About OTC CatchUp
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OTC CatchUps are weekly informal sessions involving project showcases and technical discussions. They are held every Saturday from 10:30 PM IST. Join in!. For all summaries, please visit catchup.ourtech.community/summary. |
OTC CatchUp #306
Authors: Ayush More · Claude Opus 5.5
Date: 19-09-2026
Duration: 3 hrs 58 mins
Topics Discussed
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Urmil Saini shared that he is studying networking for cybersecurity and volunteered at a medical themed hackathon where teams combined hardware and software.
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Alpesh Bhagwatkar talked about the vulnerabilities he has been reporting, including IDORs that came back after the vendor shipped an update.
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Kartik Soneji explained that JavaScript’s
split()adds the text matched by a capturing group to the result array, while a non-capturing group(?:…)does not.-
He used it to normalise hand typed names in old FD records, where the separator was
&,andor a comma.
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Alpesh shared how to start with reverse engineering: reverse a hello world in C or C++, learn how values are stored, add complexity, and follow and take notes from people who do it.
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Urmil asked about learning paths on TryHackMe.
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Alpesh recommended the SOC Level 1 and Junior Penetration Tester paths, said to skip detailed notes for now, and pointed to Hack The Box for more depth.
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Alpesh explained why Windows has a larger attack surface than Linux, with attacks like pass the hash and Active Directory at the core of most organisations.
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Darshan Rander talked about a slow service at work that turned out to be a database problem, not a .NET one.
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A load test with a day of real queries showed a 40 vCPU database handling only around 180 requests per second, because of
SELECT *queries filtered in the app and extra round trips that could have been one query.
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Darshan shared an interview question on what happens when a Redis cache goes down. He suggested an in memory cache, but the expected answer was Redis replicas.
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Darshan and Kartik discussed building consent tools for the Digital Personal Data Protection (DPDP) Act, and whether it will be enforced.
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Darshan is building a small CRM for a friend to track FD maturities, loan EMIs and insurance across clients, generated with AI from an ER diagram he drew.
Meet Screenshot
Oops, we forgot to take a screenshot this time
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For all summaries, please visit catchup.ourtech.community/summary. |
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