Language Selection

English French German Italian Portuguese Spanish

Linux

How can I Identify who SSH into my Linux System?

Filed under
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

Read more

Kali Linux for android without rooting your device

Filed under
Linux

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

Daylight Linux Version 4

Filed under
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

Filed under
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.

Filed under
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

Filed under
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

Filed under
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

Filed under
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

Filed under
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

Filed under
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.
 
 
 
 

Read at LinuxAndUbuntu

Syndicate content

More in Tux Machines

Open Hardware: Crowbits, Raspberry Pi, and RISC-V

  • Crowbits Master Kit Tutorial - Part 2: ESP32 intrusion scanner and visual programming - CNX Software - Embedded Systems News

    I started Crowbits Master Kit review last month by checking out the content, user manual, and some of the possible projects for the ESP32 educational kit including a 2G phone and a portable game console. For the second part of the review, I’ll go through one of the lessons in detail, namely the intrusion scanner to show the whole process and how well (or not) it works. Let’s go to Lesson 5 directly, although I’d recommend going through the first lessons that provide details about the hardware and visual programming basics using Letscode program, which is basically a custom version of Scratch for Crowbits

  • RP2040-PICO-PC small computer made with the Raspberry Pi RP2040-PICO module first prototypes are ready

    It’s small base board for RP2040-PICO the $4 module with the Cortex-M0+ processor made by Raspberry Pi foundation.

    We were ready with the prototype for a long time but the RP2040-PICO modules were tricky to source

  • ESP32-C6 WiFI 6 and Bluetooth 5 LE RISC-V SoC for IoT devices coming soon - CNX Software - Embedded Systems News

    Espressif Systems introduced their first RISC-V wireless SoC last year with ESP32-C3 single-core 32-bit RISC-V SoC offering both 2.4GHz WiFi 4 and Bluetooth 5.0 LE connectivity, and while the company sent some engineering samples of ESP32-C3 boards months ago, general availability of ESP32-C3-DevKitM-1 and modules is expected shortly. But the company did not stop here, and just announced their second RISC-V processor with ESP32-C6 single-core 32-bit RISC-V microcontroller clocked at up to 160 MHz with both 2.4 GHz WiFi 6 (802.11ax) and Bluetooth 5 LE connectivity.

Linux, NetBSD, and OpenBSD

  • EXT4 With Linux 5.13 Looks Like It Will Support Casefolding With Encryption Enabled - Phoronix

    While EXT4 supports both case-folding for optional case insensitive filenames and does support file-system encryption, at the moment those features are mutually exclusive. But it looks like the upcoming Linux 5.13 kernel will allow casefolding and encryption to be active at the same time. Queued this week into the EXT4 file-system's "dev" tree was ext4: handle casefolding with encryption.

  • SiFive FU740 PCIe Support Queued Ahead Of Linux 5.13 - Phoronix

    Arguably the most interesting RISC-V board announced to date is SiFive's HiFive Unmatched with the FU740 RISC-V SoC that features four U74-MC cores and one S7 embedded core. The HiFive Unmatched also has 16GB of RAM, USB 3.2 Gen 1, one PCI Express x16 slot (operating at x8 speeds), an NVMe slot, and Gigabit Ethernet. The upstream kernel support for the HiFive Unmatched and the FU740 SoC continues. With the Linux 5.12 cycle there was the start of mainlining SiFive FU740 SoC support and that work is continuing for the upcoming Linux 5.13 cycle.

  •                  
  • The state of toolchains in NetBSD
                     
                       

    While FreeBSD and OpenBSD both switched to using LLVM/Clang as their base system compiler, NetBSD picked a different path and remained with GCC and binutils regardless of the license change to GPLv3. However, it doesn't mean that the NetBSD project endorses this license, and the NetBSD Foundation's has issued a statement about its position on the subject.

                       

    Realistically, NetBSD is more or less tied to GCC, as it supports more architectures than the other BSDs, some of which will likely never be supported in LLVM.

