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How can I Identify who SSH into my Linux System?

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Linux

Identifying who has logged into your system in Linux is way easier than the Windows Operating System.

In Linux System whenever someone tries to log in using SSH is recorded by the log file, the log file is located in /var/log/auth.log. location can be different in other distribution.

If you not found the auth.log file in your system try to execute the below command to view the log from systemctl.

journalctl -u sshd |tail -100

  • -u (Show the user journal for the current)
  • sshd (SSH user created by system by default)
  • tail -100 (Print top 100 result from log file)

journalctl of sshd
User logged in using SSH

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Kali Linux for android without rooting your device

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Linux

Kali Linux for android devices under ten minutes in just few steps.
Kali Linux for android

Daylight Linux Version 4

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Linux

Daylight Linux (Web site) version 4 has just been released.

The Linux kernel is now upgraded to the 5.3 version for the AMD64 live version and Kernel 4.19.68 for the Raspberry Pi version.

All packages are upgraded to the Debian 10 version or to the cutting-edge version (experimental) for all current software packages.

Added compatibility for the Raspberry Pi 4.

By Hamdy Abou El Anein
Founder / Linux system engineer

Daylight Linux V4

Daylight Linux V4

Daylight Linux V4

Daylight Linux V4

Daylight Linux V4

Microsoft's Deadly Touch

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Linux

Mask of death

Everything Microsoft touched has died. Remember Nokia, Yahoo and Novell? What happened to these companies and where are they now? This is exactly what Microsoft wants to do to Linux because they don't innovate and they can't compete; so they infiltrate. Sooner or later Linux will be part of those latter companies. Something to watch out for.

Assess your Linux Knowledge.

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Linux

This Linux testmight help to check your personal knowledge of the various topics discussed in the Linux/UNIX fundamentals courses, in order to find out assess your Linux skills.

Olinux- Everything about Linux

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Linux

Our goal is to help you solve your computer problems and learn new technologies. We write about things that are in any way related to Linux. This website is updated regularly with high quality content. Content throughout OLinux.net and Ethical Hacking covers the following areas:

VAR-SOM-MX7 is now available with Certified 802.11ac/a/b/g/n and Bluetooth 4.2 support

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Linux

Variscite Announces the Upgrade of its VAR-SOM-MX7 SoM with Bluetooth 4.2 and the Launch of its New VAR-SOM-MX7 Variant with Improved Dual-band 802.11ac/a/b/g/n Certified Wi-Fi Module.

Translation of the Latest 'Microsoft Loves Linux' Charm Offensive

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Linux

QUITE a few additional articles -- mostly puff pieces (below is a complete/exhaustive list) -- have been published since yesterday's blog post, which was followed by a short article from Techrights. There is a lot of Microsoft PR inside the news/media right now (more and more by the hour) and it's coordinated (sometimes in advance, based on what we learned yesterday) by Microsoft. Here is a quick rebuttal to the 4 strands of news:

  1. The Linux Foundation joins Microsoft (not a slip): Microsoft paid half a million dollars for over a hundred puff pieces (in English alone) and lots of leverage over Linux, including a distraction from the patent wars it wages.
  2. The GNU/Linux crowd gets a proprietary software database it neither wants nor needs: This might be useful when Microsoft tries to infiltrate GNU/Linux deployments like the one in Munich, later boasting better integration with Windows than with GNU/Linux (same for running Bash/Ubuntu under Windows 10).
  3. Google and .NET: Microsoft accepts that it lost the mobile wars and also lost developers, so it tries ever more desperately to spread .NET and/or Mono.
  4. Tizen/Samsung and .NET: As above.

That's about all it means. Below is the raw PR, which is intended to sometimes (it doesn't always work) mislead the reader, having misled the writers/journalists.

