I'm rather lost now. How is doing this double NAT going to help you in a 
typical cloud scenario? Usually you do this type of thing with a direct link to 
a business partner/supplier.

Thanks,
Brian Desmond
[email protected]

w - 312.625.1438 | c   - 312.731.3132

From: [email protected] [mailto:[email protected]]
Sent: Thursday, September 22, 2011 3:01 PM
To: NT System Admin Issues
Subject: RE: LDAP\DC with a public IP

Cloud.
They explain further on that they have a lot of clients, some of whom may use 
the same private IP so to prevent "overlap" (in their words) they want our 
private IP natted.  I've done this with GE and Philips because they're so large 
they have over-lapping private IP's, too. However, when they requested it, they 
gave me another private ip.  For example, nat your 192.168.x.x to 192.168.40.1 
or something like that.
Apparently, this company doesn't do that but just uses the public IP as a 
reference.
________________________________
From: [email protected]<mailto:[email protected]>
To: 
[email protected]<mailto:[email protected]>
Date: Thu, 22 Sep 2011 13:22:21 -0500
Subject: RE: LDAP\DC with a public IP
Is the "new product" cloud based or internal? If internal I can't see why you 
would need your DCs/LDAP servers to be available to the public internet. If 
cloud based just open up to the IP of the server in the cloud to allow 
authentication.

And insist on LDAP over SSL.

                al

--
Al Lilianstrom
CD/LSC/SOS/ES
[email protected]<mailto:[email protected]>

From: [email protected]<mailto:[email protected]> 
[mailto:[email protected]]<mailto:[mailto:[email protected]]>
Sent: Thursday, September 22, 2011 12:58 PM
To: NT System Admin Issues
Subject: LDAP\DC with a public IP

We are getting a new product to report variances.  It is web-based but using 
LDAP to authenticate users.  The way it works is that a person can log a 
variance anonymously  but then directors can use their AD credentials to log in 
and report their findings.
My issue is that they want my two LDAP servers (which are my dc's) to have a 
public IP address.  Even with ACL and security, I am very uncomfortable with 
having my DC's be "visible" on the 'net.  From past experience of scanning my 
firewall logs, I know that a lot of times, hackers (or script kiddies) just use 
a range of public IP's to scan for vulnerabilities.
Am I being unduly alarmist in my concern?  Do other organizations attach a 
public IP to their LDAP servers?
Thanks for any opinions you can give me.  I have no problem going back to the 
people involved and saying ' I was wrong.'  OTOH, I also have no problem 
telling them no way, you need to come up with a work around.
~ Finally, powerful endpoint security that ISN'T a resource hog! ~
~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/>  ~

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