Split-brain DNS question...

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hi,

our dns zone (mycompany.co.uk) hosted externally dyndns , has around 20 records.

our internal domain mycompany.local, setup split-brain dns , created new zone mycompany.co.uk. ensure application use , internal ip address when laptops inside lan point public ip address when outside corporate network.

that works fine. notice other 19 records have in our external dns not work when inside lan - example our website www.mycompany.co.uk. 

is there way forward dns queries "anything else" not exist in our new internal zone? or need manually re-create 19 records.

many thanks



hi,

according description, understanding records on external dns server can’t resolved when device inside lan after configuring split-brain dns.

if dns records registered in external zone, internal devices not able resolve name. because internal dns servers not have these records in zone. internal dns servers not attempt resolve host name using root hints/ forwarders/any other dns servers. because internal dns servers host authoritative zone. 

manually create these records on internal dns servers in corresponding zone. once ip address of record changed, remember update it.

best regards,
eve wang

please remember mark replies answers if , unmark them if provide no help. if have feedback technet support, contact tnmff@microsoft.com.



Windows Server  >  IPAM, DHCP, DNS



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