My Secret Life as a Spaghetti Coder
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LDAP in Ruby is better than LDAP in C#/.NET. Looking at it, I can't say it's much different minus the cruft from .NET.

Lightweight? Seriously?

Experiencing it while actually writing code, it's very different. I can't explain it, except to show it to you and tell you try it.

Ruby LDAP code is at github even though existing solutions with good examples point you to what are now broken links.

To install (despite README.txt saying otherwise):

gem install ruby-net-ldap

And here's some LDAP login/authorization/auth code:
require 'rubygems'

require 'net/ldap'

ldap = = ""

ldap.port = "389"

username = "human_interest_stories"
password = "obituary"

ldap.auth "uid=#{username},ou=users,dc=example,dc=com", password

is_authorized = ldap.bind # returns true if auth works, false otherwise (or throws error if it can't connect to the server)

#searching the LDAP from Damana (linked above too)

filter = Net::LDAP::Filter.eq( "uid", username )
#attrs = ["ou" , "objectClass"] # you can specify attributes
attrs = [] :base => "ou=users,dc=example,dc=com", :attributes => attrs, :filter => filter, :return_result => true ) do |entry|
    puts entry.dn
    entry.attribute_names.each do |n|
        puts "#{n} = #{entry[n]}"


Hope it helps.

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Leave a comment

Great post, I've been looking for a couple of ours for a snippet for connecting to Active Directory from ruby and your post did the trick. :)

Posted by Ahmed El.Hussaini on Feb 01, 2010 at 05:02 AM UTC - 5 hrs

This helped me greatly. Thanks for the easy to understand example.

Posted by Jason on Jun 22, 2012 at 09:57 AM UTC - 5 hrs

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