2026-10-13T13:27:11Z https://njump.me Learn Linux with Dan https://njump.me/npub10cfw6ljgj8nxnacjyq5axdprxe2su4hzsr22hurdh3f5jas0v4csea0k2t https://files.mastodon.social/accounts/avatars/110/313/914/144/289/307/original/9a76cbd2c7bde7b5.png https://files.mastodon.social/accounts/avatars/110/313/914/144/289/307/original/9a76cbd2c7bde7b5.png https://njump.me/nevent1qqs8ja4xuxgpllsly563nyfan2zunyk5rp737trxau25lddhql4csdqzyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhzetwnfy Linux provides special permissions like SUID, SGID, and the Sticky Bit that go beyond basic read, write, and execute permissions, modifying execution behavior and controlling file deletion in shared directories 😎👇<br/><br/>Find high-res pdf ebooks with all my Linux related infographics at <a href="https://study-notes.org">https://study-notes.org</a><br/><br/>#linux #cybersecurity #infosec #informationsecurity #sysadmin<br/><br/> <img src="https://files.mastodon.social/media_attachments/files/116/199/450/190/116/310/original/bf67b4913eb72c7c.png"> 2026-03-09T13:28:36Z https://njump.me/nevent1qqsw89h0l8p0fqhqxh742n8cuwy5k9x8c63n7h3l0awczn2wyrc275gzyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhztzswew Here is a curated look at popular #opensource #pdf readers and viewing engines, from full applications to lightweight renderers, ranked by the number of #github stars received 😎👇<br/><br/>Find a high-res pdf book with all my #linux related infographics from <a href="https://study-notes.org">https://study-notes.org</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/115/684/358/925/626/954/original/d69135c101540882.png"> 2025-12-08T14:14:41Z https://njump.me/nevent1qqsfqd23jw0te455uz3py7lz5cxjve65s6pc4qftmzg3e3pq3qndfjgzyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhzw924pj My underrated Linux pick is the lsof command. It tells you exactly which files are open and which processes are using them. Because Linux treats everything as a file, this tiny command ends up being insanely powerful and useful in everyday troubleshooting.<br/><br/>Here are useful lsof command examples 😎👇 #cybersecurity #infosec #sysadmin<br/><br/>Find high-res pdf books with all my #linux related infographics at <a href="https://study-notes.org">https://study-notes.org</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/115/639/128/244/861/411/original/907908416add8211.png"> 2025-11-30T14:31:54Z https://njump.me/nevent1qqswp9f45qvvy95452xxqrvsxypmekc93c7qc09g5hecd69xgdpss2czyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhzn0un8z Are you trying to figure out which OS is good for you? For those clueless, here is an arbitrarily biased flow chart that can guide you 😎👇 #software #technology<br/><br/>Find high-res pdf books with all my #linux and #devops related infographics from <a href="https://study-notes.org">https://study-notes.org</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/115/508/426/013/399/438/original/7df96ec098c3275f.png"> 2025-11-07T12:32:16Z https://njump.me/nevent1qqswpe4kukjfrde0l0jjpv8mnmk7yrldzfu9r5j6zfk8nusk7fd080qzyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhzslzcj3 Adobe’s suite of creative tools covers everything from web design and logo creation to video and PDF editing, but you don’t have to stick with proprietary options.<br/><br/>Here are some #opensource alternatives to #adobe #software you can try instead 😎👇<br/><br/>Find high-res pdf books with all my #linux related infographics from <a href="https://study-notes.org">https://study-notes.org</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/115/417/827/925/396/515/original/97b7e48b6b06b49f.png"> 2025-10-22T12:32:05Z https://njump.me/nevent1qqsp5ln3k4jla64cng6fsx6pz3p208uge8csqz98udp9smeast9l42czyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhzgrgvxp Thinking about leaving #windows for Linux? Here is a quick rundown of the pros and cons to help you decide whether to make the switch 😎👇<br/><br/>What is your take? Would you go Linux full-time?