![OpenFest Bulgaria](/img/default-banner.jpg)
- 375
- 261 625
OpenFest Bulgaria
Bulgaria
Приєднався 13 січ 2016
Lighting talk - Bulgaria PHP Community – Yavor Mihaylov
#OpenFest 2023 I Share Therefore I Am
Website: openfest.org/
Facebook: OpenFestBulgaria
Linkedin: linkedin.com/company/openfest-bulgaria/
(X) Twitter: OpenFestBG
Instagram: OpenFestBulgaria
Mastodon: mastodon.social/@openfest
Website: openfest.org/
Facebook: OpenFestBulgaria
Linkedin: linkedin.com/company/openfest-bulgaria/
(X) Twitter: OpenFestBG
Instagram: OpenFestBulgaria
Mastodon: mastodon.social/@openfest
Переглядів: 64
Відео
Lighting talk - Cyber Security Challenge Bulgaria - Alexander Nikolov
Переглядів 696 місяців тому
#OpenFest 2023 I Share Therefore I Am Website: openfest.org/ Facebook: OpenFestBulgaria Linkedin: linkedin.com/company/openfest-bulgaria/ (X) Twitter: OpenFestBG Instagram: OpenFestBulgaria Mastodon: mastodon.social/@openfest
Lighting talk - Pyramid of knowledge vs tower of knowledge paradox - Dimo Dimov
Переглядів 606 місяців тому
#OpenFest 2023 I Share Therefore I Am Website: openfest.org/ Facebook: OpenFestBulgaria Linkedin: linkedin.com/company/openfest-bulgaria/ (X) Twitter: OpenFestBG Instagram: OpenFestBulgaria Mastodon: mastodon.social/@openfest
Lighting talk - Hilbert Hotel Sofia - Николай Михайлов
Переглядів 246 місяців тому
#OpenFest 2023 I Share Therefore I Am Website: openfest.org/ Facebook: OpenFestBulgaria Linkedin: linkedin.com/company/openfest-bulgaria/ (X) Twitter: OpenFestBG Instagram: OpenFestBulgaria Mastodon: mastodon.social/@openfest
SRE, DevOps и традиционно IT - Боян Кроснов
Переглядів 3876 місяців тому
В тази лекция ще се запознаем с модерното и традиционното IT. И ще обясним защо и как искаме да модернизираме IT-то. Ще опишем модерния IT стек. Ще дадем препоръки в кои случаи кое е за предпочитане. #OpenFest 2023 I Share Therefore I Am Website: openfest.org/ Facebook: OpenFestBulgaria Linkedin: linkedin.com/company/openfest-bulgaria/ (X) Twitter: OpenFestBG Instagram:...
A reflection on the state of open source in 2023 - Явор Папазов
Переглядів 466 місяців тому
Open source has its origin rooted deeply in communities of like-minded idealists, racing against the commercial alternatives to remain viable. Fast-forward 40 years, and the situation couldn't be more different: Nowadays, open source consists either of corporate-approved projects that mostly serve some vague strategic purpose, and will be eagerly abandoned after the quarterly budget review, or ...
Антикорупционен софтуер - Божидар Божанов
Переглядів 1096 місяців тому
В обществения сектор (или иначе казано - държавата) се създава много софтуер, от който зависят милиони левове и са концентрирани големи интереси. Наивно е да се смята, че просто защото нещо е електронно, то корупцията е елиминирана. Напротив, ако не бъде направен както трябва, софтуерът може включително да създаде нов вид, "електронна" корупция. Именно затова трябва да приложим няколко не толко...
nginx performance monitoringx - Иван Иванов
Переглядів 856 місяців тому
Лекцията разглежда nginx reverse proxy upstream мониторинг: следене на бавни заявки, разследване на забавяния между nginx и upstream сървъра, конфигуриране на open-source модула nginx-module-vts за детайлен мониторинг на nginx reverse proxy. #OpenFest 2023 I Share Therefore I Am Website: openfest.org/ Facebook: OpenFestBulgaria Linkedin: linkedin.com/company/openfest-bulgaria/ (X) ...
