Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

ASA 5510 acting as a DNS proxy

Posted on 2009-04-01
3
Medium Priority
?
2,147 Views
Last Modified: 2012-06-21
We used to havea firewall that acted as a DNS proxy. We replaced it with a Cisco ASA 5510 that does not have this set up. Now, our webserver is having issues sending meail from teh DMZ because it has no DNS server to use.

Is there a way to set up a DNS proxy on the ASA 5510?
0
Comment
Question by:amydnaz
  • 2
3 Comments
 
LVL 20

Expert Comment

by:Alan
ID: 24046323
Hi,

This may be missing the point, but why not point the webserver at a DNS server?

You could give it OpenDNS (for example):

208.67.222.222
208.67.220.220

Hope that helps,

Alan.
0
 

Author Comment

by:amydnaz
ID: 24052094
That didn't work. I'm stumped as to why we can't seem to get the webserver to recognize DNS.
0
 
LVL 20

Accepted Solution

by:
Alan earned 1500 total points
ID: 24054418
Hi,

I am working on the assumption at this point that the DNS settings in the Webserver are pointing at OpenDNS.

Is the webserver connecting to anything outside at all?

What if you attempt a direct connection to, say, www.cnn.com at:

157.166.224.25

Can you connect from a web browser (if there is one on the webserver), or via telnet:

telnet 157.166.224.25 80

If so, what do you get using, say something like, NSLOOKUP on the webserver?  What is showing as the default resolver, and what is its IP address?

Thanks,

Alan.
0

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

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

Network traffic routing plays key role in your network, if you have single site with heavy browsing or multiple sites, replicating important application data from your Primary Default Gateway ,you have to route your other network traffic from your p…
I found an issue or “bug” in the SonicOS platform (the firmware controlling SonicWALL security appliances) that has to do with renaming Default Service Objects, which then causes a portion of the system to become uncontrollable and unstable. BACK…
Integration Management Part 2
When cloud platforms entered the scene, users and companies jumped on board to take advantage of the many benefits, like the ability to work and connect with company information from various locations. What many didn't foresee was the increased risk…

926 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