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Hope you never notice the outages I cause. Knows where the RFC2616 bodies are buried. recurse.com SP'2 18

Follow me using: @benjojo@benjojo.co.uk in your client

benjojo posted 06 Feb 2025 11:42 +0000

I'm doing some well needed scanning and shredding of old letters, and I just came across this 2017 letter from Hargreaves Lansdown claiming that brexit is likely not going to be that bad

"""
Nevertheless, what seems clear to me is that the vote to leave the EU has so far not been anywhere near the economic disaster many predicted
"""

Oh if they could see into the future

A scanned letter with the critical part being " Nevertheless, what seems clear to me is that the vote to leave the EU has so far not been anywhere near the economic disaster many predicted"

benjojo posted 06 Feb 2025 00:15 +0000

OH HELL NO.

This is my name on a version of the Glue pizza/Gasoline spaghetti moment.

Other than shitposting about EVPN on fedi and maybe IRC, I've not done anything publicly to do with EVPN.

Urghhhh

Google search query results for "benjojo evpn" and the AI overview is "Benjojo has written blog posts about a variety of topics, including Ethernet switches, SFPs, and IX networks. EVPN, or Ethernet Virtual Private Network, is a WAN technology that's often used in data centers and campuses"

benjojo posted 05 Feb 2025 20:07 +0000

Thinking back to around that (2017-2020~) time where my primary phone had basically a stock-ish android camera setup.

I don't think the phone took very good photos almost all of the time, but there's this weird aesthetic that it sometimes nailed (sort of a dreaming in space kind of feeling) where the HDR would combine to make something quite unique and appealing, while also being a signature to these kinds of cheap phones.

I get oddly nostalgic when I see the "overprocessed HDR" aesthetic in other peoples clearly cheap android phone photos, I suppose in the same way that some people adore the ascetic that very cheap/broken film cameras give

(Sorry not alt text here, and if I don't add alt text my fedi software does weird stuff) (Sorry not alt text here, and if I don't add alt text my fedi software does weird stuff) (Sorry not alt text here, and if I don't add alt text my fedi software does weird stuff) (Sorry not alt text here, and if I don't add alt text my fedi software does weird stuff)

benjojo posted 05 Feb 2025 18:16 +0000

"I miss you, too" being suggested by machine just feels like the ultimate "mechanization of conversation" by allowing the outsourcing thought in what are intimate/vulnerable moments. I don't really know how to describe this, but it really does feel quite disheartening


I have a Pixel 7, and google appears to have taken the stance that the feature that they put on gmail where they try and guess a appropriate sentence to reply with, should also be taken onto the keyboard on phones.

And (IMO) there is some kind of use in this with email, as it turns out that many emails can simply just be responded with "OK"/"yes"/"go for it", and that's basically what the gmail interface excels at (I've never seen it attempt to suggest anything more complex).

I've left this feature on my phone for a while a sort of "useless but i'm not going to get out of my way to disable it", until recently where I've got this suggested reply which kind of put a bunch of existential dread in to me.

This being a google-ism of course, trying to disable this feature is quite difficult because you not only have to go and disable it on "gboard" but you also have to go and find a page about 5 taps into the settings page to actually stop the UI of the phone itself from trying to suggest the message as a tool tip (see pictured). I would be surprised if many people have.

It all just seems... sterile. It's a cliche sure, but it does make me wonder for the future if we hand over moments like this over to word models of the average person replying.

A cropped photo of a signal message text box, with a system popup/tool tip of a suggested reply of "I miss you, too".

benjojo posted 05 Feb 2025 15:53 +0000

I've lost track of how many "Updates on Lets Encrypt Subscriber Agreement & Ending Expiration Notification" I've gotten already

Turns out, I am inconsistent with email addresses!

benjojo posted 04 Feb 2025 19:09 +0000

Talking of ping quirks.

If you have a IP address with more than one PTR on it's reverse DNS like so:

$ dig -x x::6969 +short
hoho.b621.net.
haha.b621.net.
hehe.b621.net.

