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Software

Screen sharing on Linux: The state of things

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Software

When I want to show something, I can either:

Share a single window, which can sometimes just share the entire screen anyway, or sometimes crash the entire chat application if I hide the window by switching to another workspace.

Share outside of the chat application we’re using

So, I use OBS (which actually has third-party support for wlroots if you’re on Wayland) and stream to my own RTMP server.

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Proprietary Software and Security Leftovers

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Software
Security
  • FilelistCreator is a directory printer for Windows, macOS and Linux

    Many people organize their data into folders to quickly find what they want. The Windows operating system comes with default folders for images, videos, and downloads for example that many users of Windows use.

    Windows does not really provide good easily accessible options to compare the contents of two folders; this is especially the case if root folders contain hundreds of even thousands of files and folders.

  • Ragnarok Ransomware Targets Citrix ADC, Disables Windows Defender

    A new ransomware called Ragnarok has been detected being used in targeted attacks against unpatched Citrix ADC servers vulnerable to the CVE-2019-19781 exploit.

    Last week, FireEye released a report about new attacks exploiting the now patched Citrix ADC vulnerability to install the new Ragnarok Ransomware on vulnerable networks.

    When attackers can compromise a Citrix ADC device, various scripts would be downloaded and executed that scan for Windows computers vulnerable to the EternalBlue vulnerability.

    If detected, the scripts would attempt to exploit the Windows devices, and if successful, inject a DLL that downloads and installs the Ragnarok ransomware onto the exploited device.

  • The Risks and Potential Impacts Associated with Open Source [Ed: DevOps site gives a platform to Black Duck -- a Microsoft-connected FUD arm against FOSS]
  • Security updates for Tuesday

    Security updates have been issued by Debian (iperf3, openjpeg2, and tomcat7), Mageia (ansible, c3p0, fontforge, glpi, gthumb, libbsd, libmediainfo, libmp4v2, libqb, libsass, mbedtls, opencontainers-runc, php, python-pip, python-reportlab, python3, samba, sysstat, tomcat, virtualbox, and webkit2), openSUSE (java-11-openjdk, libredwg, and sarg), Oracle (sqlite), Red Hat (libarchive, nss, and openjpeg2), Scientific Linux (sqlite), SUSE (nodejs6), and Ubuntu (cyrus-sasl2, linux, linux-aws, linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon, linux, linux-aws, linux-oem, mysql-5.7, mysql-8.0, tcpdump, and tomcat8).

  • Hacker Releases 500,000 IoT Credentials

    One of the biggest issues that IoT has is keeping everything secure. Putting devices online is a double-edged sword: it allows benevolent useful services to connect to it, but it can also allow malicious agents to harvest data from it.

    This was proven a few days ago when a list of 500,000 IoT credentials made their way onto the Internet. The list was posted on a hacker forum for anyone to see and use.

  • Apple is attending a meeting in Washington on Monday as a Board Member of the CARIN Alliance on Health Record Sharing

    The CARIN Alliance is meeting with the Office of Management and Budget (OMB) on Monday, January 27, 2020 at 3:00 pm ET in Washington, D.C., and representatives from Apple and Microsoft will be attending via phone. Apple is an official CARIN Alliance Board Member and what transpires on Monday could affect Apple's work positively regarding their Health Record-Sharing Platform beyond their current work with the U.S. Department of Veterans Affairs.

  • Big tech CEOs are learning the art of the filibuster

    But it’s clear that as prevailing sentiment about big tech companies has darkened, tech CEOs see increasingly little value in having meaningful public conversations. Instead, they grit their teeth through every question, treating every encounter as something in between a legal deposition and a hostage negotiation.

    We saw this in 2018, when the New Yorker profiled Mark Zuckerberg. We saw it again last year, when Jack Dorsey went on a podcast tour. At some point this year Tim Cook will probably give a zero-calorie interview to someone, and if it’s a slow-enough news day I’ll write this column for a fourth time.

8 Ways to Take a Screenshot in Linux

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Software

For some vital reason that we need not linger on, you want to share what’s on your desktop with others. What are your options?

These are some of the most prevalent tools on Linux for taking screenshots. If one’s not conveniently available on your distribution of choice, at the very least, you’ll find another in its software center/repositories.

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Also: Emmanuel Kasper: Mark a Screenshot on Linux

MPV 0.32 Released

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Software
Movies

  • MPV 0.32 Released with RAR5 Support & Initial Bash Completion

    MPV media player released version 0.32.0 today with some new features and various bug-fixes.

    MPV 0.32.0 features RAR5 support and initial implementation of bash completion.

  • MPV Player 0.32 Released With RAR5 Support, Bash Completion

    MPV 0.32 is out today as the newest update to this open-source video player based on MPlayer.

    MPV 0.32 adds support for RAR5 compressed content within its libarchive stream implementation. This latest version of RAR supports multi-threaded compression, other compression and decompression speed improvements, and other design improvements.