ArcticDB an open source, high performance time series database - Vasil Pashov
Переглядів 5766 місяців тому
Discover the journey of ArcticDB, our open-source, high-performance time series database, which has evolved from an internal tool to a powerful open-source Python and а C project. Explore how ArcticDB seamlessly integrates with the Python Data Science ecosystem, enabling efficient manipulation of petabytes of Pandas dataframes. Additionally, we will showcase our other notable projects, includin...
Lighting talk - Ново 20 от KiwiTCMS - Алекс Тодоров и Ади Тодорова
Переглядів 206 місяців тому
#OpenFest 2023 I Share Therefore I Am Website: openfest.org/ Facebook: OpenFestBulgaria Linkedin: linkedin.com/company/openfest-bulgaria/ (X) Twitter: OpenFestBG Instagram: OpenFestBulgaria Mastodon: mastodon.social/@openfest
PGLogical replication, automation and monitoring with Prometheus - Владимир Димитров
Переглядів 396 місяців тому
Разглеждане на Postgres модула pglogical. Функционалността, която предлага, и разликата със стандартната streaming репликация. Автоматизиране на инсталацията, посредством python. Имплементация на мониторинг с Prometheus и Grafana. #OpenFest 2023 I Share Therefore I Am Website: openfest.org/ Facebook: OpenFestBulgaria Linkedin: linkedin.com/company/openfest-bulgaria/ (X) Twitter: tw...
Българските данни в Уикиданни - Никола Тулечки
Переглядів 456 місяців тому
Уикиданни е отворената мрежа от знание, захранваща Уикипедия със структурирани данни. След няколко години фокусирани усилия от обществото, данните свързани с България са достигнали относително високо ниво на качество. Лекцията първо ще направи обзор на Wiki екосистемата, свързана с данни. След това ще дадем примери с отделните типове обекти, които са добре представени в мрежата от знание и какв...
From Stone Walls to Firewalls eBPF and XDP in the Age of DDoS - Димитър Каналиев
Переглядів 676 місяців тому
Explore the evolution of defence mechanisms from medieval stone walls to modern firewalls. Discover how eBPF and XDP serve as the new bulwarks in the constant battle against DDoS attacks. #OpenFest 2023 I Share Therefore I Am Website: openfest.org/ Facebook: OpenFestBulgaria Linkedin: linkedin.com/company/openfest-bulgaria/ (X) Twitter: OpenFestBG Instagram: instagram.c...
Lighting talk - Представяне на Flipper zero - Vencislav Atanasov
Переглядів 936 місяців тому
#OpenFest 2023 I Share Therefore I Am Website: openfest.org/ Facebook: OpenFestBulgaria Linkedin: linkedin.com/company/openfest-bulgaria/ (X) Twitter: OpenFestBG Instagram: OpenFestBulgaria Mastodon: mastodon.social/@openfest
Multi cloud cluster monitoring with Kubernetes and Thanos - Mihail Mihaylov
Переглядів 396 місяців тому
Automating the process of spinning up databases on private/shared Kubernetes clusters is challenging, to say the least. Coping with the issues in those multi-cloud environments in an abstract yet reliable way is equally important. If a tree falls in a forest and no one is around to hear it, does it make a sound? The SRE team at MariaDB had this challenge. Over 400 (and counting) Kubernetes clus...