Related/contextual items from the news:

  1. Microsoft demonstrates its commitment to open source by joining Linux Foundation [Ed: Microsoft advocacy sites (often paid-for nonsense) like to pretend to themselves that Microsoft is now a good citizen, not racketeer. iophk: “You’ve probably seen links about LF joining Microsoft so I won’t add them. It would have been news if Microsoft joined OIN.”]
  2. Microsoft joins The Linux Foundation as a Platinum member [Ed: How MS advocacy sites put it; the larger payment (like political 'donation') was inevitable. To quote Benjamin Henrion, "Microsoft depends so much on taxing Linux via its dubious software patents that they have decided to join the Linux Foundation #corruption"]
  3. Microsoft now a Platinum Member at Linux Foundation and .NET foundation has Google onboard
  4. Microsoft joins the Linux foundation and blows everyone’s mind
  5. Microsoft And Linux Working On Advance Open Source Project Development, SQL Server And Azure App Service
  6. Microsoft and Linux Collaborates For Open-Source Game; As Rivals Unite, How Could Linux Benefit From This?
  7. Microsoft joins Linux Foundation as it continues to embrace open source
  8. Microsoft join hands with Linux Foundation as platinum member
  9. Microsoft joins the Linux Foundation as a Platinum member
  10. Microsoft Becomes a Member of The Linux Foundation
  11. Is Google crashing the Microsoft open source party?
  12. Microsoft: SQL Server for Linux is the real deal
  13. Microsoft doubles down on Linux love, joins foundation
  14. Microsoft joins the Linux Foundation, launches test build of Visual Studio for Mac
  15. Microsoft makes open source commitment with new partnerships involving Google, Linux, Samsung
  16. Microsoft joins Linux Foundation as a Platinum Member
  17. Microsoft joins Linux Foundation, Open-Source development to get major boost
  18. Microsoft joins Linux Foundation at Platinum Partner
  19. After OpenAI Partnership, Microsoft Joins The Linux Foundation To Dive Deeper Into Open-Source Code
  20. Microsoft is joining the Linux Foundation
  21. Microsoft Joins Linux Foundation, Bets on Open Cloud Computing
  22. Microsoft Shows Linux Love by Joining the Linux Foundation
  23. Loves spreads, new Microsoft SQL Server now previewed on Ubuntu
  24. Microsoft joins the Linux Foundation, no really
  25. Linux Academy Partners with Microsoft Visual Studio Dev Essentials Program
  26. Microsoft Becomes Linux Foundation Platinum Member, The Last Leaf has Fallen
  27. Microsoft joins the Linux Foundation, confirms commitment to open source development
  28. Microsoft has joined the Linux foundation
  29. Microsoft Joins Linux Foundation, After Calling Linux a 'Cancer'
  30. Microsoft Drops Tech Bombshell As It Joins Linux Foundation
  31. Microsoft partners with the Linux Foundation
  32. Microsoft and Google bury the hatchet in one small way
  33. Microsoft Joins the Linux Foundation As Everyone Now Loves Open Source
  34. Microsoft is the Platinum member of Linux Foundation
  35. Linux Foundation Gets a Surprising New Member: Microsoft
  36. SQL Server joins the Linux party, new preview comes to Linux and Docker
  37. Microsoft joins the Linux Foundation as a Platinum member, Google joins .Net community
  38. Microsoft joins Linux Foundation that promotes open-source technology
  39. Microsoft SQL Server Supports Linux
  40. Cricket Australia to adopt Microsoft’s team and player performance platform
  41. Microsoft announces association with Linux Foundation with Platinum membership
  42. Microsoft joins The Linux Foundation at highest membership tier
  43. Microsoft Joins Linux Foundation As Platinum Member And Releases Ports
  44. Microsoft Embraces Open Source, Joins Linux Foundation
  45. As Microsoft joins Linux, Google shakes hands with the .NET Foundation
  46. Microsoft joined the Linux foundation as a platinum member because of Cloud Services
  47. Microsoft, Google, and Samsung Bury the Hatchet with New Partnerships
  48. Microsoft, Google, Samsung Team Up In Open Source Development
  49. Microsoft surprises by joining Linux, 15 years after calling it a ‘cancer’
  50. Microsoft joins Linux Foundation in another nod to open-source code
  51. Microsoft officially joins the Linux league of open source contributors
  52. After Microsoft joins Linux, Google Cloud joins .NET Foundation
  53. Google signs on to the .NET Foundation
  54. Microsoft Joins Linux Foundation
  55. Microsoft’s .NET Foundation Now Includes Google
  56. Microsoft Joins The Linux Foundation In Latest Open Source Commitment
  57. Microsoft joins The Linux Foundation; takes on Oracle
  58. Microsoft Joins The Linux Foundation to Boost Open Source Software Ecosystem
  59. Microsoft has officially joined the Linux Foundation

