Am 16.04.21 um 12:27 schrieb Carlos E. R.:
On 16/04/2021 11.58, Michael Pujos wrote:
I've see something like this happening randomly in Firefox: occasionally, loading a page fails and works on a retry. Could be a Firefox specific issue though as I've not seen it anywhere else.
I have seen firefox fail on sites that work with system ping. Firefox uses its own resolver, not the system configured one, and in some (reproducible) circumstances it fails.
I also notice more DNS issues currently with TW compared to 15.2 before. I thought so far it might be my setup which is a bit special: - system resolver -> PDNS recursor local -> pihole (local network) -> ISP resolver but now reading this thread I'm not sure sure it (completely) is. In any case about the Firefox comment: This is not totally the case. Firefox still should use the system resolver by default. It has additional local caching though. Firefox can be configured to use DoH bypassing _everything_ but for openSUSE builds this is disabled by default. Typically in my case it's exactly like in the top post. A direct follow up DNS request succeeds typically. Just with Firefox that is not the case because a failed request is cached for a minute. Wolfgang