DNS unreachable on branch fortigates after accidental DNS server removal

Forum|Forum|1 year ago
January 23, 2025
4 replies
1322 views

Our set up was working before.

main branch - 2 DNS servers - Main Fortigate

then over the internet to our other branch Fortigates

with the accidental removal of the DNS server, then restoring from back up the server is back and connected back in our network. No settings were changed on the branch Fortigates and everything looks good on the main Fortigate. unfortunately the branch Fortigates all say our specific DNS servers are unreachable.

Can someone point me in the right direction?

dingjerry_FTNT

Staff

Hi @BsuarezQTStools ,

"the branch Fortigates all say our specific DNS servers are unreachable"

Are the DNS queries from the branch FGT itself or branch users?

BsuarezQTStoolsAuthor

New Member

believe the branch FGT.

dingjerry_FTNT

Staff

Hi @BsuarezQTStools ,

Are the DNS queries sent to DNS servers over the Internet to the Main FGT?

Where are the DNS servers? The Main FGT acts as DNS servers or the DNS servers are on the Main Branch network?

You have to provide all the info.

BsuarezQTStoolsAuthor

New Member

sorry, thank you for your assistance. I contacted my predecessor and he explained and walked me through the process of what is going on. I am good now.