Why We Run FreeBSD current at Netflix - Drew Gallatin
Переглядів 12 тис.6 місяців тому
Why We Run FreeBSD current at Netflix - Drew Gallatin
Lighting talk - Подкрепи класната стая png - Невен Боянов
Переглядів 156 місяців тому
Lighting talk - Подкрепи класната стая png - Невен Боянов
Where did all the fun go - Bogomil Shopov
Переглядів 876 місяців тому
Where did all the fun go - Bogomil Shopov
National Security Agency NSA Kubernetes Hardening - Валентин Христев
Переглядів 2366 місяців тому
National Security Agency NSA Kubernetes Hardening - Валентин Христев
Български Визуален Архив - Тихомир Стоянов
Переглядів 346 місяців тому
Български Визуален Архив - Тихомир Стоянов
То Или Не То: Изкуствен Интелект - Вдъхновение или Заплаха? - Яна Карадимова и Венцислав Вълев
Переглядів 616 місяців тому
То Или Не То: Изкуствен Интелект - Вдъхновение или Заплаха? - Яна Карадимова и Венцислав Вълев
Подкрепи.БГ - от отворен код към отворено управление - Ивайло Иванов и Иван Гойчев
Переглядів 1346 місяців тому
Подкрепи.БГ - от отворен код към отворено управление - Ивайло Иванов и Иван Гойчев
Водене, ръководене и отглеждане на софтуерни екипи - Радослав Георгиев
Переглядів 366 місяців тому
Водене, ръководене и отглеждане на софтуерни екипи - Радослав Георгиев
Microfiche digitisation at the Internet Archive - Merlijn Wajer
Переглядів 176 місяців тому
Microfiche digitisation at the Internet Archive - Merlijn Wajer
Информационна сигурност чрез Свободни технологии - Адриан Илиев
Переглядів 936 місяців тому
Информационна сигурност чрез Свободни технологии - Адриан Илиев
Open Source Machine Learning - Ivo Emanuilov
Переглядів 566 місяців тому
Open Source Machine Learning - Ivo Emanuilov
Terraform или как да подредиш хаоса - Валентин Черноземски
Переглядів 1146 місяців тому
Terraform или как да подредиш хаоса - Валентин Черноземски
Скулптури от данни - Антони Райжеков
Переглядів 1696 місяців тому
Скулптури от данни - Антони Райжеков
I have a plan to do this for audio subsystem. There is simply less knowledge base about audio in Linux
great talk, but the amount of cpu used for all kernel "paranoia" calls, makes me think we need a more modern slim Linux to save energy and overall reduce all that complexity.. virtual file system is nice but camon "hello world" prog just wants move a buffer of bytes to another place
I’ve seen Kase’s talk on making C less dangerous in the kernel.
Никога не взимайте съвети от 1. жени 2. дебели хора 3. каквото и да е което съдържа думата психология 4. каквото и да е което ви ограничава
Doesn't tracking current present a security risk?
Amazing talk.
Is it possible to watch Netflix content at 1080p using FreeBSD?
Sure, why wouldn't it be possible?
@@mzar8092 mine gets output at 720p, but on my Windows laptop it does not get lowered to 720p.
@@mzar8092Please read relevant customer support page of Netflix. They support Linux “up to 720p” and does not mention FreeBSD at all.
only if your hardware is supported by the distro itself. Otherwise lots of choppiness, dropped frames and higher than expected CPU usage.
These people are called real programmers. Nowadays, everyone want minimalist design on their work desk for productivity and stuff.. what a shame.. They have videos not less than 4K resolution with their face on thumbnails.. They just pretend to know everything and their linkedIn profile will give sadness and heartbreak for freshers because they know everything and did everything.. These guys are real programmers whose desk is just messy as their codes.. Just 1 external monitors with bunch of files on their desktop. They have food, beers everything on their desk, like messy makes them more creative and productive..
What fascinates me as an example of how the group approaches their job is Netflix's willingness to let disks fail as opposed to investing in RAID. Focus on the customers' needs, not on sexy (expensive) technology--supports a very successful company. Lots of learning to do here.
Qshuuuuuuuu
Great work! Thanks!
I love FreeBSD so much, and I stuck with Linux on my home server because of a single piece of software which only runs in docker.
I had that too, but for that I Just did a little bhyve vm with Linux and Docker, and that solved my problems with missing Docker.
what about linuxinator and podman? maybe that could work
very good, thank you for sharing this presentation.
Nice talk.
FreeBSD 🥰🥰🥰
great video, but doesn't really explain why they choose freebsd and not linux
he presented 04:00 UFS and ZFS file systems, in Linux can't find that Filesystems. and i think they are using for BSD license.
yes it seems like they chose FreeBSD partially due to politics, but I suspect it was also partly because FreeBSD is just different from mainstream
Pretty amazing to think that almost all that runs on Netflix' servers is FreeBSD, Nginx and Bird.
with 10 people!
Thanks for the detailed presentation. Compelling reasons to track current. Will need to look into the size of ARC performance hit with ZFS.
