Multiple SOA A records

Windows 2003 r2 DNS

I have multiple SOA A records listed on internal DNS servers.  These records point to other non NS server IPs on the LAN, but am not sure why they are even registered as SOA A records.

Why would I have these extra SOA A records?
ARob720Asked:
Who is Participating?
 
3nerdsConnect With a Mentor Commented:
So I think you just answered the question.

The first 5 were created when you added those server to the NS tab the other 2 were added for AD replication. If all records point to active DNS or AD boxes they are necessary.

Regards,

3nerds
0
 
3nerdsCommented:
Can you give me an example.

The only thing that I could think that may require that would be if you have multiple sub-domains and want separate SOA for each sub domain. for example

Taken from: http://whatexit.org/tal/mywritings/dnssoa.html

fast.com.   IN SOA      ns1.fast.com. dude.fast.com. (
                        883081600 ;serial (version)
                        3600      ;refresh period
                        600       ;retry refresh this often
                        2592000   ;expiration period
                        1800      ;minimum TTL
                        )

2.fast.com.   IN SOA      ns1.2.fast.com. dude.fast.com. (
                        883081600 ;serial (version)
                        3600      ;refresh period
                        600       ;retry refresh this often
                        2592000   ;expiration period
                        1800      ;minimum TTL
                        )


Regards,

3nerds
0
 
ARob720Author Commented:
I am calling it an SAO because they lists the name as (Same as Parent Folder) but in actually they are A records.  Is there a purpose to have multiple (Sam as Parent Folder) A records for multiple servers across the domain?  There are also (Same as Parent..) NS records but I can understand why those would exist.
0
Will You Be GDPR Compliant by 5/28/2018?

GDPR? That's a regulation for the European Union. But, if you collect data from customers or employees within the EU, then you need to know about GDPR and make sure your organization is compliant by May 2018. Check out our preparation checklist to make sure you're on track today!

 
3nerdsCommented:
Right Click on the name of you forward lookup zone and select properties
Click the Name server tab
Do the servers listed there match the extra A records listed?
0
 
ARob720Author Commented:
5 NS that are listed in the NS tab.  All have a corresponding (same as parent...)  NS and A records.  Then I have 2 other (same as parent...) A records that correspond to non NS servers around the domain.  

After further investigation the remaining 2 IPs are for replicating AD machines that are not running DNS.
0
 
3nerdsCommented:
If you no longer use those IP addresses as Name servers then you can remove them from the name server tab which I believe asks you or removes the A records automatically. Been a bit to remember exactly.

Hit submit a bit to quick =)
0
 
ARob720Author Commented:
No, I it looks like everything adds up, NS servers with NS and A records and AD (only) servers with only A Records.

Thanks for getting me there.
0
All Courses

From novice to tech pro — start learning today.