                       

    As of NetBSD 9.1, the latest released version, all supported platforms have recent versions of GCC (7.5.0) and binutils (2.31.1) in the base system. Newer (and older!) versions of GCC can be installed via Pkgsrc, and the following packages are available, going all the way back to GCC 3.3.6: [...]

  •                
  • Review: OpenBSD 6.8 on 8th Gen Lenovo ThinkPad X1 Carbon 13.3"
                     
                       

    10 days ago, I bought this X1 Carbon. I immediately installed OpenBSD on it. It took me a few days to settle in and make myself at home, but here are my impressions.

                       

    This was the smoothest experience I've had getting OpenBSD set up the way I like it. The Toshiba NB305 in 2011 was a close second, but the Acer I used between these two laptops required a lot more tweaking of both hardware and kernel to get it to feel like home.

Audio/Video and Games: This Week in Linux, MineTest, OpenTTD, and Portal Stories: Mel

  • This Week in Linux 146: Linux on M1 Mac, Google vs Oracle, PipeWire, Bottom Panel for GNOME Shell - TuxDigital

    On this episode of This Week in Linux, we’ve got an update for Linux support on Apple’s M1 Mac hardware. KDE Announces a new patch-set for Qt 5. IBM Announced COBOL Compiler For Linux. Then later in the show we’re bringing back everyone’s favorite Legal News segment with Google v. Oracle reaching U.S. Supreme Court. We’ve also got new releases to talk about such as PipeWire 0.3.25 and JingOS v0.8 plus GNOME Designers are exploring the possibility of having a bottom panel. Then we’ll round out the show with some Humble Bundles about programming in Python. All that and much more on Your Weekly Source for Linux GNews!

  • MineTest: I Am A Dwarf And I'm Digging A Hole

    People have been asking me to play MineTest for ages so I thought I should finally get around to it, if you've never heard of it MineTest is an open source Minecraft clone that surprisingly has a lot of community support

  • OpenTTD Went to Steam to Solve a Hard Problem - Boiling Steam

    OpenTTD, the free and open-source software recreation of Transport Tycoon Deluxe, has been a popular game for a long time, but recently something unusual happened. The team behind the project decided to release the game on Steam (still free as always) and this has changed everything. Let me explain why this matters. If you have ever played OpenTTD on Linux, let me venture that you have probably relied on your distro’s package manager to keep your game up-to-date. In theory, this is the BEST way to keep your packages up to date. Rely on maintainers. In practice however, it’s far from being something you can rely on, beyond security updates. Debian stable tends to have really old packages, sometimes years behind their latest versions. So on Debian stable you end up with OpenTTD 1.08 as the most recent version. That’s what shipped in April 2018. Just about 3 years old.

  • Portal Stories: Mel gets Vulkan support on Linux in a new Beta | GamingOnLinux

    Portal Stories: Mel, an extremely popular and highly rated mod for Portal 2 just had a new Beta pushed out which adds in Vulkan support for Linux. Much like the update for Portal 2 that recently added Vulkan support, it's using a special native build of DXVK, the Vulkan-based translation layer for Direct3D 9/10/11. Compared with the Portal 2 update, in some of my own testing today it seems that Portal Stories: Mel seems to benefit from the Vulkan upgrade quite a bit more in some places. At times giving a full 100FPS increase! So for those on weaker cards, this will probably be an ideal upgrade. Another game to test with Vulkan is always great too.

today's howtos

  • How to Install TeamSpeak Client on Ubuntu 20.04 Linux - Linux Shout

    TeamSpeak is a free voice conferencing software available to install on Linux, Windows, macOS, FreeBSD, and Android. It is the pioneer in its areas of other platforms such as Discord. TeamSpeak allows free of cost access to around 1000 public TeamSpeak servers or even your own private one. In parallel to online games, you can use the current TeamSpeak to communicate with friends via speech and text.

