iiinova — where your digital self keeps evolving

Ben Cartwright-Cox @benjojo.bsky.social · 05/06/2025

New Blog! There is lots of RFC1918 space out there, yet most people use the same 10 /24 subnets I ended up having my OOB LAN collide with someone's home network a few weeks ago, and decided to find a new subnet to use that won't collide backed up with actual usage data!

blog.benjojo.co.uk

Picking uncontested private IP subnets with usage data

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Ben Cartwright-Cox @benjojo.bsky.social · 27/05/2025

On May 20th 2025 a BGP message was propagated that triggered some surprisingly disruptive behaviours with two major BGP implementations make up a lot of the internet. In a new blog post, I will dissect what that message was, and my thoughts on how it happened: blog.benjojo.co.uk/post/bgp-att...

blog.benjojo.co.uk

BGP handling bug causes widespread internet routing instability

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Reposted by Ben Cartwright-Cox

BGP.Tools @bgp.tools · 12/02/2025

After sitting on the decision for quite a while, bgp.tools will be switching away from posting updates on X. Users can follow this account, or the fedi account @bgptools@bgp.tools instead

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Ben Cartwright-Cox @benjojo.bsky.social · 05/12/2024

New blog post! Ever wondered about the process that grants RFC numbers for documents? Well, worry no more, introducing: -- The “simple” 38 step journey to getting an RFC blog.benjojo.co.uk/post/rfc-in-...

blog.benjojo.co.uk

The "simple" 38 step journey to getting an RFC

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Ben Cartwright-Cox @benjojo.bsky.social · 22/01/2024

Much like sisyphus is forced to roll a boulder up a hill for eternity, I am now getting payback for buying cheap QLC SSDs that I am seemingly vaporising at the moment

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Ben Cartwright-Cox @benjojo.bsky.social · 11/01/2024

It has been 0 days since someones Apple webcam "Reaction Effects" have triggered on a serious biz call

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Ben Cartwright-Cox @benjojo.bsky.social · 07/01/2024

I've published a text version of my #37C3 lightning talk! "The browsers biggest TLS mistake" blog.benjojo.co.uk/post/browsers-bi…

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Ben Cartwright-Cox @benjojo.bsky.social · 25/12/2023

Happy xmas, see some of you soon at #37c3 (Bonus cat pic)

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Ben Cartwright-Cox @benjojo.bsky.social · 24/12/2023

I've got a lightning talk/rant coming up at #37C3! Hope to see you there: pretalx.c3voc.de/37c3-lightningtalk…

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Ben Cartwright-Cox @benjojo.bsky.social · 19/12/2023

*bangs hands on table* DATA DATA DATA DATA DATA DATA DAT-

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Ben Cartwright-Cox @benjojo.bsky.social · 19/12/2023

As far as I can tell where the Grindavík (Iceland) eruption has surfaced, is around 13km (as the crow flies) from one of the larger data centres in Iceland... Must be some good disaster response emails going around at the moment!

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Ben Cartwright-Cox @benjojo.bsky.social · 14/12/2023

Looks like Hetzner (24940) typo'd a BGP prepend (2490) when doing traffic engineering towards CoreBackBone (33891). Woops. It makes it look like Raytheon are upstreams when they are not! bgp.tools/prefix/95.216.0.0/16#conn…

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Ben Cartwright-Cox @benjojo.bsky.social · 14/12/2023

Finally got Office XP working, Look at this! WordArt never got better than this

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Ben Cartwright-Cox @benjojo.bsky.social · 12/12/2023

Say hi to datacenter car park fox who was taking a break from the rain.

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Ben Cartwright-Cox @benjojo.bsky.social · 12/12/2023

I like big cables and I cannot lie

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Ben Cartwright-Cox @benjojo.bsky.social · 12/12/2023

Hm, so a small DLR station takes "only" 25kW to run, based on this emergency generator readout

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Ben Cartwright-Cox @benjojo.bsky.social · 13/11/2023

We are so close to 1.7B Unix epoch

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Ben Cartwright-Cox @benjojo.bsky.social · 10/11/2023

For some reason the Ceph dashboard is like a fish tank, I literally just keep staring at it. Especially right now as it's doing a transfer from the old storage machine to the new setup (for bgp.tools)

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Ben Cartwright-Cox @benjojo.bsky.social · 10/11/2023

Ooooh, the 0th longitude laser is very visible tonight in London

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Ben Cartwright-Cox @benjojo.bsky.social · 24/10/2023

My NANOG 89 talk on the internal operations of bgp.tools is up on youtube! www.youtube.com/watch?v=83NJllv0q9U

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Ben Cartwright-Cox @benjojo.bsky.social · 24/10/2023

My NANOG 89 version of my "Discovering flaws in BGP error handling" talk is now up on youtube! www.youtube.com/watch?v=-_VBehyNwqg

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Ben Cartwright-Cox @benjojo.bsky.social · 23/10/2023

Graph improvements to bgp.tools! On the bgp.tools BGP propagation graphs there are now names attached to the network boxes to help faster comprehension. In addition, font profiles for the graphs have been normalised between Linux/Windows/Mac

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Ben Cartwright-Cox @benjojo.bsky.social · 20/10/2023

Google maps appears to think I can walk on water?