If you ping it (on seemingly older versions of ping) it will pick a random PTR to display per ping.

Resulting in amusing displays like:

# ping hehe.b621.net
PING hehe.b621.net(haha.b621.net (x::6969)) 56 data bytes
64 bytes from haha.b621.net (x::6969): icmp_seq=1 ttl=64 time=0.094 ms
64 bytes from hoho.b621.net (x::6969): icmp_seq=2 ttl=64 time=0.104 ms
64 bytes from hehe.b621.net (x::6969): icmp_seq=3 ttl=64 time=0.110 ms
64 bytes from hehe.b621.net (x::6969): icmp_seq=4 ttl=64 time=0.136 ms
64 bytes from hoho.b621.net (x::6969): icmp_seq=5 ttl=64 time=0.132 ms
^C
--- hehe.b621.net ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4075ms
rtt min/avg/max/mdev = 0.094/0.115/0.136/0.016 ms

This was noticed because for some reason, one of Google's net infra IPs has 3 different PTRs, in two different city metros

$ dig -x 216.58.201.110 +short
prg03s02-in-f110.1e100.net.
prg03s02-in-f14.1e100.net.
lhr48s48-in-f14.1e100.net.

benjojo posted 04 Feb 2025 18:36 +0000

When a prefix ( 172.224.198.0/24 ) flaps so hard that every ping gives you a new router TTL expired. Bonus points in that it once actually got to it's destination!

$ ping 172.224.198.1
PING 172.224.198.1 (172.224.198.1) 56(84) bytes of data.
From 23.197.75.102 icmp_seq=1 Time to live exceeded
From 129.250.4.148 icmp_seq=2 Time to live exceeded
From 23.210.55.38 icmp_seq=3 Time to live exceeded
From 129.250.2.175 icmp_seq=4 Time to live exceeded
From 129.250.2.93 icmp_seq=5 Time to live exceeded
From 129.250.2.92 icmp_seq=6 Time to live exceeded
From 23.197.64.65 icmp_seq=7 Time to live exceeded
From 129.250.7.17 icmp_seq=8 Time to live exceeded
From 129.250.4.222 icmp_seq=9 Time to live exceeded
From 129.250.3.12 icmp_seq=10 Time to live exceeded
From 129.250.2.175 icmp_seq=11 Time to live exceeded
64 bytes from 172.224.198.1: icmp_seq=12 ttl=53 time=21.8 ms
From 5.158.213.66 icmp_seq=13 Time to live exceeded

( a good spot by @basil )

benjojo posted 04 Feb 2025 15:26 +0000

Oh come on, what a cop out of a danger sign.

Tell me where the danger is!

It generic warning signs stuck on a door that says building sites are dangerous keep out but with the standard ISO warning signage

benjojo posted 31 Jan 2025 19:18 +0000

I wonder how often on live DJ gigs is there a talkback style RF channel open with what is going out to the monitors/amps, and how plausible it is to bring a not-bomb-looking phone+SDR setup to dump it during a gig.

In unrelated news, I can't wait for a more clean version of whatever this ID to come out

benjojo posted 31 Jan 2025 16:33 +0000

Well, I guess "fuck me" for trying the greener option I guess

A "trainline" screenshot with "You have been blocked."

benjojo reposted 30 Jan 2025 17:36 +0000
original: jonty@chaos.social

Turns out the cure for impostor syndrome is discovering quite how incompetent the person who previously did the job was

benjojo reposted 30 Jan 2025 16:23 +0000
original: benjojo@benjojo.co.uk

My best guess is on a reasonably loaded Intel SP1 system, a SSH connection setup takes 0.007 Joules of power.

A random machine I picked out has 15200 SSH connection setups a day

0.007 * 15200 = 106.4J ~ 0.0000279 kwH

A rough estimate on the amount of accessible SSH servers is around 16,280,000 (based on some scanning stuff from 2 years ago)

16,280,000 * 0.0000279 kwH = 454.212 kwH (a day)

or a constant ish 18.925kw of power.

