movq

www.uninformativ.de

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Recent twts from movq
In-reply-to » It was very humid and hot at our quick forest hike on Thursday last week. The announced thunderstorm didn't struck, but rain was definitely a thing in the distance.

@lyse@lyse.isobeef.org Oof, that’s a big boi. Also, nice lens flares. 👌

That caterpillar took me to this interesting thing: Apparently, some butterflies only eat when they’re a caterpillar. Once they turn into a butterfly, those species can’t eat anymore. They then die after a week or so. 😳

https://en.wikipedia.org/wiki/Saturniidae#Adults
https://de.wikipedia.org/wiki/Glucken_(Schmetterlinge)#Lebensweise

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In-reply-to » Phew, our yearly big flea market this weekend is over. It was cancelled for obvious reasons in the last two years. We got donated a bit more material than usual I'd say. In the end the big multipurpose hall was packed like nothing. Every square centimeter on and below the tables was occupied with things. Residents donate all sorts of stuff they don't need anymore to our local scout group on Saturday and we go through it, sort it and sell it on Sunday to the general public. All profits go to our youth work.

@lyse@lyse.isobeef.org Yes, exactly, I noticed lots of “decoration crap” on those photos, that’s why I asked. 😅 Sounds like a nice bell curve distribution of people.

(I just realized I never heard of an event like this in my area. Hmm.)

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In-reply-to » Phew, our yearly big flea market this weekend is over. It was cancelled for obvious reasons in the last two years. We got donated a bit more material than usual I'd say. In the end the big multipurpose hall was packed like nothing. Every square centimeter on and below the tables was occupied with things. Residents donate all sorts of stuff they don't need anymore to our local scout group on Saturday and we go through it, sort it and sell it on Sunday to the general public. All profits go to our youth work.

@lyse@lyse.isobeef.org People sure are donating quite a lot. 😲 Is it useful stuff? I hope they don’t just dump their old garbage on you. (Although it might be hard to tell sometimes if things are still useful …)

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In-reply-to » Spent the last few days debugging network issues at work.

@mutefall@twtxt.net IIRC, we gave Juniper a try a while back. 🤔 Something wasn’t right, but I don’t remember anymore what it was (probably the API not being available or not good enough?). 🫤 But this was 5 years ago or more, maybe it has changed …

I hope we can stay with MikroTik for a while. Changing switches is not that much fun. 😂

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In-reply-to » Spent the last few days debugging network issues at work.

@prologic@twtxt.net I’ve tcpdump’ed and wireshark’ed the shit out of this. 😂 It’s not very helpful. I’d need to gain insight into the decision making of the switch itself. Why does it drop certain packets? That’s almost impossible to find out (unless it happens to be included in the switch’s logs, which it usually isn’t).

Like @mutefall@twtxt.net said, it’s usually some kind of misconfiguration. Hence you begin to dump the entire switch config into a file and then run diff against the config of a working switch. 🤣 Sometimes this approach works, sometimes it doesn’t …

We recently changed from Cisco to MikroTik switches. At least those switches offer some kind of basic API, which means we can configure them via our config management – instead of using the switch’s web UI or SSH, like some cave men. That should make our life much easier.

Honestly, all the switches I’ve seen so far were total crap. So far, MikroTik is the best thing. Maybe there are actually good switches out there, but they probably cost a ton of money, and we can’t afford that.

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In-reply-to » Spent the last few days debugging network issues at work.

@prologic@twtxt.net In this particular case: Figuring out why a switch decided not to forward ARP broadcasts to certain switch ports. Like, you connect two devices to the switch ports 3 and 4 and they can ping each other – but when you move one of them to port 5, no ping anymore. So, rather low-level stuff.

Or, we have another switch that intermittently doesn’t respond on its management IP anymore (even when you connect your laptop directly to the switch with no other networking hardware in between). I still haven’t figured out this issue.

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Spent the last few days debugging network issues at work.

Exhausting. You never get a full picture. You poke a little here, poke a little there, … Form a hypothesis and test it. Eventually, maybe, you can narrow it down a bit to some segment or even some component.

A very time consuming process. Even more so if you try not to cause downtimes for your users.

I want a magical device that allows me to look inside a cable/fibre.

But hey, at least we got rid of a bunch of Cisco switches in the process. So there’s that.

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