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Dan Nanni

@dan-nanni

Linux, networking, and cybersecurity made simple. Visual eBooks that make hard concepts stick: https://study-notes.org

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Latest posts by Dan Nanni @dan-nanni

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Markdown is everywhere these daysβ€”README files, docs, notes, even changelogs. Glow lets you read those Markdown files right there in your terminal πŸ˜ŽπŸ‘‡

Find high-res pdf ebooks with all my technology related infographics at study-notes.org

#opensource #technology #productivity #coding #programming

07.03.2026 15:20 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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β€œSignals” provide a lightweight mechanism for the Linux kernel and other processes to asynchronously notify a running process about events such as faults, user interrupts, or system conditions πŸ˜ŽπŸ‘‡

Find pdf ebooks with all my #Linux related infographics at study-notes.org

#softwaredeveloper

06.03.2026 13:35 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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An SSH reverse tunnel is commonly used to expose a service on a machine behind NAT or a firewall to the outside network πŸ˜ŽπŸ‘‡

Find high-res pdf ebooks with all my Linux related infographics at study-notes.org

#linux #cybersecurity #infosec #ethicalhacker #sysadmin

05.03.2026 13:55 πŸ‘ 5 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0
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On Linux, every file has rules. Who can read, modify & execute it. Since Linux treats almost everything as a file, those three permission bits quietly control your entire system πŸ˜ŽπŸ‘‡

Find pdf ebooks with all my #Linux related infographics at study-notes.org

#cybersecurity #infosec #techtips

04.03.2026 13:18 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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OpenCode is an open-source AI coding agent that runs in your terminal, IDE, or desktop, letting you write, refactor, and manage code using 75+ different LLM providers πŸ˜ŽπŸ‘‡

Find pdf ebooks with all my #technology related infographics at study-notes.org

#copilot #ai #aitools #coding #programming

03.03.2026 22:49 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Here are different types of machine learning algorithms πŸ˜ŽπŸ‘‡

Find high-res pdf ebooks with all my technology related infographics at study-notes.org

#machinelearning #ai #aitools #deeplearning #datascience

03.03.2026 13:14 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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TUIOS is a slick terminal-based window manager that lets you juggle multiple terminal sessions with a clean, modern interfaceβ€”no desktop required πŸ˜ŽπŸ‘‡

Find high-res pdf ebooks with all my Linux related infographics at study-notes.org

#linux #productivity #softwareengineer #opensource #software

02.03.2026 14:53 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Here I am visualizing a benchmark result of n-body physics simulation done with different #programming languages πŸ˜ŽπŸ‘‡

See the full result:
programming-language-benchmarks.vercel.app/amp/problem/...

Find pdf ebooks with all my #technology related infographics at study-notes.org

#coding

28.02.2026 13:49 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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GNU/POSIX ps syntax is composable and script friendly, giving precise, non interactive control over process selection and formatting compared to BSD style’s more ad hoc, human oriented flags πŸ˜ŽπŸ‘‡

Find high-res pdf ebooks with all my #Linux related infographics at study-notes.org

27.02.2026 13:08 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Linux loves its acronyms. They are often clever, sometimes recursive, and occasionally ridiculous, mixing real technical meaning with inside jokes and wordplay πŸ˜ŽπŸ‘‡

Find high-res pdf ebooks with all my #Linux related infographics at study-notes.org

#opensource #softwareengineer #software

26.02.2026 14:01 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Sandboxing is about limiting what an app can see and do if something goes wrong. Here are sandboxing tools available across the kernel and user space on #Linux πŸ˜ŽπŸ‘‡

Find high-res pdf ebooks with all my #cybersecurity related infographics at study-notes.org

#infosec #pentest #ethicalhacker

24.02.2026 14:04 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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When you type a command in Bash, it follows a series of steps to look up the name and decide what to execute πŸ˜ŽπŸ‘‡

Find high-res pdf ebooks with all my Linux related infographics at study-notes.org

#linux #opensource #softwareengineer #sysadmin #software

23.02.2026 13:31 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Here are free password managers that work across multiple operating systems πŸ˜ŽπŸ‘‡

Find high-res pdf ebooks with all my cybersecurity related infographics at study-notes.org

#cybersecuritytips #informationsecurity #password #datasecurity #onlineprivacy

22.02.2026 14:18 πŸ‘ 0 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0
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What was your first Linux distro, and why did you pick it?

For me it was Fedora. I knew basically nothing about Linux at the time, but the logo just clicked 😁 It also felt more up to date and actively worked on, so I figured it was a good place to start.

