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karppinen

@karppinen@mastodon.online

Soup to nuts newspaper nerd. Mobile apps, web, bare metal servers, 100G networking, running a small business. AS60354

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karppinen, to random
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Finally crunched the numbers on the Helsinki-Stockholm-Hamburg-Barcelona-Helsinki trip. 5678 km, 1380 kWh, 24.3 kWh / 100 km. Not great efficiency-wise, but 1) drove pretty fast most of the way and 2) have the stupid 20” energy hog wheels

karppinen, to random
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Is there an explanation for why LEGO keeps sprinkling trademark symbols absolutely Everywhere™️? Surely that’s not legally required to protect something like Star Wars IP

karppinen,
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@janl okay but somehow I’m still convinced that if someone cared enough they could get rid of them or at least most of them

karppinen, to random
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So I just recovered 1) configs 2) feature license keys 3) OpenSSH private keys and 4) MD5 hashed user account passwords from a zeroized Juniper switch.

Probably good to know that zeroize doesn't actually, you know, zeroize.

azonenberg, (edited ) to random
@azonenberg@ioc.exchange avatar

Anybody have any docs or performance figures for how much CPU is "enough" for routing/firewalling a given amount of bandwidth?

My current core router (Debian box with an i3-4160 and a dual 10G NIC plus some 1G interfaces) is getting long in the tooth and doesn't have enough PCIe lanes to add all the stuff I want, so I'm planning its retirement some time later this year.

I'm targeting ~10 year lifetimes for new builds at this point, so it needs to have the oomph to last through a bunch of network upgrades.

I'm thinking I would be happy with something that could handle 40G or 100G cross-vlan traffic (plus a few hundred Mbps to/from the internet but that's negligible) in a router-on-a-stick configuration.

But I have no idea how much CPU you actually need to do this. Currently eyeing a Xeon 5416S (EDIT: or a 5415+ which is half as many cores but significantly higher Fmax) somewhat arbitrarily, but I have no idea if this is overkill or insufficient.

karppinen,
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@azonenberg @gsuberland I worry about the energy intensity of doing 100G routing in software if it’s really going to be just some static routes (unless you specifically want to work on that routing software). Something like the MikroTik CRS504 will do it and pull <30 watts from the wall as a router-on-stick.

karppinen,
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@azonenberg @gsuberland what, 64MB RAM and 16MB flash not enough for you??? yeah, it won’t do all that but for the static routes plus perhaps the DHCP, it’d do the trick

karppinen, to random
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Had my eardrum rupture today, bloody mess. I've clearly had a sheltered life since that was the most pain I've ever experienced. Went to urgent care (“come back tomorrow" cost 338€), the very nice super good hotel agreed to extend my stay for two more nights even though they're sold out. So I'm hanging in there.

karppinen,
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I don't usually have ear trouble but when I do, it’s invariably when travelling. Last time was in Hong Kong, the public hospital there expedited me ahead of everyone and charged something like $50 for the privilege.

karppinen,
@karppinen@mastodon.online avatar

@janl will know more tomorrow with the specialist appointment. But I drove over some mountain roads in the Pyrenees yesterday with an ear canal blocked, got some ear drops to dissolve the blockage today, they did the job and I guess somehow the pressure differential was still there after 24 hours or so -> boom

karppinen,
@karppinen@mastodon.online avatar

The doctor's verdict is in: “your ear is very bad”

karppinen,
@karppinen@mastodon.online avatar

@janl got some pretty heavy medication + ban on flying (good thing I drove) + follow-up in 7-10 days. so nothing drastic so far

karppinen, to random
@karppinen@mastodon.online avatar

what if humans also just predict the next token tho

karppinen,
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@osma I've been driving for a week singing along to top 40 hits and I suspect that might describe me

karppinen, to random
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It’s the start of my European tour! On a ferry from Helsinki to Stockholm now. Tomorrow, it’s an MX204 install in Stockholm, then off to Hamburg to set up a new PoP. The final destination is our new edge location in Barcelona. I think I’m going to see a LOT of chargers over the next week.

karppinen,
@karppinen@mastodon.online avatar

@janl thanks! Slight autobahn anxiety…

karppinen,
@karppinen@mastodon.online avatar

Road trip update! MX204 install in Stockholm is done, but took two hours more than I thought (I didn’t have a config ready to go). Now in the lovely Clarion Collection Hotel Victoria in Jönköping, where they called me on the way to ask if I wanted some food from the evening buffet kept for me (the buffet closed two hours before I got here). !!!

image/jpeg

karppinen,
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Day three, last stop in Sweden at Glumslöv.

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karppinen,
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Denmark! What’s the max wind rating for these windsocks?

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karppinen,
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Hamburg I am in you! My just-in-time process involves only now starting to think about configs for the devices I’m hoping to install tomorrow.

karppinen,
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Hamburg done, but again took longer than I thought (I see a pattern emerging). Hoped to get to Strasbourg tonight but I’m settling for Dortmund.

image/jpeg

karppinen,
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In Dortmund I accidentally ended up in a hotel that was closed off to house the Atlético players. The Spanish-speaking security folks asked what I was doing there, and I told them I was there to pee. They were super nice and let me do just that!

Made my way to Dijon quickly after that.

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karppinen,
@karppinen@mastodon.online avatar

@janl I made the classic mistake of arriving in a French town after 7 pm. Everything is closed

rolle, to apple
@rolle@mementomori.social avatar

A question for Apple Watch users: Series 9 or Ultra? Is Ultra too big? Which one to buy? I currently have a Fitbit Sense which is 40.48mm (1.58in) and moving on to the Apple world.

Please note: I am not looking for any price or ecosystem discussion here, I just want to hear more about the Apple Watch user experience. Thanks in advance.

karppinen,
@karppinen@mastodon.online avatar

@rolle I went from a 45mm to the Ultra and it’s definitely more sports-watch-y. Just based on size alone I would choose the 45mm.

But the Ultra was actually cheaper than the steel 45mm I looked at, so overall I’m happy with the purchase.

karppinen, to Redis
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There’s a combo hot take brewing in my head about the and debacles.

It goes something like:

When the shit hits the fan and part of the reason appears to be an overworked and underpaid maintainer, lots of people come out of the woodwork to demand more respect and money for them.

But when a maintainer recognizes that they’re in an unsustainable situation and dares to make a proactive change, well FUCK THAT GUY. WHO THE HELL DOES HE THINK HE IS?

azonenberg, to random
@azonenberg@ioc.exchange avatar

Assembling the trigger crossbar board over lunch.

Not thrilled with the paste print quality, very inconsistent. the top left corner was way too thick as the board flexed during printing, the middle BGA skipped some pads, and the WLCSP in the bottom right was near perfect.

These big boards bend too much in my paste fixture, I need to find a way to prevent that before I do any more boards of this scale.

karppinen,
@karppinen@mastodon.online avatar

@azonenberg I've been following this saga for the past month or so and my theory is that you've actually done all this work over a three-year period and have chosen to time the toots over this much shorter period to project an image of superhuman ability

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