Is there a way to see what external DNS records used to be?

We are trying to resolve an issue with external DNS resolution, and it appears that unauthorized changes may have been made to the DNS records. Is there a way that we can see what the DNS records used to be 24 - 48 hours ago? Thanks!
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Jonathan GeorgeAsked:
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Jeremy WeisingerSenior Network Consultant / EngineerCommented:
You'd have to have logging turned on on the DNS server and review those. Other than that there's nothing that I know of. Can you restore a backup?
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Jonathan GeorgeAuthor Commented:
@Jeremy: We have management of the internal DNS server, however, just to reiterate, this is in regards to external DNS. We do not have management of the external Name Servers. So, similar to how Google has cached copies of web pages, I'm wondering if there are cached copies of external DNS records.
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footechCommented:
There are not.
If this was a domain you owned but have DNS services provided by a third-party, depending on your provider they may show you a change log.  For example, UltraDNS will show a log of when a user logged on (and which one), and when a record was added, deleted, or modified.  Of course, this is assuming you are authorized to log on to view the records.
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Jonathan GeorgeAuthor Commented:
Good to know! I'll check to see if the particular DNS host for this domain can provide change logs. Thank you!
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