Forum Discussion
AltostratusListener on BigIP DNS
Did anybody happen to know how a DNS query gets directed to the BigIP DNS Listener?
Thanks.
- Lidev
Nacreous
Hi Alex,
Here's an overview of DNS query processing on BIG-IP systems : https://support.f5.com/csp/article/K14510
Regards
newbieThanks for the response. Unfortunately, I didn't find the info I am looking for in this article. I am trying to figure out how a DNS query that a user sends ends up on a BigIP DNS.
So, we have 2 BigIP DNSes and we're using Wide IPs for looking up a query once it gets there. But what's the path for that query getting to one of the BigIP DNS?
Thanks.
- Lidev
Client Local DNS (LDNS) -> DNS Root -> DNS TLD (.com) -> BIG-IP DNS servers (yourdomain.com)
Then, selection between the two BIG-IP DNS depend on the loadbalancing algorithm defined at GSLB level.
More details here :
- https://devcentral.f5.com/s/articles/lets-talk-dns-on-devcentral#.UxdcebHnbIV
- https://f5.com/fr/education/training/free-courses/getting-started-with-big-ip-global-traffic-manager-gtm
