On 19/04/2021 12.41, Carlos E. R. wrote:
On 19/04/2021 07.00, Jiri Slaby wrote:
On 16. 04. 21, 12:27, Carlos E. R. wrote:
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.
Does uninstalling nscd fix this?
I don't remember if I tried, but I can say that it affected both the computer and the android phone, both using Firefox, both worked in both using Chrome. And the phone doesn't have nscd.
I solved the problem by going to Firefox preferences, search "DNS", click on advanced, then on "Configure Proxy Access to the Internet" set "Use system proxy settings" (I don't have a proxy) and unclick "Enable DNS over HTTPS" down the page.
I tried to trigger the problem again, but it seems to have been solved. I'll describe in more detail the issue. I have a dynamic dns server pointing at my home. When power fails, my ISP gives me a new address. A cron job on my small server detects this and updates the external dns. A ping or ssh works instantly, pointing at the new address, but firefox keeps pointing to the old address, which now is assigned to another client of my provider, or to nobody, and thus, fails to connect to my apache. Today I tried twice, once after sending the previous email, and another now, power cycling my access hardware; the IP changed, but firefox, both on computer and android, keeps working, which means that the problem has been solved upstream meanwhile. -- Cheers / Saludos, Carlos E. R. (from 15.2 x86_64 at Telcontar)