<br/><br/>Find high-res pdf books with all my #linux and #cybersecurity related infographics from <a href="https://study-notes.org">https://study-notes.org</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/115/361/632/975/478/779/original/14418f257ed2368e.png"> 2025-10-12T14:20:50Z https://njump.me/nevent1qqs0n99pu0u8uusr3q57f6fdtfk24p9vz0rhln8l6cnsh7qer9vqt9czyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhz5cwhpp A FUSE filesystem is a user-space filesystem built on top of the Filesystem in Userspace (FUSE) kernel module, allowing developers to implement custom storage logic without writing kernel code<br/><br/>Here are a categorized list of Linux FUSE filesystems 😎👇 #sysadmin #devops<br/><br/>Find high-res pdf books with all my #linux and #cybersecurity related infographics from <a href="https://study-notes.org">https://study-notes.org</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/115/298/763/597/302/487/original/6cdcb143ece09ff3.png"> 2025-10-01T11:52:28Z https://njump.me/nevent1qqs9tl854m0lttdc428yc3j85h4w73kf7vkvh5drt6l7624yts63ymczyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhzruu8xr OS-level sandboxing provides kernel-enforced isolation that restricts processes, filesystems, and resources, ensuring applications run in contained and controlled environments<br/><br/>Here is a comparison of sandboxing support across different OS 😎👇 #infosec #linux #macos #freebsd #windows<br/><br/>Find a high-res pdf book with all my #cybersecurity related infographics from <a href="https://study-notes.org/cybersecurity-ebook.html">https://study-notes.org/cybersecurity-ebook.html</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/115/185/500/278/481/447/original/a9669d7ff63e32f0.png"> 2025-09-11T11:48:03Z https://njump.me/nevent1qqsvkknr40kdxjhd5p0f9uldaajj5utm33au3qxv8pq3xarp5lde9pszyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhzqm930q This chart compares filesystem support across #windows, #macos and #linux showing which OS can support different filesystems natively without relying on third-party tools like fuse or wsl 😎👇<br/><br/>Find a high-res pdf book with all my Linux related infographics from <a href="https://study-notes.org/linux-ebook.html">https://study-notes.org/linux-ebook.html</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/115/151/532/704/346/965/original/19c1962362ef7e82.png"> 2025-09-05T11:49:45Z https://njump.me/nevent1qqszsdgjrars3gxffs2shcdkrk3evgneehln62q25da55m6v4aujwmszyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhz9yr75a The Linux /proc filesystem is a virtual interface that exposes live system information and kernel parameters, enabling users to monitor hardware and processes and adjust kernel settings at runtime<br/><br/>Here are a list of useful /proc entries 😎👇 #sysadmin #devops <br/><br/>Find high-res pdf books with all my #Linux related infographics at <a href="https://study-notes.org">https://study-notes.org</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/114/857/144/037/735/425/original/9678efee46ba90e5.png"> 2025-07-15T12:02:32Z https://njump.me/nevent1qqstqc7gwrf6ec75pj2endgyskdqltjnh8gvhna67pstenj22ter2sszyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhzq559h9 The pv command is a handy but lesser-known tool that lets you monitor the progress of data through a pipe, displaying transfer speed, ETA, and total size. It’s often used with commands like tar, dd, or gzip to track the progress of file transfers, backups, or compression tasks<br/><br/>Here are useful pv command examples 😎👇 #sysadmin #devops #opensource <br/><br/>Find high-res pdf books with all my #linux related infographics at <a href="https://study-notes.org">https://study-notes.org</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/114/845/989/969/552/700/original/8b78b0a445df7b3a.png"> 2025-07-13T12:46:21Z https://njump.me/nevent1qqs0rada9vuxjv6suuunn8x049dh8r4yl8hj3q84v7lthl3crwh7r5czyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhzn50pq9 POSIX Basic Regular Expressions (BRE) define a standardized syntax and behavior for regular expressions to ensure compatibility across Unix-like systems. Tools like grep, sed, and awk on Linux commonly support BRE for text processing<br/><br/>Here are useful examples of POSIX BRE 😎👇 #freebsd #sysadmin #devops #opensource <br/><br/>Find high-res pdf books with all my #linux related infographics at <a href="https://study-notes.org">https://study-notes.org</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/114/795/053/076/359/659/original/554e10564b1a9153.png"> 2025-07-04T12:52:37Z https://njump.me/nevent1qqs2q6fap28k4u9yjn4fjmk766fjy55urj2kdh0jdlpfjmpa8cp4mygzyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhz6u8qhm On Linux, file extensions are mostly a matter of convention. They don’t determine how a file is handled. Instead, Linux relies on file permissions and internal metadata (like magic numbers) to identify and process files.