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Ben Cartwright-Cox @benjojo.bsky.social · 20/10/2023

Finally a interface perfect for the gentoo users out there

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Ben Cartwright-Cox @benjojo.bsky.social · 20/10/2023

"why do we even have those on an aircraft carrier" (Taken on the USS Midway)

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Ben Cartwright-Cox @benjojo.bsky.social · 16/10/2023

ah yes, IPv4 prices are coming back down, nature is healing

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Ben Cartwright-Cox @benjojo.bsky.social · 15/10/2023

Bought a 7$ fidget toy while trying to find a C13 cable in the US

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Ben Cartwright-Cox @benjojo.bsky.social · 12/10/2023

Can somebody check in with the BBC sports people to see if they're all right?

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Ben Cartwright-Cox @benjojo.bsky.social · 12/10/2023

MySpace server deployment circa 2008, lifted from a last remaining bits of the [InfoQ](https://www.infoq.com/presentations/MySpace-Dan-Farino/) page about a talk done with them

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Ben Cartwright-Cox @benjojo.bsky.social · 11/10/2023

oh cool, I can blog from this NX-OS device?? They really can do everything :P

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Ben Cartwright-Cox @benjojo.bsky.social · 11/10/2023

``` RP/0/RP0/CPU0:Oct 10 14:36:02.877 UTC: appmgr[365]: %INFRA-APPMGR-2-DOCKER_DAEMON_STOP_FAILED : Unable to stop Docker daemon. ``` *sobs* why? why does the router chassis run docker

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Ben Cartwright-Cox @benjojo.bsky.social · 11/10/2023

There is something really pretty about long exposures of the beach at night, especially how the waves merge into a mist and how the offshore wind generation glows in the night

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Ben Cartwright-Cox @benjojo.bsky.social · 11/10/2023

Some pictures from coastal adventures last night, some of those subsea cable markers look better than others

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Ben Cartwright-Cox @benjojo.bsky.social · 06/10/2023

So @jonty@chaos.social yesterday gave me this BT pay phone card in passing. I've only just realised that it expired in 1998 and I don't know how long these things normally lasted, but this might mean the card is very close to my own age...

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Ben Cartwright-Cox @benjojo.bsky.social · 05/10/2023

Looks like we are not going to laser today

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Ben Cartwright-Cox @benjojo.bsky.social · 05/10/2023

Ok finally, I just crunched the numbers on my mbox and I been sending email like I've never before in the last year or so. The side effects of running bgp.tools semi-full time !

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Ben Cartwright-Cox @benjojo.bsky.social · 05/10/2023

My NLNOG Day 2023 talk recording is up! Called `BGP Error “Handling”`, this has been one of the few talks where I have re-watched it and had as much fun watching it as I had giving it! A welcome change. www.youtube.com/watch?v=6wMXEiFiueM

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Ben Cartwright-Cox @benjojo.bsky.social · 05/10/2023

Ah yes the high voltage telephone jack

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Ben Cartwright-Cox @benjojo.bsky.social · 05/10/2023

Not really the conference swag I was expecting, but I got to award the creativity ( still more useful than a fidget spinner )

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Ben Cartwright-Cox @benjojo.bsky.social · 05/10/2023

Must be your lucky day, we still don't have a deb repo or any kind of auto updater so you have to keep installing debs from our website!

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Ben Cartwright-Cox @benjojo.bsky.social · 05/10/2023

Ok, I now have a dedicated "repost to bluesky" button on my fediverse software. So this means I will now repost things from my fedi/honk to here. But don't expect me to see the replies!

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Ben Cartwright-Cox @benjojo.bsky.social · 28/04/2023

Hello new bluesky followers, you should know: A) I'm planning to use this account soon for some API tests, so prepare to be bombed with random stuff B) I'm still posting on the fediverse by default (@benjojo@benjojo.co.uk), since no text limits and no visible post metrics is better for me

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Ben Cartwright-Cox @benjojo.bsky.social · 28/04/2023

New blog post (in over a year!) Where I refuse to accept that a webcam that I remember from my childhood won't work anymore for Google Meet, and write a user space USB driver to bring it back from the obsolete dead: blog.benjojo.co.uk/post/quickcam-us…

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