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Joined 1 year ago
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Cake day: June 14th, 2023

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  • I found this diagram on SO at one point but I can’t find the post and it is the best explanation I have found for how all of the files work for bash and zsh, each color is an individual path of execution (eg, follow the red line).

    Bottom line though, it only really matters if you are overriding something that is already defined, for example I tell my users to use zshrc and I provide defaults and common things in zprofile because zshrc is executed last when they login.



  • So if I understand this right you will need to change the network on the port attached to the synology in your UniFi configuration or set the vlan tag in the synology OS, I would do the former. It sounds like you just added a second network/vlan to the existing interface which means you actually created a trunk and are getting the old network untagged and the new network with vlan tags which the synology is dropping. Synology OS also doesn’t really support trunked ports through the UI (even though it does support a port that only uses a vlan tag) so it’s much easier to just leave them untagged.




  • I mean sure but that’s a lot of words to say “I didn’t read the directions and no one caught it in a merge request review because no one else read the directions either.”

    Their documentation and examples are pretty easy to read and the site parameter is explained in the getting started guide and even linked from the readme for the JavaScript sdk, and in lots of sample configurations so I’m not sure how this made it into a release and then no one noticed the missing metrics for eleven days, sounds like lots of issues in that shop.

    The behavior of the sdk isn’t great but the proposed solution wouldn’t work because you can use custom endpoints for all of the components using endpoints on domains you own anyway.





  • Well 5ghz requires more power, has less range, and needs its own antenna so for microcontrollers this makes it pretty pointless for devices that need range and low bandwidth for sending sensor updates, especially those that are battery powered. 5ghz can also have its own issues in cities if you have a lot of use of the DFS bands as well as being worse at traversing reinforced concrete.

    Also, a 2.4ghz radio can also sometimes support other things like zigbee, BT, and BLE which can be used for other functions.

    For what it’s worth, I have probably 50 WiFi devices and the majority of them are 2.4ghz sensors or switches and other low bandwidth tasks and I don’t have any issues, even when living in an apartment complex. If you are having issues you might need different hardware or more access points or something.

    Anyway, all that to say that 2.4ghz definitely still has a lot of utility today.





  • Yeah I’m with you, I read most of it but I just don’t know where the disdain comes from. At most scales of infrastructure anymore you can use them interchangeably because the difference is immaterial in practical applications.

    Like if I am going to provision 2TB I don’t really care if it’s 2000 or 2048GB, I’ll be resizing it when it gets to 1800 either way, and if I needed to actually store 2TB I would create a 3TB volume, storage is cheap and my time calculating the difference is not.

    Wait until you learn about how different fields use different precision levels of pi.






  • I think what this person is saying is that systems and services have been monitored for metrics and logs for a long time, I know I have been doing it for more than 20 years across many OS, hardware platform, and software stack. The tools and depth of the integrations have definitely changed and gotten way better and more sophisticated but I definitely made systems that monitored and healed themselves to varying levels of efficiency since at least using Nagios in 2003 (I’m getting Perl PTSD flashbacks now hah).

    One thing that has definitely gotten better in the last 5 or so years though is code level instrumentation and tracing as well as the higher level correlation tools. I have also seen more developers and vendors way more willing to implement monitoring features in their code from the beginning leading to more data and less duct tape and guessing which has been FANTASTIC.

    Anyway, great post though, the monitoring arena is definitely way more awesome than ever before these days that is for sure.