<br/><br/>Still, learning common Linux file extensions is useful for understanding file types and managing files more effectively 😎👇 #sysadmin #devops #technology<br/><br/>Find high-res pdf books with all my #linux related infographics at <a href="https://study-notes.org">https://study-notes.org</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/114/783/528/350/737/863/original/48c488183470987b.png"> 2025-07-02T12:00:53Z https://njump.me/nevent1qqsx05v5rttt9c40mnvge6c3mt4majkaq3c6srdc0wlggarq9kyqqmczyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhz5cje3x Modern high-speed Ethernet standards often use optical transceivers to transmit data over long distances via fiber optic cables. These transceivers are essential in data centers, enterprise networks, and carrier infrastructure where copper cabling is insufficient for speed or distance requirements<br/><br/>Here are different types of optical transceivers 😎👇 #datacenters #sysadmin #technology<br/><br/>Find high-res pdf books with all my #networking related infographics at <a href="https://study-notes.org">https://study-notes.org</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/114/772/454/598/230/680/original/570845574fed26ec.png"> 2025-06-30T13:05:50Z https://njump.me/nevent1qqsfgw57vqt4d30289waf653554c7lms5hlhzt5tjrdvyu0gj7mwe2czyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhzpjxvtw OpenSSH is a secure networking toolkit that implements the SSH protocol, enabling encrypted remote logins, file transfers, and secure tunneling<br/><br/>Here are a list of CLI utilities that come with OpenSSH 😎👇 #sysadmin #cybersecurity #infosec #devops <br/><br/>Find high-res pdf books with all my #Linux related infographics at <a href="https://study-notes.org">https://study-notes.org</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/114/761/034/082/952/953/original/67ee330fc6a78cb3.png"> 2025-06-28T12:40:45Z https://njump.me/nevent1qqs8skfjygepay24y6scmyj0fsmnn5sdv4vhescwavy6npxrue8uavgzyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhz48mzdz SSD form factors come in various shapes and interfaces, like 2.5”, M.2, and U.2, mSATA, each designed to suit different performance needs, physical constraints, and connection types in computing systems<br/><br/>Here are a quick summary on different types of SSD form factors 😎👇 #ssd #computer #tech<br/><br/>Find high-res pdf books with all my #technology related infographics at <a href="https://study-notes.org">https://study-notes.org</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/114/743/815/077/542/946/original/dffa8400ea2111e0.png"> 2025-06-25T11:41:59Z https://njump.me/nevent1qqsxrx866sqpmfkaah87kk6duuvajmr6wzljry6nwr7c3rufsjzg50gzyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhzdhegch The netcat command lets you read from and write to network connections using TCP or UDP. Its flexibility makes it a must-have for infosec professionals, who use it for tasks such as port scanning, banner grabbing, and setting up reverse shells during penetration tests.