Solved

Issue with ISA 2006 Automatic Detection

Posted on 2014-03-17
5
622 Views
Last Modified: 2014-03-23
Hello Experts ,

We have two sites connected with ISA site 2 site VPN with the same active directory

site 1 :
3 domain controllers - ISA server 2006
Site 2 :
2 domain controllers - ISA server 2006

Sometimes firewall client at site1 detect site 2 ISA server and vice verse and when we try to ping wpad it resolve the other site ISA server IP .

If we remove automatically detect proxy setting from internet explorer client successfully connect  to its local ISA server .

we need to know why clients sometimes detect the other site ISA server also how we can deny this ?

Thanks in advance for your support .
0
Comment
Question by:SiliconExpert
  • 3
  • 2
5 Comments
 
LVL 37

Expert Comment

by:Bing CISM / CISSP
ID: 39933800
are the clients of both sites using the same DNS server at one site?
0
 

Author Comment

by:SiliconExpert
ID: 39933823
no they have their own DNS  on 2 domain controllers which replicated with the 3 domin controllers DNS at the other site
0
 

Accepted Solution

by:
SiliconExpert earned 0 total points
ID: 39938974
I have solved this issue but force client to use dhcp to discover wpad file
 navigate to :

HKEY_Current_User\Software\Microsoft\Windows\CurrentVersion\Internet Settings
Then add the following value:
DWORD: AutoProxyDetectType Set the value to 1 to force DHCP only.

Now we need to reload wpad  for Internet Explorer to detect changes by remove “automatically detect setting” and “use automatic configuration script” from connection tab at Internet options then close Internet Explorer and open it again then enable them again .

Also at cmd  type ipconfig/flushdns to clear DNS cache
0
 

Author Closing Comment

by:SiliconExpert
ID: 39948422
I have solved my issue by this way
0
 
LVL 37

Expert Comment

by:Bing CISM / CISSP
ID: 39948490
sorry for replying late and good to know the problem was solved.
0

Featured Post

How your wiki can always stay up-to-date

Quip doubles as a “living” wiki and a project management tool that evolves with your organization. As you finish projects in Quip, the work remains, easily accessible to all team members, new and old.
- Increase transparency
- Onboard new hires faster
- Access from mobile/offline

Join & Write a Comment

I have been asked to explain on many, many occasions the correct way to setup network cards and DNS settings on ISA Server 2004, 2006 and forefront Threat management gateway (FTMG) and have willing done so. I have also promised my self everytime tha…
Microsoft's ISA Server has been its pre-eminent security product for about a decade and is still regarded amongst the well-informed as one of the best software firewalls and application gateways ever released, by any manufacturer. ISA Server has bee…
Google currently has a new report that is in beta and coming soon to Webmaster Tool accounts. This Micro Tutorial will highlight new features for Google Webmaster Tools.
Shows how to create a shortcut to site-search Experts Exchange using Google in the Chrome browser. This eliminates the need to type out site:experts-exchange.com whenever you want to search the site. Launch the Search Engine Menu: In chrome, via you…

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

17 Experts available now in Live!

Get 1:1 Help Now