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Android Leftovers

More in Tux Machines

How to Install Cinnamon Desktop in Arch Linux

Cinnamon is the default desktop environment for Linux Mint. This quick guide explains the steps to install the Cinnamon desktop environment in Arch Linux. Read more

Kali Linux’s First Release in 2021 Ships with Xfce 4.16, Linux 5.10 LTS, and New Hacking Tools

The first biggest change is the inclusion of the latest Xfce 4.16 desktop environment, which is used by default in the Kali Linux images. This change alone is so huge that you'll want to download the Kali Linux 2021.1 release right now and install it on your personal computer. The second biggest change in Kali Linux's first 2021 release is the inclusion of new tools for ethical hacking and penetration testing, such as Airgeddon for auditing wireless networks, AltDNS for generating and resolving permutations, alterations and mutations of subdomains, as well as Arjun HTTP parameter discovery suite. Read more

today's leftovers

  • Tempted But the Truth is Discovered | LINUX Unplugged 394

    After all these years, what's made us stick with Linux? Plus the commitment just made by the GNOME team, and some new tools that are changing our game.

  • mintCast 355 – Deferred Update

    First up, in our Wanderings, Mike shreds a new axe, I’m more and more impressed by Proton, Joe has frozen joints, Moss is going to be rich someday, Tony Hughes gets immunities, and Josh panics with a crowbar.  Then, in the News, so much controversy, Linux on Mars, VLC on the moon, Mint and mintCast make the cut, and more

  • Tetrate Says Its Istio Distribution Is Easier to Use Than the Upstream Version

    The startup, one of Istio's top contributors, has also launched an online community for Istio and Envoy enthusiasts to surface problems, brainstorm solutions.

  • New service:

    Hello there, I would like to announce a new service that I have just configured for Debian: debuginfod is a new-ish project whose purpose is to serve ELF/DWARF/source-code information over HTTP.  It is developed under the elfutils umbrella.  You can find more information about it here: In a nutshell, by using a debuginfod service you will not need to install debuginfo (a.k.a. dbgsym) files anymore; the symbols will be served to GDB (or any other debuginfo consumer that supports debuginfod) over the network.  Ultimately, this makes the debugging experience much smoother (I myself never remember the full URL of our debuginfo repository when I need it). If you would like to use the service, and if the service supports the Debian distribution you are using (see below), all you have to do is make sure that the following environment variable is set in your shell:   DEBUGINFOD_URLS=""; Currently, the elfutils and GDB packages in unstable and testing have native support for using debuginfod.  I will soon propose a change to the elfutils package in order to make it be configured with our debuginfod instance by default, so that users will be able to use the service transparently. For now, is serving debug information symbols for the following Debian distributions:   - unstable   - testing   - testing-proposed-updates   - stable   - stable-backports   - proposed-updates In the near future I intend to expand this list and include the debuginfo stored at as well. Setting up a debuginfod service for Debian has been on my TODO list for some time now, and I finally got enough time & resources to do it.  I would like to thank a few people for their feedback and help:   - Héctor Orón (zumbi)   - Jonathan Carter (highvoltage)   - Paul Wise (pabs) Last, but not least, you can find a wiki page about our service here: Thanks,

  • Debian Launches A Debuginfod Server For Smoother Debugging Experience

    Debian is the latest major Linux distribution deploying a Debuginfod web server so that ELF/DWARF/source-code information can be supplied via HTTP to clients on-demand when debugging.  Introduced last year was Debuginfod with GNU Binutils 2.34 for distributing debugging information / source code on demand. Readelf and objdump utilities can query connected Debuginfod servers for source files / data based on a build ID. Debuginfod support was later integrated into the GNU Debugger too (GDB 10.1). The effort was led by Red Hat engineers while now Debian is getting in on this practical feature too. 

  • Introducing veb(4) - a new Virtual Ethernet Bridge

    In this commit, David Gwynne (dlg@) adds a new veb(4) driver to the tree. David's goal is to replace the old bridge(4) driver: [...]

  • GNU poke 0.91 pre-released in

    GNU poke ( is an interactive, extensible editor for binary data.  Not limited to editing basic entities such as bits and bytes, it provides a full-fledged procedural, interactive programming language designed to describe data structures and to operate on them. 

