KL ✌🏾 @KotheLewis

Cybersecurity Engineer | Open Source Contributor @Codecademy | Bug Hunter Kenya Joined April 2012

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KL ✌🏾 @KotheLewis

3 weeks ago

@abhi9u I have been seeing some cracked hackers talking about things like fuzzing, harnesses, and segfault. I was curious and yeah reading this is shedding light...did some OS course in uni but not this deep, wasn't my major.

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KL ✌🏾 @KotheLewis

3 weeks ago

@abhi9u Awesome work...got to the demand paging...will continue from there

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Abhinav Upadhyay @abhi9u

3 weeks ago

Before jumping into books like DDIA or Database Internals, it helps to understand the systems layer these designs are built on. A lot of the design of such data-intensive systems is based on virtual memory: page tables, page faults, mmap, the page cache, swapping, NUMA placement, TLBs, and the tradeoffs between what the OS wants and what the database wants. My latest article is a ~25,000-word mini-book on virtual memory. It starts from first principles and goes all the way down to advanced topics like NUMA placement and performance debugging with tools like perf and /proc. I also wrote it differently: as a dialogue between a user-space process and the kernel. Most treatments of virtual memory are dry and fact-heavy. I wanted this one to feel more like a story, while still being technically deep. Link below.

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KL ✌🏾 @KotheLewis

4 weeks ago

@IceSolst When you are an hunter and pass through that "impact" assessment, you understand more when you go blue for professionalism...like why is this report not a 9.8 but a 6

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KL ✌🏾 @KotheLewis

a month ago

@Akintola_steve @DarkSPID4 Frontend guys don't understand what clicking the button does

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KL ✌🏾 @KotheLewis

a month ago

@WelBeast Amka usikojoe kwa hizo bedsheets zako za saka

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KL ✌🏾 @KotheLewis

a month ago

@JonesBaraza 😄😄

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KL ✌🏾 @KotheLewis

2 months ago

@testoo____ Are you hungry to know ama ni njaa kidogo?

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KL ✌🏾 @KotheLewis

2 months ago

Support Man United

Sxnti @PeakSxnti

2 months ago

Where do we go from here?

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KL ✌🏾 @KotheLewis

2 months ago

😂😂😂😂😂 tough times been lasting decades

WelBeast @WelBeast

2 months ago

Tough times don’t last. Only tough people do.

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KL ✌🏾 @KotheLewis

2 months ago

@NeoBarcaVision @HKane Congratulations Kane ...Well Deserved 👏🖐️👏

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KL ✌🏾 @KotheLewis

2 months ago

@kanavtwt

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KL ✌🏾 @KotheLewis

2 months ago

I am very happy for @HKane being prolific and getting the trophy. You are in the right place, get the UEFA next

FC Bayern @FCBayernEN

2 months ago

𝗪𝗘 𝗔𝗥𝗘 𝗧𝗛𝗘 𝗕𝗨𝗡𝗗𝗘𝗦𝗟𝗜𝗚𝗔 𝗖𝗛𝗔𝗠𝗣𝗜𝗢𝗡𝗦 🏆

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FC Bayern @FCBayernEN

2 months ago

𝗪𝗘 𝗔𝗥𝗘 𝗧𝗛𝗘 𝗕𝗨𝗡𝗗𝗘𝗦𝗟𝗜𝗚𝗔 𝗖𝗛𝗔𝗠𝗣𝗜𝗢𝗡𝗦 🏆

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KL ✌🏾 @KotheLewis

2 months ago

@gregorytechKE Hehe just use thin pipes

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KL ✌🏾 @KotheLewis

3 months ago

@njcve_ Every security 'influencer' I see has been promoting bug bounty nonstop...+AI

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KL ✌🏾 @KotheLewis

3 months ago

@h4x0r_dz One day I woke up, boiled water, and I didn't hear any more 3am cock-a-doodle-doo....now it is about being hungry or going 5kms and back. Unless you grew up on a farm, it is not a resort destination. For those that did, computers are much much better.