Solved

Securing LDAP between httpd and Microsoft 2008 R2 Active Directory

Posted on 2013-10-22
3
536 Views
Last Modified: 2013-10-22
I have a linux RHEL 6 webserver we have set up to host multiple websites for our orginization. The server is a virtual machine, and exists on a hosted cloud. We also have, as one of the virtual machines in the cloud, a replicated domain controller with active directory.  One of the websites we host is for employees only, and is secured by a LDAP connection to the active directory server we have in the cloud.

I have this working fine, but I can't figure out how to secure the LDAP connection. Right now its plain text, but I want it to be over SSL or TLS.

What I have done so far is tried exporting a certificate key from the ad server, and I also tried one of our certificates from our local certificate authority. I've placed the crt on the linux machine, and then placed a string in the httpd.conf that points to the crt. I've added an s to ldap:// so it looks like ldaps://, and i've tried it on the 686 port for ssl, and also leaving it on the 389 port. the ports are open from what I can tell using telnet and speaking with our cloud hosting provider (making sure the firewalls are not blocking anything).

SO regular LDAP works fine as it is configured, but I'm missing something about securing it. I'm not familiar with encryption and certificates, and my IT director isn't sure either...and its just the two of us.

Can someone help me figure this all out?

Here is how the httpd.conf looks like:


    AuthType Basic
    AuthName "Secure Employee Portal"
    AuthBasicProvider ldap
    AuthLDAPURL "ldap://adserver.cloudcompany.net/ou=User Accounts,dc=mydomain,dc=local?sAMAccountName?sub?(objectClass=*)"
    AuthLDAPBindDN "CN=webserver ldap,OU=Users (Service Accounts),DC=mydomain,DC=local"
    AuthLDAPBindPassword binduserpassword
    Require valid-user

Open in new window


Let me know how I can help make this clearer as well. The real bottom line issue here is that I do not know how to set up this LDAP connection so it is secure. I think everything is there for the taking, but all the stuff i find online either doesnt work, or is not related to what I'm trying to do. If you can point me to a clear resource on how to get this going, that would be great. If your familiar with this sort of thing and can talk me through it a little at a time, I would greatly appreciate it. Thank you!
0
Comment
Question by:dchevalier
  • 2
3 Comments
 
LVL 16

Accepted Solution

by:
gurutc earned 500 total points
ID: 39591457
This link has your answer:

http://pvradu.blogspot.com/2011/06/apache-22-ldaps-authentication-in.html

There's cert setup, httpd.conf setup, and virtual hosts setup involved.

Good Luck,

- gurutc
0
 

Author Closing Comment

by:dchevalier
ID: 39591897
I needed to modify this a little because ldap.conf isnt in my /etc directory, but instead exists in the /etc/openldap/ directory. Also, I used the cert that was generated from my domains certificate authority, under client authorization and trusted root certification. These two elements I had to figure out. My LDAP strings in the httpd.conf are a little different then what was shown in the configuration from that link, but it works none the less. Thanks gurutc for sharing that link - made my day.
0
 

Author Comment

by:dchevalier
ID: 39592184
This stopped working about an hour or so after I had proclaimed victory. I'm just updating this in case this solved conclusion was a false positive. I'll keep this updated.

EDIT 1: Start working again when I commented out these:

#LDAPSharedCacheSize 500000

#LDAPCacheEntries 128

#LDAPCacheTTL 60

#LDAPOpCacheEntries 128

#LDAPOpCacheTTL 60

#LDAPConnectionTimeout 10

Open in new window

0

Featured Post

Better Security Awareness With Threat Intelligence

See how one of the leading financial services organizations uses Recorded Future as part of a holistic threat intelligence program to promote security awareness and proactively and efficiently identify threats.

Join & Write a Comment

Trying to figure out group policy inheritance and which settings apply where can be a chore.  Here's a very simple summary I've written which might help.  Keep in mind, this is just a high-level conceptual overview where I try to avoid getting bogge…
Many companies are looking to get out of the datacenter business and to services like Microsoft Azure to provide Infrastructure as a Service (IaaS) solutions for legacy client server workloads, rather than continuing to make capital investments in h…
Sending a Secure fax is easy with eFax Corporate (http://www.enterprise.efax.com). First, Just open a new email message.  In the To field, type your recipient's fax number @efaxsend.com. You can even send a secure international fax — just include t…
When you create an app prototype with Adobe XD, you can insert system screens -- sharing or Control Center, for example -- with just a few clicks. This video shows you how. You can take the full course on Experts Exchange at http://bit.ly/XDcourse.

708 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

12 Experts available now in Live!

Get 1:1 Help Now