Solved

Internal DNS

Posted on 2012-03-26
6
511 Views
Last Modified: 2012-05-03
I am in the process of point to a exteral mail server. I was hosting my own exchange system in house but I am in the process of switching over to an external mail client. My DNS would point to the internal mail exchange mail.hchd.us but the new external mail client uses the same name mail.hchd.us. When I ping internally it will ping back the internal ip address which is not what I want. How to I clearn out the old mail exchange to point to the external mail client.
0
Comment
Question by:dude02
6 Comments
 
LVL 59

Expert Comment

by:Darius Ghassem
ID: 37766858
Did you update your internal MX record to point to the external IP address? Go into DNS to update this record
0
 
LVL 2

Expert Comment

by:CHENGH
ID: 37766868
If you don't need internal dns record mail.hchd.us, you can change it to the new public IP address of public mail.hchd.us

If you have to keep the internal DNS mail.hchd.us, I suggest you use the public IP address instead of mail.hchd.us when you configure the new external mail client.

The other way to do this is to use host file in your computer running external mail client.  I recommend you read http://en.wikipedia.org/wiki/Hosts_%28file%29
to find the host file and add a entry define the public IP address for mail.hchd.us.
0
 
LVL 1

Expert Comment

by:mcannet
ID: 37766879
As dariusg and CHENGH stated, just deleted the record from your internal DNS server, my other two cents, flush your DNS cache from your DNS server and clients as well.
0
Optimizing Cloud Backup for Low Bandwidth

With cloud storage prices going down a growing number of SMBs start to use it for backup storage. Unfortunately, business data volume rarely fits the average Internet speed. This article provides an overview of main Internet speed challenges and reveals backup best practices.

 
LVL 4

Author Comment

by:dude02
ID: 37767379
I did delete mail.hchd.us from the DNS which did work for several computers but other computers on the same network get this message when I try to ping the outside mail server: C:\Users\admin>ping mail.hchd.us
Ping request could not find host mail.hchd.us. Please check the name and try again.  

I am not sure why some computers have no problem pinging mail.hchd.us and others I am getting the above message. What should I do to correct this message? I did restart those computers with no luck. I can ping other sites with no problem but those computers seem to be looking for that old mail client.
0
 
LVL 2

Accepted Solution

by:
CHENGH earned 250 total points
ID: 37767438
How many DNS servers do you have? Are all clients computers using the same DNS server?

You deleted mail.hchd.us from the DNS server, but you may need add a record of mail.hchd.us and set it with the public ip address 64.90.209.14

You can run the command nslookup in Command Prompt from the client computer, it will tell you which dns server you are using. Then type mail.hchd.us see what the ip is.
0
 
LVL 59

Assisted Solution

by:Darius Ghassem
Darius Ghassem earned 250 total points
ID: 37767505
Also, could be sitting in DNS cache. Try doing ipconfig /flushdns and on DNS servers flush the DNS cache
0

Featured Post

Free learning courses: Active Directory Deep Dive

Get a firm grasp on your IT environment when you learn Active Directory best practices with Veeam! Watch all, or choose any amount, of this three-part webinar series to improve your skills. From the basics to virtualization and backup, we got you covered.

Question has a verified solution.

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

Lotus Notes – formerly IBM Notes – is an email client application, while IBM Domino (earlier Lotus Domino) is an email server. The client possesses a set of features that are even more advanced as compared to that of Outlook. Likewise, IBM Domino is…
A safe way to clean winsxs folder from your windows server 2008 R2 editions
This tutorial will walk an individual through the steps necessary to enable the VMware\Hyper-V licensed feature of Backup Exec 2012. In addition, how to add a VMware server and configure a backup job. The first step is to acquire the necessary licen…
This video discusses moving either the default database or any database to a new volume.

856 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