And that is only assuming one party , so likely 2x, so all of the SSH bruteforces going around is costing around 38kW of power.

on one hand, not that bad (there are some DCs that can put that into a single rack), on the other hand, that's quite a lot of wasted CPU energy

benjojo posted 30 Jan 2025 15:37 +0000

I wonder what the overall global power consumption is caused by SSH brute force attempts.

I guess I need need to figure out how many joules a SSH connection setup costs on a average system ...

benjojo posted 30 Jan 2025 12:18 +0000

Heh, I've reached the bgp.he.net top {N} IX Participation list with the bgp.tools route collector!

There are a good 20~ other IXs still in progress (some slower than others)

This also reminds me that I should probably figure out porting AS212232 away from my name and to the actual bgp.tools legal entity

the bgp.he.net UI for " Internet Exchange Report "  -> "Exchange Participants" -> " IX Participation Count ", the top is Cloudflare at 338 IXP, and the list is 20 networks long, I am number 18 with 96 IXPs

benjojo posted 28 Jan 2025 23:03 +0000

I feel like I am rapidly approaching the LD50 of supplier security/legal onboarding surveys this month

benjojo posted 27 Jan 2025 19:57 +0000

MEMS devices purely exist for that scanning election microscope that speaks to the "scary alien tech" vibe that everyone fears.

benjojo posted 27 Jan 2025 17:19 +0000

Love getting this stuff over SSH:

Message from syslogd@ordat at Jan 27 17:15:00 ...
 kernel:[791344.547831] Internal error: Oops: 96000004 [#1] PREEMPT SMP

Message from syslogd@ordat at Jan 27 17:15:00 ...
 kernel:[791344.569675] Code: f90013f5 f9418014 f9404e95 d503201f (f94016a0) 

It's like seeing the smoke outside of the firework factory just before it explodes

benjojo posted 23 Jan 2025 17:23 +0000

Really quite considerate for the severe weather to respect the border of Northern Ireland

a Map of the UK overlaid are Yellow and Red weather warnings, in Ireland the warnings stop directly on the border between Ireland and Northern Ireland

benjojo posted 22 Jan 2025 00:19 +0000

Hmmm, did NTT As2914 and Arelion AS1299 depeer in EU? Seemingly everything in the EU between them right now goes via the East Coast USA...

(see examples of London-London going via the US, but seemingly this is also happens FRA-FRA)

Unsure if this is a maintenance, since surely the whole of the EU would not go at once?

Maybe just a misconfig or interesting localpref? Surely that would not happen on both ends though...

NTT and Arelion looking glasses showing London to London going via the USA NTT and Arelion looking glasses showing London to London going via the USA

benjojo posted 21 Jan 2025 21:21 +0000

You know, some are saying that AI will one day get free will, but they have been overlooking ceph all this time!

The average ceph installation seems to have way too much free will and has no problem in automatically doing things that either block or generate a lot of IOPS at seemingly the worst possible time

benjojo reposted 20 Jan 2025 22:21 +0000
original: luna@pony.social

closing all my jira tickets as “by design, won’t fix” because the purpose of a system is what it does

benjojo posted 20 Jan 2025 17:05 +0000

The debian java/JRE/JDK situation seems insane.

bookworm (stable) is shipping JRE 17, lots of applications require at least 21, Trixie (next stable) is shipping JRE 21, the the current openJDK JRE version is 23

Most of the time if you search for the errors caused by out of date JRE's you get "just install Oracle JDK" with instructions, but as far as I can squint that comes with some licencing payment obligation. All of this feels like putting your head into a alligators mouth!

(Do not reply "use nix/arch")

benjojo posted 20 Jan 2025 12:52 +0000

Took apart a DWDM XFP optic left over from the 140km TOSLINK stuff, A lovely person sent a load over that they no longer needed and they were part of my back up plan if more optics didn't work

Anyway it seems like they would not have worked anyway because the chip is a
GN2010EA that has CDR (my enemy)

The Receiver/Transmitter Optical Sub Assembly (ROSA/TOSA) may be useful for future fun though, Especially since the TOSA seems to have the DWDM Channel written on it, implying that it's statically tuned for that wavelength...