A big AppStream status update

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Software

What actually was AppStream again? The AppStream Freedesktop Specification describes two XML metadata formats to describe software components: One for software developers to describe their software, and one for distributors and software repositories to describe (possibly curated) collections of software. The format written by upstream projects is called Metainfo and encompasses any data installed in /usr/share/metainfo/, while the distribution format is just called Collection Metadata. A reference implementation of the format and related features written in C/GLib exists as well as Qt bindings for it, so the data can be easily accessed by projects which need it.

The software metadata contains a unique ID for the respective software so it can be identified across software repositories. For example the VLC Mediaplayer is known with the ID org.videolan.vlc in every software repository, no matter whether it’s the package archives of Debian, Fedora, Ubuntu or a Flatpak repository. The metadata also contains translatable names, summaries, descriptions, release information etc. as well as a type for the software. In general, any information about a software component that is in some form relevant to displaying it in software centers is or can be present in AppStream. The newest revisions of the specification also provide a lot of technical data for systems to make the right choices on behalf of the user, e.g. Fwupd uses AppStream data to describe compatible devices for a certain firmware, or the mediatype information in AppStream metadata can be used to install applications for an unknown filetype easier. Information AppStream does not contain is data the software bundling systems are responsible for. So mechanistic data how to build a software component or how exactly to install it is out of scope.

So, now let’s finally get to the new AppStream features since last time I talked about it – which was almost two years ago, so quite a lot of stuff has accumulated!

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The 20 Best Linux Debuggers for Modern Software Engineers

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Development
Software

Debuggers are a group of software used to analyze computer programs. They are very important from a software engineering point of view since they allow us to find problems in our code. There are several kinds of Linux debuggers, including memory debuggers, source debuggers, profilers, and so on. Common usage of these tools includes finding bugs, optimizing codebases, controlling runtime parameters, etc. Today, our editors have compiled a helpful resource outlining 20 of the best debuggers for Linux-based developers and software engineers. Take a look at them below to find out the perfect toolkit for your programming arsenal.

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Joplin: The True Open Source Evernote Alternative

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Software

If you like Evernote, you won’t be too uncomfortable with the open source software, Joplin.

Joplin is an excellent open source note taking application with plenty of features. You can take notes, make to-do list and sync your notes across devices by linking it with cloud services like Dropbox and NextCloud. The synchronization is protected with end to end encryption.

Joplin also has a web clipper that allows you to save webpages as notes. The web clipper is available for Firefox and Chrome/Chromium browsers.

Joplin makes the switch from Evernote easier by allowing importing Evernote files in Enex format.

Since you own the data, you can export all your files either in Joplin format or in the raw format.

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Deepin Music – a beautiful and simple music player

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Software
Reviews
HowTos

I’ve reviewed a smorgasbord of open source music players. But there’s still quite a few I’ve yet to put through their paces. For this review, I’m looking at Deepin Music. The software bills itself as a “beautiful and simple music player that plays local audio. It supports viewing lyrics during playback, playing lossless audio, and playlist customization”.

While the music player is designed for the Deepin Desktop Environment, it’s not tied to that environment. If you’re curious about Deepin Desktop Environment, it was featured in the survey of Best Linux Desktop Environments: Strong and Stable.

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List Of Top 7 Best Linux Firewall Software In 2020

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Linux
Software

Despite of being secure operating system, Linux still needs some mechanism to strength it’s security system. One of the mechanism is firewall which protects Linux system from unauthorized network traffic or access.

Basically, A firewall is a security system which monitors and controls incoming and outgoing network traffic. Firewall can be considered as a set of rules which monitors the data packets movement. It’s a wall between trusted network and untrusted network.

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KeePassXC 2.5.3 and Some Tips

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Software
OSS
Security
  • KeePassXC 2.5.3

    KeePassXC is a community fork of KeePassX, a native cross-platform port of KeePass Password Safe, with the goal to extend and improve it with new features and bugfixes to provide a feature-rich, fully cross-platform and modern open-source password manager.

    KeePassXC currently uses the KeePass 2.x (.kdbx) password database format as its native file format in versions 3.1 and 4. Database files in version 2 can be opened, but will be upgraded to a newer format. KeePass 1.x (.kdb) databases can be imported into a .kdbx file, but this process is one-way.

  • How to manage your entire passwords with KeePassX, single master key for all of them

    Having many accounts on different social media networks, I have to keep trace of different usernames and passwords. Facebook, Instagram, Pinterest, Twitter and chat applications; different login credentials for each one of them. Not to mention the local accounts.

    Due to the struggle that comes with remembering all usernames and passwords, and of course due to loss of many important accounts in the past, I have decided to store my entire login credentials in a database which can be accessed through a single master key.

  • How to fully take control of KeePassX through the command line with pykeepass open source python package

    Having needs on secure personal data management, KeePassX is the software which I have chosen to solve my own problem. Being open source, many developers have written their own libraries from scratch to fully interact with KeePassX from the command line.

    After many hours of research on Github, and a lot of tests on my local environment, pykeepass ended in my toolset. Fully open source and free of charge, this python tool supports interaction with the entire features being integrated on KeePassX; directly from the command line.

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