<br/><br/>Here are useful netstat command examples 😎👇 #sysadmin #devops #infosec #opensource <br/><br/>Find high-res pdf books with all my #Linux related infographics at <a href="https://study-notes.org">https://study-notes.org</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/114/715/525/492/302/952/original/28c95e9e8ff059d4.png"> 2025-06-20T11:47:23Z https://njump.me/nevent1qqs0gl2cd0gud2e54yngjp8s5u3kupgx3en0ncl9dupgw4unqntjxcczyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhzp6vpmv A DNS amplification attack is a DDoS technique where attackers use vulnerable DNS servers to send large volumes of unsolicited DNS responses to a victim, magnifying the traffic and overwhelming the target’s system 😎👇 #infosec #dns #technology <br/><br/>Find high-res pdf books with all my #cybersecurity related infographics at <a href="https://study-notes.org">https://study-notes.org</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/114/630/575/085/982/006/original/99f05fb0599be8f0.png"> 2025-06-05T11:43:21Z https://njump.me/nevent1qqspqtkz0c47exa6maq2j6jyp5243ylh8pf5r0fhpshhtps026lvuhszyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhzj655ta USB standards define data transfer speeds, while connector types, often reused across versions, support multiple rates depending on the implementation<br/><br/>This infographic shows various USB connector types and the data transfer speeds associated with specific #usb standards 😎👇 #computer<br/><br/>Find high-res pdf books with all my #technology related infographics at <a href="https://study-notes.org">https://study-notes.org</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/114/579/614/055/940/863/original/64ef27fdfe1c36ad.png"> 2025-05-27T11:43:21Z https://njump.me/nevent1qqswnjsmzfljf2ranpfr4pgkvk3pj4mhx7tvncr69d8lgypf9xdpj9czyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhzt5jh4d Securing Linux environments that run containerized workloads requires safeguarding active containers, scanning base images for vulnerabilities, hardening the host OS, and securing the container orchestrator, such as Kubernetes<br/><br/>Here are a list of container security tools available for #Linux 😎👇 #devops #docker #kubernetes #infosec <br/><br/>Find high-res pdf books with all my #cybersecurity related infographics at <a href="https://study-notes.org">https://study-notes.org</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/114/562/962/492/939/902/original/73b1400c7d4a1a60.png"> 2025-05-24T13:09:03Z https://njump.me/nevent1qqsvmcj3njc62kvgemw4ty8qscgy559ygpx3uteknqyxdxrgguycy9qzyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhz2ejg5r Android’s file system is based on #linux and organized into distinct partitions: /system holds the core OS files, /data contains user apps and personal data, and /storage provides access to internal and external storage locations<br/><br/>Here is a description of #android file system hierarchy 😎👇<br/><br/>Find high-res pdf books with all my #technology related infographics at <a href="https://study-notes.org">https://study-notes.org</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/114/529/054/915/587/978/original/1d4f57de8de535f8.png"> 2025-05-18T13:25:18Z https://njump.me/nevent1qqsdrgpg49r96ydgjec34y2gf0xuycgzqhv3qtrapm8u0k2udrjqk7czyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhzkllfqv UEFI and Legacy BIOS are two different systems that start up a computer when it powers on. Legacy BIOS is the older, traditional firmware, while UEFI is its modern replacement, offering more features, better security, and support for larger storage devices<br/><br/>Here is a quick comparison between the two 😎👇 #computer #hardware<br/><br/>Find high-res pdf books with all my #technology related infographics at <a href="https://study-notes.org">https://study-notes.org</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/114/494/713/157/650/507/original/da7d75acaf59ada1.png"> 2025-05-12T11:51:48Z https://njump.me/nevent1qqs9t0mrynde4fmkcq4r3lqa9jkl2wahpj0jha0h2lrkz7xvh2qxkrqzyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhzdj8z3u DNS is a distributed naming system that converts human-readable domain names into IP addresses. It works through a hierarchy of name servers, each handling part of the domain space, guiding queries step-by-step until the correct IP is found<br/><br/>Here is an illustration of how DNS works 😎👇 #technology #dns #sysadmin<br/><br/>Find high-res pdf books with all my networking related infographics at <a href="https://study-notes.org">https://study-notes.org</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/114/404/073/210/332/353/original/31874d5e54ceb939.png"> 2025-04-26T11:41:25Z https://njump.me/nevent1qqswurks8l3s2g0mm3agdz4qsnsmyd4kczaqzv90nk9hh9626rr25hszyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhzzyzjc0 