A XFP optic with a the lid taken off, inside are two laser modules and a chip with GN2010EA written on it, one module has "53" scribbled on it A XFP optic with a the lid taken off, inside are two laser modules and a chip with GN2010EA written on it, one module has "53" scribbled on it

benjojo posted 19 Jan 2025 17:05 +0000

Fascinating. I accidentally collided the chassis door with the motherboard on this machine I am working on, and dmesg complained about a unsolicited IRQ!

[  149.409381] irq 16: nobody cared (try booting with the "irqpoll" option)

I wonder what actually happened here on the electrical level!

benjojo posted 16 Jan 2025 12:31 +0000

Leave me alone leave me alone leave me alone leave me alone leave me alone leave me alone leave

A Android notification requesting that I reboot my phone for an upgrade the next notification underneath it is a Google Gemini notification saying that my phone just got a lot smarter with AI

benjojo posted 14 Jan 2025 20:48 +0000

This extortion spam email's attempt at evading spam detecting by using homoglyphs is hilarious, mostly the

"broωsing" -> "oωo"

but also the rather... lol language?

Incredible spam 10/10, not even upset it landed in my inbox

you were broωsing embarrassing videos, clicking unsafe links and visiting ẇebsites that no ordinary man ẇould νisit. I secretlẏ embedded malωare into an adult site, and ẏou unknowinglẏ wandered right into it. Just like a blind kitten, ẏou didn’t know the ԁanger that ẇas just near you.

benjojo posted 14 Jan 2025 17:39 +0000

The PDU, it screams, and honestly... Me too buddy

Two PDUs each with a seven segment display, one displays 04, the other displays AA

benjojo posted 10 Jan 2025 21:59 +0000

Is it too much to ask for a 2024 version of the HP Gen 8 Microserver? It honestly feels like HPE accidentally made a machine so good it cannibalised so much of their other markets that they vowed to never make a microserver that nice ever again

benjojo posted 10 Jan 2025 16:42 +0000

Another great NetLdn meetup last night! Including a talk about mitigating "acts of god" as a WISP (hint, wind makes your radios fly away, and water makes everything sad)

The next NetLdn is on Feb 13th and already has a full line up! If you are around say come say hi!

A pub setting, the projector has on it "The WISP Diary's" " Episode 2 - Mitigating acts of god" " Oli Stockman "

benjojo reposted 09 Jan 2025 15:49 +0000
original: igloo@tupek.org

@benjojo

We do not know why we are here. We do not know who built the underground. We do not know why everyone on the underground is as they are.

4f66fWbkn3MM6M4ZC5.jpg wM525N436yt1Dg3YL5.jpg 4w9Dm1Z1ftMd9xqGVt.jpg x3371cfcR9B3RgDN7D.jpg

benjojo posted 09 Jan 2025 15:18 +0000

Did another hidden London tour! This time Baker Street.

Love the post apocalyptic vibes the behind the scenes bits of TFL always have

Various photos of empty, people less, industrial settings "backrooms" type shots, with lots of cables and dim lighting, looks like a world people left behind Various photos of empty, people less, industrial settings "backrooms" type shots, with lots of cables and dim lighting, looks like a world people left behind Various photos of empty, people less, industrial settings "backrooms" type shots, with lots of cables and dim lighting, looks like a world people left behind Various photos of empty, people less, industrial settings "backrooms" type shots, with lots of cables and dim lighting, looks like a world people left behind

benjojo posted 07 Jan 2025 17:35 +0000

I don't miss many x/witter accounts, but I really do miss the daily posting of @defencecharts

How could you not love these incredibly easy to understand works of art

I'm very sorry but it just is not possible to alt text these slides because I have no idea what they mean I'm very sorry but it just is not possible to alt text these slides because I have no idea what they mean I'm very sorry but it just is not possible to alt text these slides because I have no idea what they mean I'm very sorry but it just is not possible to alt text these slides because I have no idea what they mean

benjojo posted 07 Jan 2025 17:10 +0000

Huh, first ever case of seeing a "verified" RCS message like this... from HMRC?!