This is why I fucking love the internet
Interesting talk, thanks.
Едно евро звучи добре, но 500 звучат много по-добре! 🙂
dobre e, stava za backrgound noise
Is this the guy that got roasted by Linus in the mailing list?
yeah
тоя дядо що е такъв хейтър :D
Great presentation on this topic! I'm knee deep in OCR tools, techniques, ways to optimize, etc. Amazing work here!
🎯 Key Takeaways for quick navigation: 00:12 🤔 *Einführung in das Thema soziale Bot-Netzwerke und ihre mögliche Auswirkung auf soziale Medien und Medienberichterstattung.* - Diskussion über den Einfluss von sozialen Bot-Netzwerken auf soziale Medien und deren Berichterstattung. - Erwähnung von Ereignissen wie Wahlen und Brexit, um die möglichen Auswirkungen von Bots zu unterstreichen. 01:38 📊 *Michael Kreils Hintergrund als Datenwissenschaftler und Datenjournalist.* - Vorstellung von Michael Kreils Projekten und seiner Rolle als Datenjournalist. - Erwähnung seiner Interessen an großen Datensätzen und deren Auswirkungen auf die Gesellschaft. 02:38 🤖 *Die Faszination für die Auswirkungen sozialer Bots auf die öffentliche Meinung und Wahlen.* - Interesse an der Analyse großer Datenmengen und wissenschaftlicher Arbeiten im Zusammenhang mit sozialen Bots. - Einführung in die Funktionsweise der Twitter-API und die Bedeutung der Datensammlung für die Forschung. 04:44 📈 *Aufbau einer Infrastruktur zur Datensammlung von Twitter.* - Beschreibung der eigenen Infrastruktur für die Datensammlung. - Erläuterung, wie durch die gesammelten Daten soziale Netzwerke und deren Untergruppen analysiert werden können. 06:09 📰 *Medienberichterstattung über soziale Bots und deren angebliche Auswirkungen auf Wahlen.* - Kritische Betrachtung der Berichterstattung in den Medien über den Einfluss sozialer Bots auf politische Ereignisse. - Analyse verschiedener wissenschaftlicher Arbeiten und der ihnen zugrunde liegenden Methoden. 08:00 🧐 *Zweifel an der wissenschaftlichen Validität der Forschung über soziale Bots.* - Kritik an den Methoden und Definitionen, die in der Forschung über soziale Bots verwendet werden. - Hinterfragen der wissenschaftlichen Strenge und der Reproduzierbarkeit von Studienergebnissen. 10:08 📉 *Analyse der Definition und Erkennung von sozialen Bots.* - Untersuchung der Kriterien zur Bestimmung von sozialen Bots. - Darstellung, wie gängige Definitionen auch normale Benutzer und Medienkonten als Bots einstufen könnten. 13:06 🤔 *Untersuchung und Kritik spezifischer Forschungsgruppen und ihrer Methoden.* - Analyse der Forschungsarbeiten und Methoden von Gruppen wie der Oxford University und der University of Southern California. - Hervorhebung von Unzulänglichkeiten und Fehlern in ihren Forschungsansätzen. 17:06 🔍 *Überprüfung der Genauigkeit von Bot-Erkennungstools.* - Bewertung der Zuverlässigkeit von Tools zur Erkennung von sozialen Bots. - Demonstration der hohen Fehlerquoten bei der Klassifizierung von echten Nutzern und Bots. 22:05 🚫 *Kritik an der Verwendung von unzuverlässigen Methoden zur Erkennung von sozialen Bots in wissenschaftlichen Studien.* - Analyse der unzuverlässigen Methoden, die in der Forschung verwendet werden. - Betonung der Notwendigkeit von Transparenz und Überprüfbarkeit in der wissenschaftlichen Forschung. 26:10 📚 *Schlussfolgerung: Soziale Bot-Forschung ist problematisch und unzuverlässig.* - Zusammenfassung der Probleme und Fehler in der aktuellen Forschung zu sozialen Bots. - Aufruf zu einer gründlicheren und transparenteren wissenschaftlichen Überprüfung. 29:57 🌐 *Forderungen zur Verbesserung der Forschung und Politik im Bereich sozialer Bots.* - Appell an Forscher, ihre Methoden und Daten offenzulegen. - Warnung vor unbedachten politischen Maßnahmen basierend auf unzuverlässiger Forschung. 31:19 🎤 *Abschluss und Einladung zur weiteren Diskussion und Forschung.* - Zusammenfassung und Dank für die Präsentation. - Einladung an das Publikum zur weiteren Diskussion und Austausch über das Thema.
