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DNS Issues

By rhfoit ·
We are on the tale end of an AD migration. We have 2 seperate domains with a 2 way trust setup between them. The users have been migrated and we are in the process of moving DHCP and DNS over as well. This morning it was hit ot miss on whether or not they could access the file server via UNC path using the CNAME record after getting a DHCP address from the new domain DHCP scope. The old domain still has a secondary DNS zone with the entries in it. We even made sure the DNS suffix was set properly in the NIC properties. Trying to figure out why this is happening.

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Do client workstations ever get shut down?

by seanferd In reply to DNS Issues

If not, you may need to flush the local resolver cache on each of them, if the DNS Client service is running.

If browsers are used on the internal network, flush the browser caches as well.

If there are routers between clients and servers, they may need a reboot as well.

Try a traceroute and dig or nslookup from the clients to see where the lookups are going to make sure the lookups are going directly to the new server.

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