What "verified by BT" actually means in this context is a bit of a mystery, but the whole thing seems a tad jank, this is the first non-spam RCS message I've gotten so far

A Google messages RCS message screenshot showing "HMRC Thanks for filing your tax return (etc)", but the contact logo is the HMRC logo, it has a verified tick on it, and the window in front says "Verified by BT, BT has verified the identity of this biz", the other screenshot shows a very detailed HMRC vcard info A Google messages RCS message screenshot showing "HMRC Thanks for filing your tax return (etc)", but the contact logo is the HMRC logo, it has a verified tick on it, and the window in front says "Verified by BT, BT has verified the identity of this biz", the other screenshot shows a very detailed HMRC vcard info

benjojo posted 06 Jan 2025 21:48 +0000

Visited a nuclear power plant today (Sizewell B)! Sadly no photos allowed, but a remarkably great tour given the average tour group was clearly schools or various non-ish technical groups, ours were all infra/power nerds and I was amazed how well they could answer all of the meaty questions!

Me wearing a EDF Vi-Hiz coat, and the other photo is a Sizewell welcome sign Me wearing a EDF Vi-Hiz coat, and the other photo is a Sizewell welcome sign

benjojo posted 04 Jan 2025 18:07 +0000

This may not look like it but this is what peak oven element looks like

A circular oven element, except one corner is not circular and has a small hole in it A circular oven element, except one corner is not circular and has a small hole in it

benjojo posted 03 Jan 2025 15:47 +0000

Happy new years to the 2026 CT logs that are now slowly populating with 2025 1 year duration X.509 certs!

Even bigger ups to the certs that issued bang on UTC new years!

A prometheus screenshot showing a spike of rates kicking in at Jan 1st and Jan 2nd

benjojo posted 02 Jan 2025 17:53 +0000

I love this prompt from the angle that it's such a low cost airline thing to do.

Surely it is not worth prompting for 3p riiiight??

Sorry, your flight prices have changed We're really sorry, but due to changes in inventory while you were booking, one or more of your flight prices have changed. Your basket total is now £188.64, an increase of £0.03. Changes are shown below. Adult fare changes Original flight price total £101.64 • New flight price total £101.67 Accept change and continue Select different flights >

benjojo posted 02 Jan 2025 17:34 +0000

Need a dedicated button on google flights for "actually London airports" that sets this

The google flights "from" location is set to LHR LGW and LCY

benjojo posted 02 Jan 2025 11:28 +0000

Does anybody know of any academic literature around the medium-term (10 hours a day for 5 days) exposure to smoke machines?

The best thing I can find is literature around accumulated exposure around vapes, and this isn't really a fair comparison as people typically don't vape via their noses

I'm mostly asking because it turns out that I get a very slow running nosebleed around these things, it's not really an issue but I know other friends where who get much bigger problems

(For what it's worth, I realise it's not just a #38c3 smoke machine thing, I've never managed to figure out what causes these very slow nose bleeds until just the last few days, but the last 10 years of these now make sense with this context)

benjojo posted 01 Jan 2025 21:51 +0000

pfft, welp, I was not expecting my laptop stickers to be that visible on the video! I guess the audience angle vs the c3VOC angle is quite different lol

A screenshot from my CCC talk, showing my laptop, a thinkpad, visible is a large CYBER tape going over the laptop, a shark biting a cable, a CIDR sticker in the style of the CYBER tape, CYBER but in blue, a age encryption sticker, a warning "infomation hazard" sticker, the thinkpad logo has been replaced with twinkpad, a US "SECRET" sticker, a network rave sticker in the logo of UK network rail, a recurse.com sticker, and a "NOT A FURRY" sticker