  • How To Install Robo 3T on Ubuntu 20.04 LTS - idroot

    In this tutorial, we will show you how to install Robo 3T on Ubuntu 20.04 LTS. For those of you who didn’t know, Robo3T formerly known as RobMongo is one of the best GUI tools for managing and querying MongoDB database. It provides GUI tools for managing & querying the MongoDB database. It embeds the actual mongo shell that allows for CLI as well as GUI access to the database. This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you through the step-by-step installation of Robo 3T RobMongo on an Ubuntu 20.04 (Focal Fossa) server. You can follow the same instructions for Ubuntu 18.04, 16.04, and any other Debian-based distribution like Linux Mint.

  • How to Install Java on Ubuntu Step by Step Guide for Beginners

    Some programs/tools/utility on Ubuntu required java/JVM, without java these programs are not working. Are you facing the same problem? Don’t worry! Today I am going to cover in this article how to install Java on Ubuntu. This article will cover the complete tutorial step by step. You can get java on Ubuntu via three packages JRE, OpenJDK and Oracle JDK. Java and Java’s Virtual Machine (JVM) are widely used and required to run much software.

  • "apt-get command not found" error in Ubuntu by Easy Way

    apt-get command is used to manage package in Ubuntu and other Debian based distribution. You can install, remove software in Ubuntu, You can update upgrade ubuntu and other operating systems with help of this command. If you want to install new software on the Linux operating system by apt-get command but you get the error “apt-get command not found“. This is really the biggest problem for the new user. Neither you can install new packages nor you can update and upgrade ubuntu. apt-get is not working, how will you install a new package? If the problem only of installing new packages then it can be solved. You can use dpkg command to install deb files in ubuntu and derivatives.

  • How to upgrade Linux Mint 19.3 (Tricia) to Mint 20.1 (Ulyssa) - Linux Shout

    Are you planning to upgrade your existing Linux Mint 19.3 (Tricia) PC or Laptop to Linux Mint 20.1 Ulyssa, then following the simple steps given in the tutorial… Linux Mint is one of the popular distros among users who want a Windows-like operating system but with the benefits of Linux and a user-friendly interface. As Mint is an Ubuntu derivative, thus not only we have the access to a large number of packages to install but also stability. The process of upgrading Mint is very easy, we can use GUI or command to do that. However, in this article, we will show you how to upgrade from Tricia (19.3) to Ulyssa (20.1) using CLI, thus first you have to make sure that your existing Mint 19.3 is on 64-bit because 20.1 doesn’t support 32-bit.

  • How to Install Node js in Ubuntu Step by Step Explanation for Beginners

    Node.js is an open source cross-platform JavaScript run-time environment that allows server-side execution of JavaScript code. In simple words you can run JavaScript code on your machine (server) as a standalone application, and access form any web browser. When you create a server side application you need Node.js, it is also help to create front-end and full-stack. npm (Node Package Manager) is a package manager for the JavaScript programming language, and default package manager for Node.js. This tutorial will cover step by step methods “how to install node js in ubuntu 19.04″. in case you need the latest Node.js and npm versions. If you are using Node.js for development purposes then your best option is to install Node.js using the NVM script. Although this tutorial is written for Ubuntu the same instructions apply for any Ubuntu-based distribution, including Kubuntu, Linux Mint and Elementary OS.

  • How to play Geometry Dash on Linux

    Geometry Dash is a music platformer game developed by Robert Topala. The game is available to play on iOS, Android, as well as Microsoft Windows via Steam. In the game, players control a character’s movement and navigate through a series of music-based levels while avoiding obstacles and hazards.

  • How To Set Up a Firewall with UFW in Ubuntu \ Debian

    The Linux kernel includes the Netfilter subsystem, which is used to manipulate or decide the fate of network traffic headed into or through your server. All modern Linux firewall solutions use this system for packet filtering. [...] The default behavior of the UFW Firewall is to block all incoming and forwarding traffic and allow all outbound traffic. This means that anyone trying to access your server will not be able to connect unless you specifically open the port. Applications and services running on your server will be able to access the outside world.