Occasional issue I can't wrap my head around

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1

Hello,

Basically: look at that terminal screenshot: https://imgur.com/a/7H2Ctu9 :slight_smile:

I have an occasional issue on my dedi, nothing horrible, but on top of all it’s getting me genuinely curious.

On the present screenshot (again: https://imgur.com/a/7H2Ctu9 ), it shows a Bind that didn’t work anymore, which led to all the websites I host being taken offline. When I noticed, it had been a few hours already.
But 3 or 4 weeks ago, I had a Dovecot down with very similar errors, too.
The rarity of these events, and the fact that a restart (either of the service, as with Dovecot earlier, or a reboot of the server, as with Bind9 that wouldn’t accept to restart here) fixes it, makes it trivial, in itself.

Simply said, I don’t know what that issue may entail, or what may lead to it happening.
Plus, with my level of skill, I don’t even know where to start. If I had enough skill, I wouldn’t come to ask, right? :smiley:

And yet, it’s gotten me intrigued.

Please, would that be familiar to some of you, by any chance, that kind of error?
Would you have “leads” in such a case, to know in what direction to look?

Thanks if you have a clue to share!

2

I don’t have an answer to your question about why services fail occasionally, but a timely alert will help you offer better uptime.

3

You may want to look at your dmesg file when it happens to see what went wrong.

#dmesg

or sometimes you’ll want to grep terms since it can get big
#dmesg | grep interface

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