Solved

Configuring Cisco ASA rules to allow DMZ 2 servers to see internal network

Posted on 2014-04-25
4
634 Views
Last Modified: 2015-06-01
ASA Firewall Rules need to do the following. (Using Cisco ASDM 6.3 console)

DMZ
1 x ADFS Proxy server (192.168.x.x) needs to see the internal ADFS server (172.x.x.x)
(I can't currently join the ADFS Proxy server to the domain)
1 x Front End Web server (192.168.x.x) needs to see the internal CRM server (172.x.x.x)
(I can't currently join the Front End Web server to the domain)

Objective
External end users with AD accounts to enter a CRM URL (crm.domain.co.uk) via browser on tablet
URL points to Front End Web server in the DMZ, then redirects to the ADFS server via the ADFS proxy in the DMZ
ADFS authenticates the user against the internal DC, and then the Front End Web server in the DMZ redirects to the internal CRM SQL boxes rendering CRM to the external users/s.
0
Comment
Question by:CTCRM
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
4 Comments
 
LVL 28

Expert Comment

by:asavener
ID: 40023675
I would suggest putting a read-only domain controller in the DMZ that your proxy server can use.  Then open up the appropriate ports to allow the domain replication to occur.
0
 
LVL 2

Accepted Solution

by:
CTCRM earned 0 total points
ID: 40090864
I have added the NAT rule and Access Rules which has resolved my issue.
0
 
LVL 2

Author Closing Comment

by:CTCRM
ID: 40102439
After adding the correct rules my issue was resolved.
0
 
LVL 1

Expert Comment

by:CyberGar
ID: 40806931
care to share your ACL?  I have the NAT, but not sure where the ACL goes...
0

Featured Post

Free Tool: Site Down Detector

Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Routing between two networks? 10 90
Pfsense - and other email Servers 8 63
What is an ASP Table on a Cisco ASA? 3 52
DNS/WINS in a domain 10 48
The DROP (Spamhaus Don't Route Or Peer List) is a small list of IP address ranges that have been stolen or hijacked from their rightful owners. The DROP list is not a DNS based list.  It is designed to be downloaded as a file, with primary intention…
The Need In an Active Directory enviroment, the PDC emulator provide time synchronization for the domain. This is important since Active Directory uses Kerberos for authentication.  By default, if the time difference between systems is off by more …
Nobody understands Phishing better than an anti-spam company. That’s why we are providing Phishing Awareness Training to our customers. According to a report by Verizon, only 3% of targeted users report malicious emails to management. With compan…
Attackers love to prey on accounts that have privileges. Reducing privileged accounts and protecting privileged accounts therefore is paramount. Users, groups, and service accounts need to be protected to help protect the entire Active Directory …

730 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