Solved

DNS analysis

Posted on 2016-08-16
2
37 Views
Last Modified: 2016-08-16
I need to change the Name Servers for my public domain.
Is there a tool I can use to see ALL of the information that the current names servers have about my domain so I can copy them to the new name servers?

I do not have back end access to the old name servers

I do not know what all the spf, mx, A, Cname are etc.
I know I can manually look each individual one up on something like mxtoolbox but I want a report on ALL the settings in one shot.  I do not want to have to go searching for each record.
Thanks
0
Comment
Question by:ie0
[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
2 Comments
 
LVL 28

Accepted Solution

by:
Jan Springer earned 500 total points
ID: 41758035
If you do not host your own DNS and cannot log into a portal to make changes, you need to ask your hosting provider for all of that information.

Unless your network was managed by your DNS hosting provider at one time, I would expect that someone within your organization asked for specific records to be configured.

Yes, you can manually look some of them up. But, the ones that you miss may be important.
0
 

Expert Comment

by:TechDept
ID: 41758674
Start by doing a WHOIS. You can use GOOGLE

whois mydomain.com

If not hidden, this query will give you information about the owner, administrator, and technical contacts for your domain.

Since it is very unlikely that any DNS server will be configured to allow dumps (zone transfers) of the entire DNS zone database to any but authorized destinations, you can use NSLOOKUP or DIG to gather the information of the most common DNS records. But there's no way to know what, if any, DNS records you might be missing.

NOTE: If you are issuing these commands from within an Active Directory Domain that has the same name as the Internet Domain you are querying (i.e. Split-Brain DNS), then tack on a known external DNS server to each of the queries so that it will resolve the query for you instead of relying on your own DNS servers to do them. I would use Google's DNS server (8.8.8.8) as in the example below.

nslookup -q=soa mydomain.com.
nslookup -q=soa mydomain.com. 8.8.8.8

Start of Authorities.: Contains the email address of the responsible entity controlling your domain's DNS records. You can email this address and maybe arrange for a copy of the zone database.

nslookup -q=ns mydomain.com.

Name Servers: List of the authoritative DNS Name Servers.

nslookup -q=mx mydomain.com.

Mail eXchanger: List of the Servers, and their priority, that accept incoming emails for your domain.

nslookup -q=spf mydomain.com.
nslookup -q=txt mydomain.com.

Sender Policy Framework: Optional DNS records specifying trusted email sources for your domain and how to handle email from other sources.

nslookup -q=a www.mydomain.com.
nslookup -q=a mydomain.com.
nslookup -q=a *.mydomain.com.

1) Most common host record. Typically used as a web site pointer.
2) Optional "Default" IP when no host name is given. Typically points to the default web server.
3) Optional "Catch All" IP when an invalid host name (type-o) is given. Typically points to the default web server.

One last thing. From the WHOIS information, you will know where the domain is registered, such as Network Solutions, Go Daddy, 1&1, etc. You can contact them to take back control of your domain. You'll have to prove your identity, such as faxing your request on company letterhead from one of the company's known fax phone numbers.

Most likely, the DNS is hosted by the same entity where it is registered. If so, you'll have instant access to your DNS records. If not, you can transfer the DNS to a DNS hosting company of your own choosing and start building the zone database from the information you obtained above.

HTH
0

Featured Post

Industry Leaders: 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

Suggested Solutions

Most DNS problems are VERY easily troubleshot and identifiable if you can follow the steps a DNS query takes. I would like to share the step-by-step a DNS query takes from the origin to the destination. _____________________________________________…
I've written instructions for one router type, but this principle may be useful for others of the same brand and even other brands of router. Problem: I had an issue especially with mobile devices that refused to use DNS information supplied via…
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…
Finding and deleting duplicate (picture) files can be a time consuming task. My wife and I, our three kids and their families all share one dilemma: Managing our pictures. Between desktops, laptops, phones, tablets, and cameras; over the last decade…

733 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