About OTC CatchUp
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 #140
Date: 15-07-2023
Duration: 3 hrs 36 mins
Topics Discussed
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Sejal Jain talked about her conversion from an intern to a full-time employee at Zomato and shared her experience working with PHP, Go, MySQL and DynamoDB.
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Viranchee L talked about his experience building security features using C, C++ and Python as an intern at Qualcomm.
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Harsh Kapadia talked about how Kartik Soneji improved the GitHub Actions workflow of the OTC CatchUp GitHub repository that sends reminder and joining Tweets and Telegram messages for OTC CatchUp sessions.
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Jaden Furtado talked about how his team qualified for the second round of a CTF CISS 2022.
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One of the problems they faced looked like the Shellshock vulnerability.
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Preet Parekh talked about an issue where an update query (using Painless) to around 10 million Elasticsearch documents was taking around eight minutes to reflect to the end user!
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Just inserting new documents and deleting the older documents is one potential solution, as Elasticsearch is able to handle that with much lesser latency.
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Wilfred Almeida talked about how some ISPs use the Point-to-Point Protocol over Ethernet (PPPoE) protocol to authenticate users.
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Harsh Kapadia talked about how Captive Portals are used to display WiFi login screens when a user logs into a WiFi network for the first time.
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Wilfred Almeida talked about his issues with transactions on Supabase.
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Wilfred Almeida asked whether anyone had used Proxmox, a Virtualization management software like VMware, as he was facing issues with SeaBIOS and UEFI.
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Wilfred Almeida shared HPKS: High Performance Kubernetes Scheduling for Dynamic Blockchain Workloads in Cloud Computing.
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Darshit Suratwala shared his KCD Mumbai 2023 talk Blockchain goes Kubernetes.
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Wilfred shared his KCD Mumbai 2023 talk How to Not-Mess-Up Production as well.
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Harsh Kapadia talked about how a lot of people expressed their disdain for the lack of empathy in a Tweet thread by Dukaan’s CEO marketing a product by boasting about laying off employees and for dismissing concerns for laid off employees in a very offhand way.
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Harsh Kapadia talked about his experimentation with Vim plugins. He started using vim-plug as his plugin manager and the EditorConfig and the vim-shfmt plugins.
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Harsh’s dotfiles: HarshKapadia2/dotfiles
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Harsh Kapadia talked about how the Baseboard Management Controller (BMC) of a server motherboard gets its own IP and has its own web interface to help configure the motherboard (turning power on or off, updating BIOS and board firmware, getting a GUI for the machine, etc.) and how he used
ipmitool
to re-gain lost access to the BMC by re-configuring a password for the defaultadmin
user. -
Harsh Kapadia talked about his Networking experiment at his internship at AMD, where he had to configure two servers and a Mellanox SN2100 Switch to be able to achieve a throughput of 100 Gbps over Ethernet.
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He talked about how it was a challenge to set up and configure the server and switches to be able to ping each other, as he needed to realise that
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Connecting to the switch to be able to configure it and enable SSH access to it, required a console cable, which is supposed to be a serial cable.
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The servers required the
MLNX_OFED
drivers` so that the Mellanox ConnectX-5 NIC could be configured.
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He was only able to achieve 20 Gbps when he used iperf3 to check his network connectivity for the first time.
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He then mentioned that he would write a blog on the BIOS (NPS, etc.), OS, iperf3 and CPU optimizations that he had to make to get the throughput to 60 Gbps.
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Preet Parekh shared A $15,000 Network Switch?? - 100GbE Networking.
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We talked a little about InfiniBand as well, which uses the concept of Remote Direct Memory Access (RDMA) to speed up Networking. It is an alternative to Ethernet.
Projects Showcased
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Siddharth Kaduskar showcased his attendance manager project that he built using Express.js and React.js. He is using NanoNets for OCR.
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Rishi Setpal shared his React.js projects.
Attendees
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Hiten Gerella
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Krishana Dave
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Meer Kukreja
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Ria Singh
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Rishi Setpal
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Sejal Jain
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Tarang Jasnani
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Yash Gurnani
Meet Screenshot
For all summaries, please visit catchup.ourtech.community/summary. |
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