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ashk's avatar
ashk
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Dec 21, 2023

F5 DNS for External websites

Greetings everyone, I require assistance with F5 DNS resolution for external websites. I have a website hosted on GoDaddy, for example, mapmap.org. Currently, it points to a single A record, and I ...
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zamroni777's avatar
zamroni777
Icon for Nacreous rankNacreous

it's better if you share the dns records in godady and f5 config.

usually, f5 dns implementaiton using dns record is like this:

 

 

Origin::
a. In godaddy:
host1.mycompany.com	IN A 1.2.3.4
host2.mycompany.com	IN A 11.12.13.14
host3.mycompany.com	IN A 21.22.23.24


New using F5 DNS::
a. In godaddy: declare new subdomain to be NS-ed by F5 DNS and create alias record for previous A records
f5dc1.mycompany.com IN A 5.6.7.8		 /// Datacenter1 F5 DNS listener address
f5dc2.mycompany.com IN A 15.16.17.18		 /// Datacenter2 F5 DNS address
f5dns.mycompany.com	IN NS f5dc1.mycompany.com
f5dns.mycompany.com	IN NS f5dc2.mycompany.com
host1.mycompany.com	IN CNAME host1.f5dns.mycompany.com
host2.mycompany.com	IN CNAME host2.f5dns.mycompany.com
host3.mycompany.com	IN CNAME host3.f5dns.mycompany.com

b. In F5 DNS:
create wideip configs for host1.f5dns.mycompany.com, host2.f5dns.mycompany.com, host3.f5dns.mycompany.com which basically serves:
host1.f5dns.mycompany.com	IN A ....	//IP address is decided dynamically by F5 DNS
host2.f5dns.mycompany.com	IN A ....	//IP address is decided dynamically by F5 DNS
host3.f5dns.mycompany.com	IN A ....	//IP address is decided dynamically by F5 DNS

 

 

 

 

 

ashk's avatar
ashk
Icon for Cirrus rankCirrus
Dec 21, 2023

I agree with the config you said, but it is good for *.mycompany.com. its a subdomain and TLD. I have only top level domain .org like example www.mapmap.org where there is no company name or subdomain. Wanted to see how to achive in this scenario. 

  • zamroni777's avatar
    zamroni777
    Icon for Nacreous rankNacreous
    Dec 21, 2023

    so basically originaly you have these records in godaddy:
    mapmap.org IN NS ...godady name servers...
    mapmap.org IN A ....you webserver public ip adress...

    So in godaddy, you still need to delete "mapmap.org IN A ..." and create subdomain and alias such as:
    f5dns.mapmap.org IN NS ... f5dc1 and f5dc2...
    mapmap.org IN CNAME host1.f5dns.mapmap.org