Linux Foundation Commits Suicide as Microsoft E.E.E. Takes a Leap Forward

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Linux

I have covered Microsoft's interference with FOSS for over a decade and carefully studied even pertinent antitrust documents. I know the company's way of thinking when it comes to undermining their competition, based on internal communications and strategy papers. Even days ago we got this in the news.

The pattern of embrace and extend (to extinguish) -- all this while leveraging software patents to make Linux a Microsoft cash cow or compel OEMs to preinstall privacy-hostile Microsoft software/apps with proprietary formats (lockin) -- never ended. What I see in the Linux Foundation right now is what I saw in Nokia 5 years ago and in Novell 10 years ago -- the very thing that motivated me to start Boycott Novell, a site that has just turned 10 with nearly 22,000 blog posts.

It is a saddening day because it's a culmination, after years of Microsoft 'micro' payments to the Linux Foundation (e.g. event sponsorship in exchange for keynote positions), which will have Microsoft shoved down the throats of GNU/Linux proponents and give an illusion of peace when there is none, not just on the patent front but also other fronts (see what Microsoft's partner Accenture is doing in Munich right now). The links below are a complete list of the bad (in my view very bad) news.

"We need to slaughter Novell before they get stronger….If you’re going to kill someone, there isn’t much reason to get all worked up about it and angry. You just pull the trigger. Any discussions beforehand are a waste of time. We need to smile at Novell while we pull the trigger."

--Jim Allchin, Microsoft's Platform Group Vice President

In the news today:

Subsonic 5.1 Media Streamer Released, Install In Ubuntu/Linux Mint

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Linux


Subsonic 5.1 Released, Install In Ubuntu/Linux Mint

Subsonic is a nice free, multi-platform web basedmedia streamer, make large collection of music handling easy. You can share music with your frineds or stream your favorite music anywhere. You can stream to multiple players simultaneously.
 
 
 
 

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today's leftovers

  • Ubuntu Weekly Newsletter Issue 678

    Welcome to the Ubuntu Weekly Newsletter, Issue 678 for the week of April 4 – 10, 2021.

  • Ubuntu Blog: Design and Web team summary – 12 April 2021

    The web team at Canonical run two-week iterations building and maintaining all of Canonical websites and product web interfaces. Here are some of the highlights of our completed work from this iteration. This iteration has seen many of the team out of the office as schools are out in the UK. This has not limited the exciting new features and developments from the team.

  • Enabling Rapid Decision Making with SUSE Linux Enterprise Server and NVIDIA Virtual GPU (vGPU)
  • SUSECON Digital 2021: a Behind-the-Scenes Look at a Space Oddity | SUSE Communities

    It’s been almost a year since we unveiled SUSECON Digital 2020 – our first virtual SUSECON event. No lies, that event was pulled off in a frenzied whirlwind of pandemic onslaughts, virtual session recordings, and bandwidth battles. Frankly, I was amazed that we met our production schedule in the wake of the Covid-cancellation of our live event in Dublin. And I was even more amazed at our SUSECON audience reaction to the virtual event. You loved it! As one of the first virtual conferences of the Covid era, your feedback told us that we had delivered exactly what was needed at the time. What an exceptional opportunity for us to include thousands of friends from all over the world who normally can’t join us at the big event!

