Technical Tip: How to Change DNS on FortiEDR Manager, Aggregator and Core - On-Prem

This article describes how to point the manager, aggregator, and core to a different DNS server.

1)  Open up an SSH system to the VM wanted, to change (Manager, Aggregator or Core).

2)  Log on using root credentials.

3)  Enter: cd /etc/sysconfig/network-scripts.

4)  Enter: ls (This will display a list of files in the current directory).

5)  Look for the relevant network adapter (mine is ifcfg-ens33).

6)  Enter: vi ifcfg-ensXX (e.g vi ifcfg-ens33).

7)  Enter: ‘i’ to go into insert mode.

8)  Use the arrow keys to scroll down to DNS1.

9)  Change DNS1 to DNS1=x.x.x.x (replace the x.x.x.x to the DNS IP Address).

10) Press 'esc' then type ':wq' to save and exit the file.

11) Restart the VM.