Linux TUI (Text User Interface) software offers a user-friendly way to interact with applications directly from the terminal, using text-based menus and interfaces instead of a graphical desktop environment<br/><br/>Here are a categorized list of useful TUI software available on Linux 😎👇 #sysadmin #opensource <br/><br/>Find pdf books with all my #Linux related infographics at <a href="https://study-notes.org">https://study-notes.org</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/114/347/379/330/144/568/original/26fb084d518b2b52.png"> 2025-04-16T11:22:52Z https://njump.me/nevent1qqs03y72v68yuyg2x0t9sqletsktv54lrsmaduhwng5p6g0qynmrtlgzyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhz7q2xr4 WiFi mainly uses the 2.4 GHz and 5 GHz frequency bands, with 6 GHz gaining traction. Each band balances speed and range differently. Lower frequencies offer better coverage, while higher ones deliver faster data rates<br/><br/>Here is a quick comparison of 2.4 GHz and 5 GHz WiFi frequency bands 😎👇 #wifi #wireless #technology <br/><br/>Find high-res pdf books with all my networking related infographics at <a href="https://study-notes.org">https://study-notes.org</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/114/330/995/617/657/278/original/2bd253ebe1f69322.png"> 2025-04-13T13:56:28Z https://njump.me/nevent1qqs00e7t2hvypvp37235ktth8d53m405802yg97gy4kh9h4xyngkl7gzyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhztwqkyl Managed switches provide advanced control, monitoring, and traffic management features, allowing network admins to optimize performance and security—capabilities not available in unmanaged switches<br/><br/>Here are a list of common features found in managed network switches 😎👇 #technology <br/><br/>Find high-res pdf books with all my #networking related infographics at <a href="https://study-notes.org">https://study-notes.org</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/114/313/502/855/246/658/original/febefe7db240b7b5.png"> 2025-04-10T11:47:48Z https://njump.me/nevent1qqs07depvwjx6p8pkhq8tfqea7v7vdln4qc6nuggxqd0dyg5ze7papgzyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhz0adcxp Network monitoring is the process of capturing and analyzing traffic across OSI layers 2 to 4, offering visibility into how data moves through the network and how different protocols interact during communication<br/><br/>Here are Linux-based network monitoring tools, categorized by the OSI layer they operate on 😎👇 #sysadmin<br/><br/>Find high-res pdf books with all my #Linux related infographics at <a href="https://study-notes.org">https://study-notes.org</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/114/302/166/445/881/968/original/dc028cc8781a3437.png"> 2025-04-08T11:44:41Z https://njump.me/nevent1qqsdqafdyc738tclr3u5ya88gpkjjsfz53q4c9c5d4kp28usgxg06vqzyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhzsla2ek Ethernet cables are classified into “CAT-N” categories (“CAT” meaning Category) based on their performance specifications, primarily bandwidth (MHz), maximum data rate (Mbps or Gbps), and transmission distance<br/><br/>Here are the different CAT types of Ethernet cables 😎👇 #datacenter <br/><br/>Find pdf books with all my #technology related infographics at <a href="https://study-notes.org">https://study-notes.org</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/114/296/489/277/425/102/original/7fa1c458544373e4.png"> 2025-04-07T11:41:16Z https://njump.me/nevent1qqsqnm5ckgc8g2f5fs2qs3ws8zmkp92kd8n8qwsz9xdlnutdm9ru82qzyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhzy9rq28 Ads in your web browser can be blocked using browser extensions, DNS filtering, or firewall rules, each working at different layers of the browser or network stack. These tools aim to stop ads from rendering on web pages, improving #privacy, reducing load times, and enhancing the browsing experience<br/><br/>Here are a list of ad blocking software 😎👇<br/><br/>Find high-res pdf books with all my #Linux and #cybersecurity related infographics at <a