grace periods, read-only protection, safe testing, and low-space recovery.

Deepak Prasad20 min read
system-administration

Enforce Unique LDAP Attributes in 389 Directory Server

Configure 389 Directory Server Attribute Uniqueness with dsconf to reject duplicate mail, uid, and employeeNumber values across subtrees.

Deepak Prasad16 min read
system-administration

Configure 389 Directory Server Indexes for Faster LDAP Searches

Configure 389 Directory Server indexes with dsconf backend index, detect notes=A and notes=U unindexed searches, and reindex online or offline for faster LDAP filters.

Deepak Prasad14 min read
system-administration

Configure Managed Entries and Linked Attributes in 389 Directory Server

Configure Managed Entries to create companion LDAP entries and Linked Attributes to maintain reverse DN relationships in 389 Directory Server.

Deepak Prasad20 min read
system-administration

Assign Unique UID and GID Numbers with the 389 DS DNA Plugin

Configure the 389 Directory Server Distributed Numeric Assignment plug-in for automatic uidNumber and gidNumber allocation, magic regeneration values, separate or shared ranges, multi-supplier range transfer, monitoring, …

Deepak Prasad20 min read
system-administration

Automatically Add Users to Groups with 389 DS Auto Membership

Configure 389 Directory Server Auto Membership with regex rules, fallback groups, fixup cleanup, and dry-run testing for static group assignment.

Deepak Prasad16 min read
system-administration

Configure Referential Integrity in 389 Directory Server

Enable and configure the 389 Directory Server Referential Integrity plug-in to remove stale DN references after delete, update member and uniqueMember after rename or move, scope processing, index attributes, audit …

Deepak Prasad19 min read
system-administration

Configure the 389 Directory Server memberOf Plugin

Configure the 389 Directory Server memberOf plug-in for member and uniqueMember groups, nested membership, scopes, fixup tasks, and replication.

Deepak Prasad19 min read
system-administration

Disable, Reactivate, and Automatically Inactivate User Accounts in 389 Directory Server

Disable and reactivate LDAP user accounts in 389 Directory Server with dsidm account lock, nsAccountLock, role lock, and the Account Policy plug-in for lastLoginTime tracking and automatic inactivity enforcement.

Deepak Prasad18 min read
system-administration

Enable and Verify FIPS Mode in 389 Directory Server

Prepare a FIPS-enabled host, enable NSS FIPS mode for 389 Directory Server, audit cryptographic compatibility, verify TLS and LDAP, and plan rollback.

Deepak Prasad21 min read
system-administration

Configure Client Certificate Authentication in 389 Directory Server

Configure client certificate authentication in 389 Directory Server with certmap.conf, trust the client CA, test SASL EXTERNAL over LDAPS and STARTTLS, and verify userCertificate matching.

Deepak Prasad17 min read
system-administration

Manage, Renew, and Back Up 389 Directory Server Certificates

Inventory, renew, replace, back up, and restore 389 Directory Server TLS certificates in the instance NSS database after LDAPS and STARTTLS are already enabled.

Deepak Prasad27 min read
system-administration

Require Secure LDAP Connections with TLS and SSF in 389 Directory Server

Reject insecure LDAP simple binds in 389 Directory Server, enforce a minimum SSF, preserve root DSE and LDAPI access, and verify allowed connections.

Deepak Prasad17 min read
system-administration

Advanced 389 Directory Server ACI Targets and Bind Rules

Configure advanced 389 Directory Server ACIs with targetfilter, targattrfilters, target_from and target_to, userattr, groupdn filters, IP and DNS rules, SSF, time limits, and Boolean bind expressions.

Deepak Prasad15 min read
system-administration

389 Directory Server ACI Configuration with Practical Examples

Learn 389 Directory Server ACI syntax, placement, and access rights with ldapmodify examples for userdn and groupdn read, write, add, and delete permissions plus troubleshooting.

Deepak Prasad19 min read
system-administration

Create Delegated Administrators with 389 Directory Server ACIs

Delegate 389 Directory Server administration with groupdn ACIs for read-only, help-desk, user, group, and department roles without sharing Directory Manager credentials.

Deepak Prasad25 min read
system-administration

Encrypt Sensitive Attributes in 389 Directory Server

Enable per-backend attribute encryption in 389 Directory Server with dsconf backend attr-encrypt, export and reimport with dsctl ldif2db --encrypted, verify LDAP access, and plan certificate and replication dependencies.

Deepak Prasad12 min read