Node fqdn - external dns

Yes, it is possible. First you need to set up a DNS. Navigate to "System ›› Configuration : Device : DNS". Then you can create a node using the FQDN instead of IP address.

Yes, it is possible. First you need to set up a DNS. Navigate to "System ›› Configuration : Device : DNS". Then you can create a node using the FQDN instead of IP address.

Do you mean the DNS server configured on the client connecting to the VS must be used for creating a node on the F5 via FQDN? Or do you mean the client you use to configure the F5?

Can you give us more details on what you are trying to accomplisch and why you cannot use the DNS servers configured on the F5?

I cannot use local dns because it isn't resolve public names, it is only for local network.

What I want to achieve is connect to client (client means 3rd party application outside my network) through LTM.

My app shoots to VS which has POOL with my client server NODE (fqdn because they use dynamic ip's, they will also provide me their dns server to resolve their names)

Hi,

Did some testing in my lab and I don't think it's possible what you want.

When configuring a node with FQDN, the F5 appliance uses the configured DNS servers to resolve to an IP-address. Needed to be sure, so used TCPDUMP and seeing the F5 contacting the configured DNS server when creating a node with FQDN.

If you do not want to configure the F5 with external DNS servers and your local DNS servers cannot forward requests to external DNS server, you can't solve this.

Maybe you can use conditional forwarding on your DNS servers so forwarding only takes place for this 3rd party external server.

Regards, Martijn.