href="https://study-notes.org">https://study-notes.org</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/114/273/897/071/890/186/original/36c014c4e4d9aba6.png"> 2025-04-03T11:54:59Z https://njump.me/nevent1qqs0jalkw9asjjdfgtgpyh53zzfrwsw8ddg6xjh0f8ujmp3mgurprjszyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhzxnqpf4 How SSD wear leveling works<br/><br/>SSD wear leveling is a technique that distributes write and erase cycles evenly across memory cells to extend the lifespan and reliability of the drive 😎👇<br/><br/>Find high-res pdf books with all my #technology infographics at <a href="https://study-notes.org">https://study-notes.org</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/114/245/574/571/202/779/original/11a23016dd0cc99b.png"> 2025-03-29T11:52:31Z https://njump.me/nevent1qqsyjzx2w46r0899cuc7mz2k78cmrkc63lqvr4gcvh7c65ndc6nxyjszyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhztzjzz7 A password manager helps you safely store and organize your passwords by locking them behind one master password, making it easy to access your accounts without sacrificing security.<br/><br/>Here is how a typical password manager works behind the scene 😎👇 #technology <br/><br/>Find high-res pdf books with all my #cybersecurity infographics at <a href="https://study-notes.org">https://study-notes.org</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/114/228/553/641/833/177/original/fabf4658ec10135c.png"> 2025-03-26T11:43:49Z https://njump.me/nevent1qqs0qwh8v4jv3f6mdw0e32kevm99pq7frfrfh0z3kxcgedldwefvwdczyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhz6rzmu6 Public DNS servers are freely accessible resolvers that offer DNS services with varying levels of security, including features like content filtering, DNS-over-TLS, and DNS-over-HTTPS<br/><br/>Here is a quick comparison of public DNS servers 😎👇 #technology<br/><br/>Find high-res pdf books with all my #cybersecurity infographics at <a href="https://study-notes.org">https://study-notes.org</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/114/222/893/510/635/641/original/192867d403545313.png"> 2025-03-25T11:44:19Z https://njump.me/nevent1qqsvet8g4u6dcqycje69gpmq7apd0m3cn8m4g488x945eqfd5zfjnhszyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhzxud6u4 Wireshark’s packet filters make it easy to zero in on specific network traffic, whether you are looking at protocols, IP addresses, ports, or even packet contents<br/><br/>Here are useful Wireshark filter examples 😎👇<br/><br/>Find high-res pdf books with all my #linux and #cybersecurity related infographics at <a href="https://study-notes.org">https://study-notes.org</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/114/188/914/217/607/099/original/ebe0f16ea9f20e7a.png"> 2025-03-19T11:43:03Z https://njump.me/nevent1qqsrjgmeuz7wygk5wpew2z3fg4hvpf0az9llrjd09qpp05vwtqu32tczyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhz0m6m7q Explore a collection of open-source privacy tools designed to enhance data security, encrypt communications, and protect online anonymity 😎👇 #opensource #privacy <br/><br/>Find high-res pdf books with all my #Linux and #cybersecurity related infographics at <a href="https://study-notes.org">https://study-notes.org</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/114/160/652/645/076/471/original/8b944102d8ddc003.png"> 2025-03-14T11:55:25Z https://njump.me/nevent1qqs0s3zn82mamfa0ke63tparpecusx07twqqmuhutzhhfx745kqzvvszyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhz0ahnch A router performs Layer 3 packet forwarding based on destination IP addresses, enabling inter-network communication while also supporting auxiliary functions such as NAT, firewalling, VPN termination, and DHCP<br/><br/>Here is a quick overview of common router functions 😎👇 #technology <br/><br/>Find high-res pdf books with all my networking related infographics at <a href="https://study-notes.org">https://study-notes.org</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/114/154/984/731/338/739/original/e958a4db6c02ba49.png"> 2025-03-13T11:54:14Z https://njump.me/nevent1qqsthddctak4nh0ut6zq3s2dqas7jwlyhvftrzk63tm7u5074z4nycqzyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhz5ce4kt Ethernet speed evolution is driven by increasing