A non-network guy trying to understand internal DNS

We recently put in a new file server at my company.  One of the things we learned a few days later was that we could not longer scan to a network folder from our Xerox copier/scanner.  This copier scanner resides on an ip range that is being phased out and I am sure that was at least part of why this occurred.

I understood that we needed to go into settings on the MFD portal and change the location of the network folder that the device was scanning to.  To keep it easy I will say we went in and changed the server & path from oldserver\scans to newserver\scans and figured that would take care of it.  Not so.  We went down the road of checking permissions on the the new server folder and found everything to be correct.  What we finally figured out was that we had to change newserver\scans to the IP address of the new server in order to get it to work.  So as soon as we entered 111.222.333.444\scans on the device settings, the scans would from the device would start working again.

I understand that this has something to do with DNS, but would like to know more and specifically, what would need to be changed on our DNS server to correct the issue?  WHen I access the DNS area of the server I see forward zones, reverse zones, etc.

Can someone direct me on what type of entry needs to be created so that when we put newserver\scans in the device settings, it will still work?

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yo_beeDirector of Information TechnologyCommented:
1: I would make sure that your MFP has the correct DNS settings entered.
This setting needs to point to the correct IP address of your DNS Server.

2:The Forward Zone should have a record in there for the New Server.  If not you will need to manually add the A Record of the New Server with the IP 111.222.333.444.

I would look and make sure that the correct DNS Servers are enters in the MFP.  If they are then move into the Forward Zone and see if the record exist there.  If you have two servers and one server does have the record and the other does not you will need to confirm that there are no DNS replication issues.  

Andrej PirmanCommented:
Most probably your Xerox MFD is using PUBLIC DNS, so local names could not be resolved.

The other problem might be that COMPUTER BROWSER service on new server is not running, so it's not becoming the new LAN browser on network. Old server probably does not recognize new server's name via any of resolving methods, os it's not known to networking devices.

To do it properly, you would need to have INTERNAL/LAN DNS server, for example your NEWSERVER to serve this role.
Under DNS properties on this server you could configure FORWARDERS, which are EXTERNAL/PUBLIC DNS servers (for example, Google's or your internet provider's DNS servers).

So, untile here, DNS resolving would go:
1st, if we're talking about browsing the web sites, browser's internal DNS cache is contacted first
2nd, computer will look internal cached DNS entries (on Windows machine, internal cache can be cleared by issusing ipconfig /flushdns command)
3rd, if internal cache doesn't know, then file c:\windows\system32\drivers\etc\hosts will be lookup for possible entries
4th, if there's no clue of IP address untill here, the DNS servers from TCP/IP properties will get contacted

That above is a ROUGH estimate of how DNS resolving name --> to IP address works on common PC.

So, if we get back to our DNS server role, your NEWSERVER as DNS should be put in DHCP options to be used as PRIMARY DNS for your LAN computers (and for Xerox MFD).

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It is also possible that you need to enter the fully-qualified name of the server.

Friendly name:  server1
fully-qualified name:  server1.domain.local (if your internal domain name is domain.local)
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snyperjAuthor Commented:
Still have not resolved this issue.  The device itself is pointed to our correct internal dns server.  An A record exists for the server name, however, the scan path will not work unless the IP is used for servername in the scan settings on the device.  We were able to use the host name (unqualified) of the previous server.  I will try the FQDN as suggested by asavener later today...
Just a thought. Is there a way to test network settings on the copiers/scanners? Connect to thier web interface. From them ping newserver by name? Also are you using external DNS with internal statically? I never use external DNS for any reason.
The only thing to change is the file server? They are different names? Different IP addresses? You mention IP range. Is it possible to rewire/move the scanner to the same IP network? Im thinking router? lan issue?
Andrej PirmanCommented:
Does the device itself have some setting like "Enable Local Computer Browser Service"? On QNAP I solved the similar problem by enabling it.
snyperjAuthor Commented:
Problem solved itself, not sure how!@
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