question

rmartin0000 avatar image
rmartin0000 asked ·

DNS server updates not happening

Hi,

Our network running with multiple VLAN's obtaining IP's from the Router acting as DHCP server. Problem facing is, sometimes, workstation are unable to ping with the host name though they are on network, checked the DNS server and found multiple DNS records for that workstation available with the different timestamp sometime Forward lookup zone is correct but reverse lookup zone having different IP than the actual. Also checked the DNS Scavenge stale resource records is already selected and Set the No-refresh interval and Refresh interval to be 1 day and that particular IP is not statically assigned but issue seems to be the same kindly advise.

windows-dhcp-dns
1 comment
10 |1000 characters needed characters left characters exceeded

Up to 10 attachments (including images) can be used with a maximum of 3.0 MiB each and 30.0 MiB total.

Hi,

How things are going there on this issue?

Please let me know if you would like further assistance.

Best Regards,
Sunny

0 Votes 0 · ·
DSPatrick avatar image
DSPatrick answered ·

The better option would be to move the DHCP server role to a windows server. As a work-around you might try lengthening the lease time in router setup.

--please don't forget to Accept as answer if the reply is helpful--





Share
10 |1000 characters needed characters left characters exceeded

Up to 10 attachments (including images) can be used with a maximum of 3.0 MiB each and 30.0 MiB total.

SunnyQi-MSFT avatar image
SunnyQi-MSFT answered ·

Hi,

Thanks for posting in Q&A platform.

Based on your description, my understanding is that the issue is workstation are unable to ping with host name although they are on network. Please correct me if my understanding is wrong.

Before we go further, I would like to confirm the following information with you.

  1. If the workstation is able ping successfully with the IP address?

  2. How about the result when run command "nslookup hostname"?


Best Regards,
Sunny


If the Answer is helpful, please click "Accept Answer" and upvote it.

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.


Share
10 |1000 characters needed characters left characters exceeded

Up to 10 attachments (including images) can be used with a maximum of 3.0 MiB each and 30.0 MiB total.

rmartin0000 avatar image
rmartin0000 answered ·

Hi SunnyQi-MSFT


Not all the workstation but random PC's and sometimes ping successful with the IP but not hostname to verify checked the reverse lookup zone and found out reverse lookup zone having different IP resulting only with IP works not with the host. so manually I should delete the reverse lookup zone record and update manually in order to ping via hostname.

2 comments Share
10 |1000 characters needed characters left characters exceeded

Up to 10 attachments (including images) can be used with a maximum of 3.0 MiB each and 30.0 MiB total.

Hi @rmartin0000 ,

Thanks for your update.

Could you please check if the owner of the corresponded PTR records were the DHCP server?

For dynamic update, by default, if the client obtained IP address from DHCP, the client will register its DNS A record, and the DHCP server will register the DNS PTR record of the client.

If you need the DHCP server register PTR record automatically, please grant permission to DHCP server to register in DNS server.


Best Regards,
Sunny


If the Answer is helpful, please click "Accept Answer" and upvote it.

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.


0 Votes 0 · ·

Hi,
 
Just want to confirm the current situations.
 
Please feel free to let us know if you need further assistance.
 
Best Regards,
Sunny

0 Votes 0 · ·
rmartin0000 avatar image
rmartin0000 answered ·

Not all the workstations but random PC's and ping successful with the IP but not with the host during the investigation found out that reverse lookup zone is not updating with the current login resulting unable to ping with the host so manually i should remove the reverse lookup zone record and update manually to get this done. Most of such issues are happening because of reverse lookup zone record not update. Kindly advice what is extra to be done to update the both FWD and Reverse zone to be updated as actual.

Share
10 |1000 characters needed characters left characters exceeded

Up to 10 attachments (including images) can be used with a maximum of 3.0 MiB each and 30.0 MiB total.

DSPatrick avatar image
DSPatrick answered ·

You can try recreating it. In DNS console you can right-click on Reverse Lookup Zones and choose New Zone and follow the prompts


--please don't forget to Accept as answer if the reply is helpful--





Share
10 |1000 characters needed characters left characters exceeded

Up to 10 attachments (including images) can be used with a maximum of 3.0 MiB each and 30.0 MiB total.