Solved

Unable to connect to hosted FQDN with public IP from LAN

Posted on 2009-05-03
3
882 Views
Last Modified: 2013-11-16
I have recently setup an inhouse e-mail server (Kerio) on XP Pro SP3. Network is a P2P with a Watchguard Firebox SOHO6 and Qwest DSL M1000 in bridged mode with static IP. Mx is configured correctly and appears to working fine. DNS addresses are Qwest ISP for primary and secondary.

Prolem is that I can access network from outside using FQDN and IP but not from inside.

However I can't connect using public IP with ping, tracert, HTTP or IMAP on the inside.
Can connect using internal private IP.
Have disabled firewalls and used host file to no effect.

This is necessary inorder to allow laptop to connect to the e-mail server while off the internal network with changing host files or Ip settings.

I'd prefer to not setup an internal DNS server (BIND, etc.), thoughts?
0
Comment
Question by:mountainandtown
  • 2
3 Comments
 
LVL 7

Accepted Solution

by:
blue-screen earned 500 total points
ID: 24291270
You either need to set up an internal DNS or the Watchguard need to be configured to alter the incoming DNS replies.  Cisco IOS and ASA can both do this, but I don't know about the Watchguard.  Other than that, you'd need an internal DNS server.

Try setting the DNS server to point to the Watchguard.  If it runs a proxy DNS service, it might be smart enough to manipulate replies destined to addresses that it handles, even if it won't manipulate transit DNS packets.

.



0
 

Author Closing Comment

by:mountainandtown
ID: 31577356
Thanks, looks like I do need to setup a DNS server on the XP box. Any suggestions on a basic DNS server?
0
 
LVL 7

Expert Comment

by:blue-screen
ID: 24297762
I have never set up a DNS server on an XP box, but Google seems to show a number of choices.

If you can get a DNS translating firewall, that would be an easier choice.  I think you can even do that with DD-WRT on a number of home router platforms like the Linksys WRT54G.
0

Featured Post

Live: Real-Time Solutions, Start Here

Receive instant 1:1 support from technology experts, using our real-time conversation and whiteboard interface. Your first 5 minutes are always free.

Question has a verified solution.

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

Article by: rfc1180
The Maximum Segment size (MSS) is an important consideration when troubleshooting connectivity via the Internet/Intranet. As the packets are routed via the Internet/Intranet, the packets must traverse through multiple routers in the path between two…
I will assume you are running a non-server version of some sort of Windows throughout this article. There are many flavors of Windows since Windows Server 2000 - 2008, XP Home & Pro, Vista Home & Pro, and Windows 7 Starter, Home, Pro, Ultimate, etc.…
Email security requires an ever evolving service that stays up to date with counter-evolving threats. The Email Laundry perform Research and Development to ensure their email security service evolves faster than cyber criminals. We apply our Threat…
Although Jacob Bernoulli (1654-1705) has been credited as the creator of "Binomial Distribution Table", Gottfried Leibniz (1646-1716) did his dissertation on the subject in 1666; Leibniz you may recall is the co-inventor of "Calculus" and beat Isaac…

776 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