Solved

Name Resolution

Posted on 2004-10-19
3
207 Views
Last Modified: 2010-04-10
Hi Everyone, this should be an easy question - perhaps I'm a bit slow today! I have a client with a LAN behind a NAT firewall, so thay have 1 Public IP address. They are using CA's Arcserve Backup for laptops and desktops which connects to a service on one of their internal servers. It connectes via Ip, a specific port, using the server name. This is no problem and I have an entry in the workstations hosts file so it can find the server. The problem is that all these machines are notebooks, and are often outside of the LAN, on the internet. When on the internet they cannot (of course) find the server as it is on a private IP address, behind the firewall. Is there an entry I can use in the workstations hosts file that will try one IP first, then another if that is not successful? Or a better way?

Thanks
Matt
0
Comment
Question by:mattpaulin
[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
3 Comments
 
LVL 79

Accepted Solution

by:
lrmoore earned 125 total points
ID: 12352212
A better way would be to use a local DNS server while on the local lan, and a public DNS server while away.
I know that's a short answer, but this is what dns is all about...
0
 
LVL 9

Expert Comment

by:TannerMan
ID: 12356880
I am not sure I understand your question. If you have the internal server entered correctly, along with netbios name, in your hosts file then anytime the machine attempts to resolve that server it will find it. If the laptop is on the internet, it will NOT find it, nor should it, as you stated. I am not sure I see the issue. It finds when it should and doesn't find it when it shouldn't.

0
 
LVL 4

Expert Comment

by:tmenasco
ID: 12359860
Try using a dynamic DNS service (http://www.dyndns.org/) to register a domain name and point it to your firewalls outside address. Then have the firewall redirect the requests for the specific port to the server in question. Then your machines could use the URL ro access the server from anywhere.
0

Featured Post

Visualize your virtual and backup environments

Create well-organized and polished visualizations of your virtual and backup environments when planning VMware vSphere, Microsoft Hyper-V or Veeam deployments. It helps you to gain better visibility and valuable business insights.

Question has a verified solution.

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

Suggested Solutions

Meet the world's only “Transparent Cloud™” from Superb Internet Corporation. Now, you can experience firsthand a cloud platform that consistently outperforms Amazon Web Services (AWS), IBM’s Softlayer, and Microsoft’s Azure when it comes to CPU and …
If you're not part of the solution, you're part of the problem.   Tips on how to secure IoT devices, even the dumbest ones, so they can't be used as part of a DDoS botnet.  Use PRTG Network Monitor as one of the building blocks, to detect unusual…
Internet Business Fax to Email Made Easy - With  eFax Corporate (http://www.enterprise.efax.com), you'll receive a dedicated online fax number, which is used the same way as a typical analog fax number. You'll receive secure faxes in your email, f…
This video gives you a great overview about bandwidth monitoring with SNMP and WMI with our network monitoring solution PRTG Network Monitor (https://www.paessler.com/prtg). If you're looking for how to monitor bandwidth using netflow or packet s…

752 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