  • JK Tyre & Industries improves operating efficiency and drives future innovation with SUSE
  • Top 3 Linux Server Operating Systems in 2021

    In this article we will look at several Linux distributions, which are an excellent choice if we want to use them as servers. We chose them precisely because they have an excellent level of security, regular patch maintenance and updates, and huge communities. In addition, there are thousands of tutorials on the Internet for every single thing on how to do it and last but not least they are easy to use. [...] Although we have not put them in the top three, not because they are not unique server operating systems, but because they require more patience, knowledge and time, we must mention FreeBSD, Red Hat, Cent OS and Fedora.

  • Element Keeps conversations in your control

    You are probably using chat applications like Slack, WhatsApp, Discord, Facebook Messenger, Telegram, and another chat app. These are all great to have but in using them you are making a trade-off; you are trading security and privacy for a service that easy to use. Matrix is an open standard for communication messages. It is not a server so much as a standard way for clients and servers to talk with each other. The clients and server are open sources. With Matrix, you are not giving your data away to a company that is going to profile you and target advertising at you. This provides a degree of transparency you can look at the code, and you can be confident that it is behaving itself. Many developer love Matrix because it let them build on it like Lego bricks and write their clients and servers bots or anything else you can self-host your Matrix server and that means you can create a private community where it knows that your communications are not being intercepted by anybody else. Matrix also has the option for end-to-end encryption, so you know that your messages are private. Let’s take a look at a Matrix client known as Element (Riot and Vector) and it is pretty much the reference messaging client.

  • RSS Guard 3.9.2

    RSS Guard is a simple (yet powerful) feed reader. It is able to fetch the most known feed formats, including RSS/RDF and ATOM. It's free, it's open-source. RSS Guard currently supports Czech, Dutch, English, French, German, Italian. RSS Guard will never depend on other services - this includes online news aggregators like Feedly, The Old Reader and others.

  • Free Software: Is It Just A Thing Of The Past?

    Free software is an idea that has existed since before the foundation of Linux but has the idea become stuck in the past and is FOSS something that we should move past, this author seems to think so, I disagree though.

  • New Linux Foundation project takes blockchain and the open source approach to the insurance industry
  •    
  • Linux Foundation Hosts Collaboration Among World’s Largest Insurance Companies

    The Linux Foundation, the nonprofit organization enabling mass innovation through open source, and the American Association of Insurance Services (AAIS), today are announcing the launch of OpenIDL, the Open Insurance Data Link platform and project. The platform will reduce the cost of regulatory reporting for insurance carriers, provide a standardized data repository for analytics and a connection point for third parties to deliver new applications to members. openIDL brings together some of the world’s largest insurance companies, including The Hanover and Selective Insurance Group, along with technology and service providers Chainyard, KatRisk and MOBI to advance a common distributed ledger platform for sharing information and business processes across the insurance ecosystem. [...] “AAIS, and the insurance industry in general, are trailblazers in their contribution and collaboration to these technologies,” said Mike Dolan, senior vice president and general manager of Projects at the Linux Foundation. “Open governance networks like openIDL can now accelerate innovation and development of new product and service offerings for insurance providers and their customers. We’re excited to host this work.” As an open source project, all software source code developed will be licensed under an OSI-approved open source license, and all interface specifications developed will be published under an open specification license. And all technical discussions between participants will take place publicly, further enhancing the ability to expand the network to include other participants. As with an openly accessible network, organizations can develop their own proprietary applications and infrastructure integrations.

  • Windows, Ubuntu, Zoom, Safari, MS Exchange Hacked at Pwn2Own 2021

    The 2021 spring edition of Pwn2Own hacking contest concluded last week on April 8 with a three-way tie between Team Devcore, OV, and Computest researchers Daan Keuper and Thijs Alkemade. [...] The Zoom vulnerabilities exploited by Daan Keuper and Thijs Alkemade of Computest Security are particularly noteworthy because the flaws require no interaction of the victim other than being a participant on a Zoom call. What's more, it affects both Windows and Mac versions of the app, although it's not clear if Android and iOS versions are vulnerable as well. Technical details of the flaws are yet to be disclosed, but in a statement sharing the findings, the Dutch security firm said the researchers "were then able to almost completely take over the system and perform actions such as turning on the camera, turning on the microphone, reading emails, checking the screen and downloading the browser history."