The fact, that 7 years and a few months after this post was 'streamed' (if I describe it in the right words) just 2,076 people viewed this fascinating speech from a guy who miraculously vanished from the face of the planet, shows, that the problem is still not acknowledged. Nothing to get cheerful about . .
trace-cmd has problems compiling. It's looking for tracefs.h and trace-events.h files in the wrong location.
Dang! I am 5 years late to this! What an amazing talk about tracing the system calls and how it really works under the hood. Amazing stuff!
Thank you for the talk, Виктор. While I already knew everything you talked about in the first half, the second one gave me much insight into the internals of Nim, especially the part about C/C++ interop. Also want to aknowledge that you're great speaker - 50 minutes just flew by =).
test, test
14.:48 Arjan predicts his own death i guees...
Много готин. Винаги има един емиционален дядо накрая :D
Although clearly an experienced and talented core kernel developer, this talk is mostly self-congratulatory about being "right" about something, aimed to boost his own ego for that reason. The technical parts are rushed, convoluted and difficult to understand even for programmers, and not explained well. He is not giving the talk in the spirit of furthering learning, he is giving the talk to further his own ego while attacking Linus Torvalds for being "wrong" once. There is no right and wrong, only shades of grey. You would not see Linus first taking a selfie in front of a room of people while congratulating himself about his work being all over the Kernel. I would not enjoy working with him despite his skills. His is quite childish.
I don't mind your critique, I just flew in from Lyon and had only 2 hours of sleep before giving this talk. I wasn't focused and gave a much better version of it at an Open Source Summit, but that wasn't recorded. I had a hard time focusing during the talk and was quite disappointed in my performance by the end of it, and was really just trying to get through it. My cracks at Linus was more for humor. If you took it as ego, I'm fine with that 😉
This is a much better talk, where I was actually awake. ua-cam.com/video/JRyrhsx-L5Y/v-deo.html
Amazing talk
Европа това е Светлин!
Thumbs down do to the title of the video. Will block this user.This is a terrible title and clickbait good info on security, but the title is clickbait the video should be removed or re named
Dude it is the title of the talk. geez man did you expect linus to fight with him or something.
You are awesome... Thank you for the clear explanation and hints.
Wow 🙂
🔥🔥🔥💜Content. Don't miss out > 'Promosm' .
I want to have great respect for this guy. But rather than actually writing his own real time OS with a team of his own people. He is instead patching shyt linux.
This is great! you guys are great... i have the nokia N900 and i love and use it to this day... I can't wait for you guys to hopefully be the dominant 3rd OS for phones.
You are GREAT! I have had the nokia n900 and that phone has been the most beautiful and funny phone that i have had in my life. I trust in opensource and i love this project. I have a Jolla Phone (Sailfish OS device ) and the last month i have flashed maemo leste into sd card of my old Motorola Droid 4. I was waiting this update for using the call feature. Great project for a better world! 🙏
ОК Валка, ОК! Всичко ясно! :)
Много добро представяне на лекторът, един от най-добрите! Браво Валентин за работата и всеотдайността към лекцията и технологията!! 👏
Много ти благодаря
How is the performance of PREEMPT_RT compared to Xenomai?
Love it!!! Thanks for Sharing
Love it!!!!!!!!!
👍👍
"You don't need to know that much, only a little bit about programming"; proceeds to talk about complex hardware security architecture and it's flaws that can lead to complex side channel attacks on the cache and shows x86 assembly (assembly being the hardests programming language to read in a short amount of time). Lol. I learned this shit in my graduate computer science systems classes. I know we see it as simple, but other people see it for the black magic it is.