klaas-
klaas- on Hacker News
Posted by
klaas- on Monday November 02, 2026 @03:55AM
from the ask-hn dept.
I've noticed a problem, and it happens reproducibly, but I have not seen this being talked about anywhere.Can anyone else reproduce that, I have reproduced it easily with several VMs in different locations, both RHEL/Ubuntu behave the same, so I am fairly sure this is on Azure side of tihngs, but not 100% sure :) Seeing as this should then happen with every boot between 12:00 and 13:00 UTC I am...
> This investigation is a useful reminder: running boring technology in a non-standard way is a risk. The common paths and standard configurations are incredibly well-tested and reliable. Most people use SQLite in a standard configuration and never face this sort of issue. Everything we were doing was a public, documented, supported configuration—but by taking manual control of the checkpointing process and running at our own aggressive pace, we stepped off the well-trodden operational path.
I feel like they missed a key takeaway from their own argument here, they should not be running a non-standard configuration :)
I would be interested in a severity score or something similar -- otherwise I can't judge how important it is to fix -- is this a "friday right now" problem or a monday is fine problem ;)
Posted by
klaas- on Friday July 31, 2026 @09:13AM
from the ask-hn dept.
Hi,
it seems azure has announced that all VMs world wide that run trusted launch need to be rebooted because of an unnamed security fix.Does anyone have details on how bad the problem actually is?Text of the security advisory:You’re receiving this notification because you’re associated with one or more Azure subscriptions that currently use affected Azure virtual machines with Trusted Launch...
from a company (RHEL users) POV: EntraID support -- we're using
https://learn.microsoft.com/en-us/entra/identity/devices/how... for SSH at the moment (not really happy with it but I don't have a better alternate) -- and that does not work for cockpit. So another way to authenticate against entra would be nice for corporate users
maybe I missed that, but why not just combine ptp and ntp within chrony, it does support that.
I think a very short lived cert (like 7 days) could be a problem on renewal errors/failures that don't self correct but need manual intervention.
What will let's encrypt be like with 7day certs? Will it renew them every day(6 day reaction time), or every 3 days (4 days reaction time). Not every org is suited with 24/7 staffing, some people go on holidays, some public holidays extend to long weekends etc :). I would argue that it would be a good idea to give people a full week to react to renewal problems. That seems impossible for short lived certs.
I'd say the primary problem of framework is security updates for bios etc
yeah, that was my suspicion as well, seems that AI generated content is mixed with seo-spam or malware. I even tried to report feedback.azure.com as a deceptive site to the major browsers, but they don't share my concerns ;)
I think Microsoft has a general problem with getting rid of unwanted things within their eco-system. I keep complaining that their feedback.azure.com portal is filled with spam/malware comments and links, but even internally their teams can't reach anyone to get it fixed. Example
https://feedback.azure.com/d365community/idea/9d0b22d8-c025-...
any of those switches in the right price range for home? I've been looking for a cheap SONiC switch for a long time but those on the supported hardware list are all rack/datacenter sized I would say -- and none do PoE which I really need for home usage (cameras, wifi APs)
I have a Framework 13 (12th Gen). I have no complaints about the hardware quality.
I love the replace everything concept. I rarely do that though, my ports are always the same - 2x usb-c, 1x usb-a, nic (bulky I remove that one for traveling and replace it with another usb-c).
Having said all that, I would not buy another one right now. The software side of things is just not up to what I expect. They still have not figured out lvfs for this notebook; the last bios update I could install was a manual EFI installer (which is beta at this point it in time I guess, only really "production" ready update is windows based installer). Also the bios I have is now a year old, and there only has been one non-beta bios upgrade in the whole lifetime of this model (~2.5 years). So the software side of things is just miserable... At this point in time I guess the next machine will be something with coreboot+lvfs and regular, timely updates (still taking suggestions ...). I guess I would be willing to give a framework+coreboot situation another try in a couple of years. The main reason for buying this is reusablilty once I decide to move on to the next hardware generation.
Posted by
klaas- on Wednesday August 21, 2024 @09:53AM
from the ask-hn dept.
I have recently started playing with trusted launch to enable secure boot, it seem the Azure feature is taking memory out of the VM memory (50MB), I could not find any docs on this, is that normal/expected? I would expect that this kind of overhead comes out of Microsofts budget not the VMs memory :)Example where it takes nearly 10% of the VM memory:VM before enabling trusted launch...
they do talk about actual usage in the talk, but only vcpu wise, not instance wise. For vcpus it's also more than 60% linux
the actual talk (video in article) says more than 60% of VM vcpus are from linux VMs, it does not talk about instances though. But I would expect Linux to be a lot of very small and very large VMs :)
you can use azure files nfs, that should be posix compliant, but it comes without auth or encryption ... :)
Posted by
klaas- on Friday April 12, 2024 @09:58AM
from the ask-hn dept.
Hey,
we've been seeing some unusual latency between and inside zones (within the same region) in Azure. Usually between zones rtt would be 1.1-1.5ms, for a couple of days we're seeing averages of 4ms and individual pings up to 20ms. It seems to happen with Dv4/Ev4/Dv5/Ev5 (accelerated network) VMs only. Inside the same zone rtt would usually be 0.5-1ms, now that is upto 8ms, average around...
I also have a follow up to this topic. I would say it looks like in Azure nobody is verifying TCP checksums. A bitflip in tcp payload should have been noticed at the NIC/tcp level but it reaches my application with corrupted data.
after a full day of searching for a possible cause, someone from microsoft suggested that they try to move the express route gateways (which are seemingly VMs inside of Azure) to a different hypervisor. For now it seems like the first gateway was flipping bits and on new hardware it is running normal again... That was a very interesting day troubleshooting wise
so my guess would be there are more than a few devices between the edge and the express route gateway (which is more or less a VM I was told). So I am guessing right now someone is trying to figure out what hardware is involved in between the two points we captured and looking at that stuff :) For me as a customer that's just a big black box (cloud)
yeah, that's what we did. We captured it at the last place in our network (a router) and then compared the tcp payloads to the packets that we received in azure in our firewall. Next step was to get the dumps from as much inbetween as possible, it seems that is only the edge router of Azure and our express route gateway. After looking at the pcap of the azure edge myself I verified that the package is still okay there, the MS support verified it's broken in the express route gateway, so it has to be flipped somewhere inside their Azure Germany network stack. They are still searching where ... :)
So it seems this is their software defined network, the packets still look good when entering via the microsoft edge routers and they get bitflips on their way into our express route
Posted by
klaas- on Saturday October 28, 2023 @08:47AM
from the ask-hn dept.
It seems we are having bit flips inside of packets coming into Azure (Germany West Central) via our Express Route. Anyone else seeing this?