What about you? πŸ™„

#linux #opensource

21.02.2026 15:27 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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UEFI Secure Boot ensures that only trusted, cryptographically signed firmware, bootloaders, and kernels are allowed to run πŸ˜ŽπŸ‘‡

Find high-res pdf ebooks with all my Linux related infographics at study-notes.org

#linux #cybersecurity #infosec #softwareengineer #software

20.02.2026 14:11 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Cloud bills getting out of control? Here are self-hosted alternatives to AWS if you are up for it πŸ˜ŽπŸ‘‡

Find high-res pdf ebooks with all my DevOps related infographics at study-notes.org

#devops #aws #cloudcomputing #cloudengineer #cloudservice

19.02.2026 14:07 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

That’s mostly phased out because cadmium is heavily restricted

19.02.2026 03:53 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Consumer batteries use different chemistries with clear tradeoffs. Here is a quick comparison of different battery types πŸ˜ŽπŸ‘‡

Find high-res pdf ebooks with all my technology related infographics at study-notes.org

#technology #laptop #battery #smartphone #drone

18.02.2026 13:18 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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The Bash Bunny is a covert USB attack platform built for automating penetration testing.

Here is a quick breakdown of what it can do and why it is so effective πŸ˜ŽπŸ‘‡

Find pdf ebooks with all my #infosec related infographics at study-notes.org

#cybersecurity #iot #iotsecurity #pentesting

17.02.2026 13:18 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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When you set up a Linux desktop, having the right set of essential applications makes everyday use more efficient and productive πŸ˜ŽπŸ‘‡

Any recommendations?

Find high-res pdf ebooks with all my #Linux related infographics at study-notes.org

#opensource #softwareengineer #productivity #software

16.02.2026 14:21 πŸ‘ 4 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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A DMZ network is a separated perimeter zone that exposes public-facing services to the internet while isolating the internal network from direct access πŸ˜ŽπŸ‘‡

Find pdf ebooks with all my #networking related infographics at study-notes.org

#computernetwork #tech #cybersecurity #networkengineer

15.02.2026 16:50 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Here are the key network performance metrics every network engineer should know πŸ˜ŽπŸ‘‡

Find high-res pdf ebooks with all my network related infographics at study-notes.org

#computernetwork #datacenter #networkengineer #routing #network

14.02.2026 13:25 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Here is how to read the specifications printed on the card label of your MicroSD card πŸ˜ŽπŸ‘‡

Find high-res pdf ebooks with all my technology related infographics at study-notes.org

#sdcard #microsd #iot #technology #computerhardware

13.02.2026 13:44 πŸ‘ 2 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Need to make changes to a #PDF instead of just viewing it? That is when a PDF editor comes in handy. Here are a list of #opensource pdf editor #software and their feature comparisons πŸ˜ŽπŸ‘‡

Find pdf ebooks with all my technology related infographics at study-notes.org

#linux #productivity

12.02.2026 14:11 πŸ‘ 5 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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A spine–leaf #network topology is a commonly used two-tier #datacenter architecture. It offers predictable latency, high bisection bandwidth, and efficient load balancing πŸ˜ŽπŸ‘‡

Find high-res pdf books with all my #networking related infographics at study-notes.org

#networkengineer #routing

09.02.2026 13:54 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Here are useful keyboard shortcuts for Google Sheets πŸ˜ŽπŸ‘‡

Find high-res pdf books with all my technology related infographics at study-notes.org

#technology #productivity #google #spreadsheet #software

08.02.2026 13:38 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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BFS and DFS are two major graph traversal algorithms used to systematically explore nodes or paths in structures such as mazes πŸ˜ŽπŸ‘‡

Find high-res pdf ebooks with all my technology related infographics from study-notes.org

#tech #technology #techjobs #computerscience #algorithm

07.02.2026 14:11 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Here are two different types of window managers available on Linux desktop πŸ˜ŽπŸ‘‡

Find high-res pdf ebooks with all my Linux related infographics at study-notes.org

#linux #softwareengineer #devops #software #softwaredeveloper

06.02.2026 13:16 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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HBM and GDDR are two distinct high-speed GPU memory technologies. They are powering everything from cutting-edge AI supercomputers to everyday gaming graphics πŸ˜ŽπŸ‘‡

Find high-res pdf ebooks with all my technology related infographics at study-notes.org

#ai #tech #technology #computer #gpu

05.02.2026 13:43 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Linux offers a wide range of compression tools, each differing in format support, threading capability, archiving features, and licensing πŸ˜ŽπŸ‘‡

Find high-res pdf ebooks with all my Linux related infographics at study-notes.org

#linux #sysadmin #software #softwareengineer #backup

04.02.2026 13:16 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0