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ashk's avatar
ashk
Icon for Cirrus rankCirrus
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 aim to implement load balancing between the IPs. To achieve this, I configured a wideip named mapmap.xxx.org and created aliases for mapmap.org and www.mapmap.org. also, pointed Godaddy DNS to my F5 DNS listener IP /NS by removing A record in Godaddy dns. 

Subsequently, Zonerunner was set up with SOA and NS, using the F5 Listener IP. Upon performing an nslookup, I successfully obtained the answers. However, I noticed a .org. zone created as self, with these alias records falling under that zone.

Is it acceptable to have a zone with .org and include these alias records, or is there an alternative approach for this configuration? I appreciate any assistance provided.

4 Replies

  • 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

      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

        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

  • Today, I tried this and getting empty response for mapmap.org and its working for anything.mapmap.org.

     

    Toplevel domain is not working. :( returning and empty response.