demands for higher bandwidth, lower latency, and improved network efficiency to support data-intensive applications, cloud computing, and AI workloads<br/><br/>Here is how Ethernet standards have evolved over time 😎👇 #datacenters<br/><br/>Find high-res pdf books with all my #technology related infographics at <a href="https://study-notes.org">https://study-notes.org</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/114/143/648/382/112/036/original/b61ebafbee2e749f.png"> 2025-03-11T11:51:51Z https://njump.me/nevent1qqsqzqwwvxh2qzxkhz0km8rzuzn9clr9uk6kthukgqha5apmzkeepsczyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhzqduk2k VisiData is a super handy terminal tool for exploring, analyzing and wrangling tabular data. It lets you load and manipulate huge datasets, CVS, JSON, Excel, you name it, right from the command line. You can sort, filter, aggregate and even visualize data on the fly, all in a slick spreadsheet-like interface. <br/><br/>VisiData is written in Python, so you can easily install it on #Linux, #macOS, #windows and BSD, anywhere Python can run 😎👇 #dataanalytics<br/><br/><a href="https://www.visidata.org/">https://www.visidata.org/</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/114/088/792/384/330/122/original/08510e3fc6a4f2b1.png"> 2025-03-01T19:20:56Z https://njump.me/nevent1qqsx85lfcu2nd8ctutr8nz8skre0c6dgk897lwl8fdp95zmkf6xnl2szyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhzdahr9j Data centers are the backbone of modern digital infrastructure, offering the computing power and storage needed for cloud services, enterprise applications, and global connectivity<br/><br/>Here are the top 10 data center providers based on the number of locations they operate worldwide 😎👇<br/><br/>Find high-res pdf books with all my #technology infographics at <a href="https://study-notes.org">https://study-notes.org</a> #datacenter<br/><br/> <img src="https://files.mastodon.social/media_attachments/files/114/075/941/612/778/707/original/966351bc0b5686e4.png"> 2025-02-27T12:52:47Z https://njump.me/nevent1qqs9e8cdy7ud7r82nwzuecswhuf70tx3ph2xqkn7fmq8du3j2esxudczyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhznqyec2 While the ps command is one of the most often used Linux utilities, many of you may not fully utilize its capabilities due to its complex and often confusing syntax<br/><br/>Here are a list of useful ps command examples 😎👇<br/><br/>Find high-res pdf books with all my #Linux related infographics at <a href="https://study-notes.org">https://study-notes.org</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/114/053/688/766/859/702/original/03379a6a463c0b3a.png"> 2025-02-23T14:33:09Z https://njump.me/nevent1qqst7zgfcwr9vedvx0u7d2wre7dw4yecnd3w4wjpyapc8reapqc9lnqzyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhzx34ztm The vast array of Linux distros reflects the diversity of user needs, offering solutions for everything from minimal setups to complex, specialized tasks<br/><br/>Which Linux distro is your choice? <br/><br/>Find high-res pdf books with all my #linux related infographics at <a href="https://study-notes.org">https://study-notes.org</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/114/008/067/567/615/392/original/3a444bb27fb87b5c.png"> 2025-02-15T13:11:09Z https://njump.me/nevent1qqsfk0nhw59pwtrl0njar9x6tq4rdhadjntuhhrkqf5xzchafvvjsuczyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhzsr9fm8 Linux PAM (Pluggable Authentication Modules) provides a flexible framework for managing authentication and access control policies for users and applications on Linux<br/><br/>Here is an overview of the Linux PAM architecture 😎👇<br/><br/>Find high-res pdf books with all my #linux and #cybersecurity related infographics at <a href="https://study-notes.org">https://study-notes.org</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/113/883/527/277/803/633/original/6f429f0b374c0af4.png"> 2025-01-24T13:18:50Z https://njump.me/nevent1qqsvpkawm64zwxr0fcvh4m2e3hwv208xe7hqjuyeah9gl2aymhhukhczyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhzkuf2yh Thinking about a new Linux laptop to run Linux on? Going with Linux laptop vendors can be a good option