  • Security updates for Monday

    Security updates have been issued by CentOS (kernel and libldb), Debian (mediawiki, qemu, ruby-kramdown, and xen), Fedora (grub2, libldb, libopenmpt, python-pikepdf, python39, samba, squid, and webkit2gtk3), openSUSE (bcc, ceph, gssproxy, hostapd, isync, kernel, openexr, openSUSE KMPs, and tpm2-tss-engine), SUSE (fwupdate and wpa_supplicant), and Ubuntu (spamassassin).

Programming Leftovers

  • Create Beautiful Websites Using Emacs Org Mode

    In my never-ending quest to find the perfect way to create beautiful (yet minimal) websites, I had to try out Org Export in Emacs. Since I tend to write everything in Org Mode these days, it would be amazing to simply be able to convert my Org docs into HTML, and maybe add a little CSS to spice things up.

  • Qt Creator 4.15: New CMake Features

    Qt Creator 4.15 comes with a bunch of features and bug fixes for the CMake Project Manager. Below, you have a list of what’s new and a few tips and tricks which would hopefully improve your CMake experience in Qt Creator.

  • 7 Popular Open Source CI/CD Tools

    DevOps is a software development strategy that incorporates agile practices for fast, efficient product creation and release. It focuses on integration of development and operations teams, continuous integration/continuous delivery (CI/CD) and automation of tasks and processes. Typically, DevOps teams use pipelines to streamline and standardize processes. DevOps pipelines are toolchains that teams can use to automate tasks and provide visibility into the software development life cycle. In this article, we’ll cover seven popular open source CI/CD tools.

  • Community Member Monday: Gökçe Kuler

    I’m from Aydın, Turkey. Currently I’m studying in my final years at the Computer Engineering department of Çanakkale Onsekiz Mart University. I’m interested in free software – and enjoy working with free software projects and learning new things aboutthemit. I met free software when I started university via my advisor Necdet Yücel. I like playing the guitar and the kalimba. Also, I recently started painting with acrylic paints. I’m vegetarian, and actively participate in animal protection and gender equality projects.

  • App Showcase: Drawing

    Drawing is a simple app in the PureOS store to doodle on a digital canvas.

today's howtos

  • How to Use tcpdump and 6 Examples

    Are you trying to capture data packets in order to analyze traffic on your network? Maybe you are a server administrator who has bumped into an issue and wants to monitor transmitted data on the network. Whatever the situation be, the tcpdump Linux utility is what you need. In this article, we will discuss the tcpdump command in detail, along with some guides on how to install and use tcpdump on your Linux system.

  • How to play The Forest on Linux

    The Forest works on Linux, but only with Proton’s help, which is a built-in feature of the Linux release of Steam. So, before we can go over how to configure the game, we must demonstrate how to install Steam on Linux.

  • How to Install CopyQ Clipboard Manager 4.0.0 in Ubuntu 20.04 | UbuntuHandbook

    The CopyQ clipboard manager released version 4.0.0 a day ago. Here’s how to install it in Ubuntu 20.04, Ubuntu 21.04, Ubuntu 18.04 via PPA. CopyQ is a free and open-source clipboard manager with editing and scripting features. The new 4.0.0 release features new script engine with some new functions, better ECMAScript support, improved performance.

  • These 10 Sed Examples Will Make You a Linux Power User

    Editing text files and terminal output is an everyday job for those who administer Linux machines. Command-line utilities like sed allow a user to modify and change the content of a text file right from the terminal window. In this article, we will discuss the sed command in detail, along with some essential examples that demonstrate the power of the sed utility in Linux.

Today in Techrights