Re:What happens when you update your DNS
by LogicX on Monday June 22, 2020 @07:04PM
(#23607960)
I respect and agree with your rant. CTO and Co-Founder of DNSFilter here.
When we get a complaint that our recursive servers are returning an 'old IP' as if we did something wrong... I start by explaining that they likely didn't properly lower their TTL prior to making a change.
Sadly we'll never win this battle; so at some point in the future we'll need to join the likes of google in providing a page to force cache expiration of domains at customers request :/
Re:What happens when you update your DNS
by raegis on Monday June 22, 2020 @08:44PM
(#23608772)
Oh! I always thought the TTL was the delay in "propagating" the DNS change, not an expiration time for lookups. Learn something new everyday... Good thing that's not my day job.
When we get a complaint that our recursive servers are returning an 'old IP' as if we did something wrong... I start by explaining that they likely didn't properly lower their TTL prior to making a change.
Sadly we'll never win this battle; so at some point in the future we'll need to join the likes of google in providing a page to force cache expiration of domains at customers request :/
https://developers.google.com/speed/public-dns/cache