Openldap

LDAP is a read-optimized, scalable(distributed) way of storing data with 2x goals:

• sharing information with unrelated services
• fine-grained, filter-rule based authorization to every stored attribute

It does this by:

• Storing information using pre-defined, standardized Attributes (posixPassword, username, employeeNumber, mail, ipaddress, port, ...)
• Create/ReUse groups of attributes called ObjectClasses (Person, Organization, Account, ...)
• Entries are instances of these ObjectClasses.
• Entries are stored in a hierarchy, which can be anything you'd like.

Using this stored information, LDAP can be used to integrate several entirely unrelated services.

• It can be used to handle multiple authentication methods for single-sign-in (SSO)
• It can be used to share user images, descriptions etc with various programs
• It can use to determine what resources (websites, services, machines) a user should have permission to use.

Documentation

official docs

https://www.openldap.org/doc/admin24/

Locations

/var/lib/ldap		location of ldap data (generally in bdb files)
/etc/ldap/slapd.d		location of ldap configuration

Notes

openldap install

openldap tutorials

openldap concepts

openldap components

openldap configuration

openldap usage

openldap urls

Integrations

phpldapadmin

Install

sudo apt install \
    slapd \
    ldap-utils

Creating a new Database:

• http://www.dangtrinh.com/2013/10/ldap-create-new-ldap-directory.html
• https://stackoverflow.com/questions/19537319/change-basedn-in-openldap

Resources

https://hynek.me/articles/ldap-a-gentle-introduction/	ldap intro
http://www.allgoodbits.org/articles/view/29	nginx ldap authentication
https://wiki.archlinux.org/index.php/OpenLDAP	arch wiki page for openldap
https://help.ubuntu.com/lts/serverguide/openldap-server.html	ubuntu wiki page for openldap

Videos

https://www.youtube.com/watch?v=GSP2Xzl6ncc

intro video