DNS PROBE FINISHED NXDOMAIN Message

[leocg]

leocg Moderator Volunteer @Guest last edited by

@naidu Try testing the same DOH server with other browsers.

[A Former User]

A Former User last edited by

I try to use DOH server on Firefox 79 (Cloudflare and Quad9) and it work great.

On Opera 69 DOH work great with Cloudflare and Quad9 but with the new version, this don't work.

I try to delete Opera and install it again. But the same problem

[operaoperandi]

operaoperandi last edited by

Why DOH at all? I deactivated DOH in the browser and set Cloudflare (1.1.1.1 etc.) directly in the router as DNS server. No problems (Opera 70).

[A Former User]

A Former User @operaoperandi last edited by

@operaoperandi I know this but why it work with opera 69 and not with Opera 70 ?

[operaoperandi]

operaoperandi last edited by

Unfortunately I can't say anything about it, because I had always deactivated DOH. But I suppose that this is a bug in the latest version or it " gets stuck " with other settings. I would wait for the next update. Can't take too long.

[A Former User]

A Former User last edited by A Former User

This is definitely a bug it started happened few versions back and I am using beta versions. Are there any logs we can look to see?

[leocg]

leocg Moderator Volunteer @Guest last edited by

@david-fr Did you test it for at least a couple of days, in different times of the day?

[leocg]

leocg Moderator Volunteer @Guest last edited by

@david-fr It seems that regular DNS server is no longer used as fallback when DOH fails.

[A Former User]

A Former User @leocg last edited by

@leocg Yes. i use my computer and my browser all day. And with the last update i have this problem.

[A Former User]

A Former User @leocg last edited by

@leocg i will wait for an update. thanks

[leocg]

leocg Moderator Volunteer @Guest last edited by

@david-fr Update for?

[A Former User]

A Former User @leocg last edited by

@leocg an opera update

[leocg]

leocg Moderator Volunteer @Guest last edited by

@david-fr I don't think it will change anything.

[auxiliumdei]

auxiliumdei last edited by

Hey, all!
I don't know what's going on since few hours but I have sometimes this DNS error. The sometimes is important because I can't reproduce the error and when I reload the page, it works. So, basically, not a big bug but just an annoying fact.
I googled it, "patched" it: it changed nothing.
Any ideas?

[leocg]

leocg Moderator Volunteer @auxiliumdei last edited by

@auxiliumdei Read above, it happens when DOH/DNS fails.

[auxiliumdei]

auxiliumdei @leocg last edited by

@leocg Thanks for the redirection.
Apparently, this is a bug from Opera 70...
As It was working smoothly before...

[leocg]

leocg Moderator Volunteer @auxiliumdei last edited by

@auxiliumdei Nope, it's not a bug. In fact it's due to a improvement, I guess at least.

Before, when DOH server failed, the regular DNS was used as a fallback, what broke the idea of DOH. Now it doesn't happen anymore as it seems.

[auxiliumdei]

auxiliumdei @leocg last edited by

@leocg Ahah! Okay! Science!

[A Former User]

A Former User last edited by

For me, with the last update 70.0.3728.95 (Aug 5, 2020), all is ok now. DOH work.

[A Former User]

A Former User @leocg last edited by

@leocg said in DNS_PROBE_FINISHED_NXDOMAIN:

In fact it's due to a improvement, I guess at least.

Starting with the 70th version of the Opera, I also encountered this error. The error is random, disappears after reloading the page. There is no such problem in Chrome. I tried to find out what's the matter through DNSQuerySniffer: sometimes the site's DNS requests pass the DoH function, in this case this error occurs in Opera, Chrome DoH does not pay attention to it.
This appears to be a DoH security feature of Opera, although I'm not sure if it's convenient.