  • Null MX - We do not accept email here!

    By creating a NULL MX RECORD for a domain name which isn't meant to receive email, the domain will clearly state that it doesn't accept any email, period. Anyone attempting to send email to that domain will then immediately received a notification saying you cannot send email to that domain.

  • RFC7505 Means Yes, Your Domain Can Refuse to Handle Mail. Please Leave Us a TXT If You Do.

    If you do not want a domain to receive any mail, there is a way to be at last somewhat civil about it. There's a different DNS trick for that.

Programming Leftovers

  • Python While Loop: Intro and Explanation - Make Tech Easier

    Coding is (of course) about building things to help others. However, creating programs and software has more to do with automating repetitive or complex tasks than anything else. Python’s while loop lets you repeat suites of code to automate many actions at once. In this post, we show you how to use Python’s while loop. First, let’s talk about what the while loop does and where it’s best used.

  • Pattern dispatch | Playing Perl 6 b6xA Raku

    The ever helpful raiph wished for RakuAST in an answer to a question about pattern matching like it is done in Haskell. It was proposed to use MMD to solve this problem. Doing so and getting a fall-through default was unsolved. Since dispatch simply is pattern matching we just need to do some extra work. In a nutshell, the dispatcher gets a list of functions and a list with arguments. The first function that takes all arguments wins.

  • Clang LTO Support Merged For Linux 5.12 Including ARM64 + x86_64

    Pop open the champagne as the in-development Linux 5.12 kernel will be able to support link-time optimizations (LTO) in conjunction with the LLVM Clang compiler on not only AArch64 (64-bit ARM) but also x86_64. Last week I noted that Clang LTO support had been submitted but at the time was not clear if Linus Torvalds was willing to land it given his past comments around LTO'ing the kernel. With that pull request it was also just for AArch64 with the x86_64 support not yet squared away. Years ago Linus Torvalds was unconvinced by GCC LTO support for the kernel and that code ultimately was never mainlined. With Clang the benefits are much the same in allowing for potentially greater performance by allowing the code compiler to apply optimization passes at link-time on the entire kernel rather than being limited on a per source file basis. LTO also has the possibility of providing greater space savings too. Plus in the case of Clang, LTO for the kernel is also needed to support Control Flow Integrity (CFI) for the kernel.

  • add -ftrivial-auto-var-init and variable attribute "uninitialized" to gcc

    This is the first version of the complete patch for the new security feature for GCC: Initialize automatic variables with new first class option -ftrivial-auto-var-init=[uninitialized|pattern|zero] and a new variable attribute “uninitialized” to exclude some variables from automatical initialization to Control runtime overhead.

  • Proposed GCC 12 Security Option Would Auto Initialize Automatic Variables - Phoronix

    An Oracle engineer has proposed introducing a new "-ftrivial-auto-var-init=" option for the GCC compiler that would allowing initializing automatic variables with either a pattern or zeroes in the name of security. In trying to fight security issues stemming from uninitialized memory disclosure, the suggested -ftrivial-auto-var-init==zero would initialize automatic variables with zeroes unless the new "uninitialized" variable attribute was used on a particular variable for overriding the behavior.

  • An incomplete list of complaints about real code

    A couple of weeks ago, I got bored and decided to come up with a list of things that have bothered me when trying to run software to get things done. These might be reliability concerns, or development issues, or really anything else that bothered me at the time. This was actually pretty illuminating.

    I would actually recommend other people try it with their own annoyances and see how things stack up. It was interesting to look at the rows to see which choices were particularly bad because they hit so many of them, and then to look at the columns to see how often they showed up regardless of the language or environment.

  • Call for testing: OpenSSH 8.5

    OpenSSH 8.5p1 is almost ready for release, so we would appreciate testing on as many platforms and systems as possible. This is a bugfix release.

  • Four kinds of data anomalies

    Datasets sometimes contain perfectly well-formed items that really don't belong with the other items in their field. In my data auditing work, anomalous items are typically out of range, out of place, out of match or out of date. Below are some real-world examples.

  • How to make Eclipse run with a custom JDK on Mac |

    You might want to have more than one JDK on your Mac and run different programs with different JDK versions as it is with me. The easiest and safest way I’ve found is as follows.