as they offer seamless hardware-software integration, pre-installed Linux distros, and guaranteed driver compatibility. Here are available Linux laptop vendors 😎👇<br/><br/>Find high-res pdf books with all my #linux and #cybersecurity related infographics at <a href="https://study-notes.org">https://study-notes.org</a><br/><br/> <img src="https://files.mastodon.social/media_attachments/files/113/866/505/971/566/477/original/d5f786206576cba3.png"> 2025-01-21T13:10:17Z https://njump.me/nevent1qqst2jy5rqtlpv5yf9zndq50dfcw68z7nmwx440zju8y56gxhfx8ccszyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhzv48q0q Data center network topologies are designed to optimize scalability, fault tolerance, and efficient data flow between servers and devices, ensuring high availability and performance<br/><br/>Here are well-known network topologies deployed in today’s data centers 😎👇<br/><br/>Find high-res pdf books with all my networking related infographics at <a href="https://study-notes.org">https://study-notes.org</a><br/><br/>#technology #datacenters #sysadmin<br/><br/> <img src="https://files.mastodon.social/media_attachments/files/113/815/471/699/078/274/original/cc07fcf35bcdb190.png"> 2025-01-12T12:52:07Z https://njump.me/nevent1qqswcrlgr4q8cpt4s5pezgsfzkucc5wv5a3kr5jyx6xvn4ptx9ek7nczyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhzrwkecu LVM is a disk management system of Linux that combines physical disks into a storage pool, enabling the creation of flexible logical volumes that can be resized or modified dynamically without rebooting the system<br/><br/>Here is a visual illustration of Linux LVM 😎👇<br/><br/>#linux #sysadmin<br/><br/> <img src="https://files.mastodon.social/media_attachments/files/113/691/209/773/488/572/original/fc5434cef28eff7c.png"> 2024-12-21T14:10:01Z https://njump.me/nevent1qqsdfq8zxcz79w7fnjcjk6rw2ayykm8mw6ar50rphv3t5pt5dkgq38szyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhz6ngtq3 Layer 2 Ethernet security focuses on protecting network traffic within a local LAN from threats like unauthorized access, data interception, tampering, and flooding attacks by implementing various defensive measures 😎👇<br/><br/>#cybersecurity #infosec #sysadmin #networksecurity<br/><br/> <img src="https://files.mastodon.social/media_attachments/files/113/685/773/624/231/732/original/0580e68a3c9e3d53.png"> 2024-12-20T15:08:08Z https://njump.me/nevent1qqs9lv73qpkgxczuyd8s3gu9hqe9agj3j0xtkx0ryu86cgc9a7gruvgzyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhzdvrfk0 Want more control and privacy without breaking the bank? Self-hosted alternatives to AWS let you customize your infrastructure to fit your needs while potentially cutting down on costs<br/><br/>Here are a list of self-hosted alternatives to AWS cloud services 😎👇<br/><br/>#aws #selfhosting #devops<br/><br/> <img src="https://files.mastodon.social/media_attachments/files/113/657/465/651/709/258/original/950516cfab877f5e.png"> 2024-12-15T15:08:31Z https://njump.me/nevent1qqsx0f0czr7d0vsffm0llnjkvne9wmu9ajc6klhz66sddjjeehejhvqzyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhz9ffffa In Linux, file permissions determine what access users, groups, and others have—whether they can read, write, or execute files. Since “everything is a file” in Linux, mastering file permissions is an essential step toward becoming a proficient Linux user<br/><br/>Here is a basic overview of Linux file permissions 😎👇<br/><br/>#linux #cybersecurity #infosec<br/><br/> <img src="https://files.mastodon.social/media_attachments/files/113/543/665/390/301/226/original/41e31e91ce3cf5e8.png"> 2024-11-25T12:47:29Z https://njump.me/nevent1qqsgwlvdw2hhdrtknhz9fy380dm6cgup4k9hhwr6qucwccaa2kawdpczyplp9mt7fzg7v60hzgszn5e5yvm92rjku2qdf2lsdk79xjtkpajhzvxe39n RaspAP is a user-friendly, feature-rich software that transforms Debian-based devices, like the Raspberry Pi, into wireless access points with a customizable web interface<br/><br/>Here is the main highlight of RaspAP 😎👇<br/><br/>#linux #raspberrypi #opensource<br/><br/> <img src="https://files.mastodon.social/media_attachments/files/113/498/715/316/717/779/original/096796cc6cf8ad7a.png"> 2024-11-17T14:16:12Z