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ashk's avatar
ashk
Icon for Cirrus rankCirrus
Dec 06, 2023

DNS load balancing for External Websites

Hello, We currently manage an F5 DNS with a delegation for *.gslb.abc.com. Our external websites, namely ffff.org and gggg.com, are hosted on F5 LTM, and their respective IPs are provided in the Go...
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zamroni777's avatar
zamroni777
Icon for Nacreous rankNacreous
Dec 06, 2023

actually that's common use case for f5 dns/gtm.

a. ask godaddy to set f5 dns public IP as NS for ffff/ggg.com, OR
b. add A records for f5 dns hostname in godaddy. then replace A record of ffff/ggg.com with CNAME/alias to that f5 gtm hostname.

ip address you put in godaddy surely must be public ip.
this public ip can be put in upfront network firewall that will NAT it to f5 private ip addresses.

  • ashk's avatar
    ashk
    Icon for Cirrus rankCirrus
    Dec 06, 2023

    Okay, seems like a way, 

    I will add NS record for a .org website of F5 GTM DNS listener. and allow firewall for that IP to listen externally on port 53. Then it will technically hit F5 GTM for name resolution and provide the IP based on the wide pool right? 

    What would be the host I need to configured on the F5 GTM wide IP name? is that ggg.gslb.org or pretty ggg.org will be enough.