FortiManager: login GUI

[Akbar22]

Hello,

I installed the #Fortimanager and tried to log in to the GUI using FortiCloud and Fortimanager credentials both give the error message "Couldn't resolve hostname", I am not able to get to the web GUI

Anyone could help here, please?

|Thank you 

[Jean-Philippe_P]

Hello Akbar22,

Thank you for your post on the Fortinet Community website!

I found this documentation for you, can you tell me if it resolved your problem please ?

https://help.fortinet.com/fmgr/vm-install/56/Document/800_Initial_Configuration/801_GUI_Access.htm

Kindest Regards,

[Akbar22]

Thank you Jean,

Before posting on the community I have already gone through the documents you recommended, unfortunately it did not work and it is still not working.

[heng]

Hi there, 

Try, 

1) Login via CLI SSH and try ping to any of the FQDN and make sure it able to resolve. 

exe ping www.fortinet.com 

2) If not able to resolve, check configured DNS setting, if the system DNS is correct, then check step (3).

show system dns

3) Make sure the outgoing DNS port is allow by your upstream device, if there is DNS response, you should see the response accordingly. 

diag sniffer packet any 'port 53' 4 0

4) Also, make sure your upstream device allow outgoing port TCP/443.

[Abdullah98]

I know this post is old, but I faced the same issue today and found the solution, so I’m sharing it here in case it helps someone else.

My FortiManager VM could ping public IPs (like 8.8.8.8) without any problem, but it failed when trying to ping domain names such as www.google.com.

The cause turned out to be very simple: DNS was not configured on FortiManager.
Once I manually set DNS servers, everything worked immediately.

Fix

Run the following in the FortiManager CLI:
config system dns
set primary 8.8.8.8
set secondary 1.1.1.1
end