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Ryan Castellucci (they/them) :nonbinary_flag:

ryanc@infosec.exchange

<p>Hacker. Cryptography geek. Bureaucramancer. Ex-sysadmin. Nonbinary. Expat (US⮕UK).</p><p>By day I&#39;m a Principal Security Engineer at a megacorp, by night I&#39;m an agent of chaos. I post about technology and queer issues, while attempting to be funny along the way.</p><p>My continuing mission:<br />To explore strange new platforms.<br />To seek out new bugs and new software.<br />To boldly shitpost where no one has shitposted before!</p><p>I&#39;m suing the UK for more gender, please help with my legal bills: <a href="https://enby.org.uk" target="_blank" rel="nofollow noopener" translate="no"><span class="invisible">https://</span><span class="">enby.org.uk</span><span class="invisible"></span></a></p><p><a href="https://justmytoots.com/@ryanc@infosec.exchange" target="_blank" rel=

Posts

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    We interrupt your regularly scheduled tooting to bring you a message related to my employer, which I am not speaking on behalf of: My team is hiring a security engineer in London. It is in person. Please DM if you&#39;d like to talk about the role and perhaps be referred. (please look me up on LinkedIn if you want to know where I work, but it&#39;s a megacorp you&#39;re familiar with)

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    Why the fuck is Twitter trying to get me to sign up for a bank account with them?

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    resets the &quot;days since Ryan has found a compiler bug&quot; sign to &quot;0&quot;

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    Is there a registry for custom emoji in the unicode private use space like there is for conscripts?

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    Stuff for sale, boosts welcome, I can&#39;t be arsed to ship so exchange would need to take place at/near Liverpool Street station: Ubiquiti US-16-XG (early hardware revision) with rack ears, functional, £250 - 8x SFP+ ports, 4x 10GBASE-T ports. Netgear S3300-28X with rack ears, functional, modded with quieter fans, £80 - 24x 1000BASE-T ports, 2x SFP+ ports, 2x 10GBASE-T ports. #homelab

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    How to pick a WiFi said, opsec edition: https://wigle.net/stats#ssidstats

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    Chat, I have ordered a pumpkin spice beverage, is this a known side effect of estrogen?

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    Previously, I built something that detected LibreJS, bypassed its &quot;trivial JavaScript only&quot; gate for code without a free license, and played the free software song.

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    I&#39;m considering getting an LTO-8 setup for backup. My home fileserver has about 40-50TB in it, and even with a &quot;never restore&quot; assumption the break even time vs &quot;store everything in glacier deep archive&quot; is pretty reasonable. Anyone gone this route and have opinions? #linux #homelab

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    @tqbf@infosec.exchange I&#39;m not sure if you read your mentions here, but if you listed 2010 as a copyright year on your website as a way to troll people with extreme pattern matching brain you did a fantastic job

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    I&#39;m 99% sure this is a real email that is really from Microsoft.

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    OH: The existence of the common wall lizard implies the existence of the common wextra lizard and the common pedantic lizard.

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    What DNS caching stub resolver is the least tire-fire-esque?

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    From HN: my threat model doesn&#39;t really include competent .us.gov actors.

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    On the one hand, props to Kovid Goyal for fixing this quickly, on the other hand I&#39;m a bit salty that he considers it not a security issue to be able to probe for file/directory existence and get back file sizes. I included a PoC that lists the loaded kernel modules in my report. https://github.com/kovidgoyal/kitty/commit/87ab3e98f4d399337777e4329960d7cd09101e99

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    Enumerate your loaded kernel modules with shell escape sequences (affects kitty): https://bugs.debian.org/cgi-bin/bugreport.cgi?att=1;bug=1147733;filename=kitty_probe.py;msg=5

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    This software is a work of fiction. Variable names, character codes, classes, and comments are products of the author&#39;s imagination or used ironically. Any resemblance to any actual code, interfaces, or programs, maintained or not, is entirely coincidental.

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    I should have a party at my lair. https://ioc.exchange/@azonenberg/117272952327756597

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    Reading: Project Hail Mary. No spoilers please.

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    STOP DOING SWAP PARTITIONS HARD DRIVES WERE NOT SUPPOSED TO ACT LIKE RAM YEARS OF LINUX SYSADMINNING yet NO REAL-WORLD USE FOUND for going beyond CLOSING A FEW TABS Wanted to avoid the OOM killer anyway for a laugh? We had a tool for that: It was called ZRAM &quot;Yes please give me a dedicated 64GB logical volume of SWAP. Please give me unresizable block devices trapped at the end of my disk.&quot; - STATEMENTS DREAMED UP BY THE UTTERLY DERANGED LOOK at what Neckbeards have been demanding...

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    Radxa says ROCK 5 ITX board I returned can&#39;t be repaired, and will be scrapped. They&#39;re refunding me, but I was counting on having two of them. Anyone have a ROCK 5 ITX or ROCK 5 ITX+ they&#39;d be willing to sell me for non-scalper prices? Would also be happy to buy an Orion O6. #embedded #embeddedsystems #linux #homelab

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    So, I have run the numbers, and a PoE toaster running Linux is actually very feasible, and could be built for about £350. It would need batteries, but at that price point it could have enough to make eight slices of toast. cc @kajer@infosec.exchange

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    I got a second Pinecil V2, and now I can hold them like chopsticks to remove surface mount passives.

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    Partner: I that a... Partner: reaches into my pocket Me: ...IEC C5/C14 cable? Yes.

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    Looks like the defective Radxa ROCK 5 ITX board I sent back to China a month ago is finally being delivered to the manufacturer today.

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    Who is the joker who decided to return HTTP 418 (I&#39;m a teapot) for attempts to buy tickets from Ryanair?

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    Several hours of troubleshooting after work to discover that I was trying to run a board that expects to have 5V on 3.3V, just so it can run it through a 3.3V LDO regulator.

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    Wrong answers only, what does dd(1) stand for?

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    AHHHH! My thunderbolt dock is actually fine, my desk&#39;s 12V power supply simply got unplugged.

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    Vendor: The current hardware interface does not support fan tachometer readback, so fan speed reporting is not available. Me: makes it work anyway Me: Skill issue!