today's howtos
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A different take on the NUMA OOM killer story
I was digging through some notes on old outages tonight and found something potentially useful for other people. It's something I have mentioned before, but it seems like maybe that post didn't have enough specifics to make it really "land" when someone else does a web search.
So, in the hopes of spreading some knowledge, here is a little story about a crashy service.
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Installing a Commercial SSL Server Certificate (nginx)
Since CACert still isn't "Browser Trusted", and I still don't want to use letsencrypt, I decided to give this a try. The company resides inside the European Union and is the cheapest I could find.
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Installing a Commercial SSL Server Certificate (nginx) | dt.iki.fi
Since CACert still isn't "Browser Trusted", and I still don't want to use letsencrypt, I decided to give this a try. The company resides inside the European Union and is the cheapest I could find.
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It's probably not the hardware, a sysadmin lesson
Once we noticed this, we flailed around looking at various things and wound up reforming the machine's NTP setup to be more standard (it was different for historical reasons). But nothing cured the problem, and last night its clock wound up seriously off again. After all of this we started suspecting that there was something wrong with the machine's hardware, or perhaps with its BIOS settings (I theorized wildly that the BIOS was setting it to go into a low power mode that OpenBSD's timekeeping didn't cope with).
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