SMLR Episode 298 Twenty Five Years of GNU

Posted by Tom Lawrence on January 13, 2019 in Show-mp3, Show-ogg |



Show 298

Contact Us:

show (at) smlr.us or the Contact us page

On the Lawrence Systems Forums




Tony Bemus, Tom Lawrence, Phil Porada and Jay LaCroix

Sound bites by Mike Tanner

Phils GitHub


The LawrenceSystems YouTube Channel Where videos

Jay’s Site


Tech News:

The D in SystemD stands for Dammmit… Security holes found in much-adored Linux toolkit



Hacker Giraffe Chromecast Hack



VLC has now reached 3 billion downloads with 0 tool bars



How open source software took over the world



Kdenlive 18.12.1 released

The first dot release of the 18.12 series is out with fixes and usability improvements. The most exciting change is the fix for audio capture when recording from screen or webcam, a handy feature for people doing video tutorials.



“Announcing unlimited free private repos“ Now people can to choose to share their code either with the world or only with Microsoft and 3 other friends.



Syncthing 1.0






NSA to release a free reverse engineering tool



Metasploit Framework 5.0 Released!



RDP Man In The Middle HoneyPot



GoAccess is an open source real-time web log analyzer and interactive viewer that runs in a terminal in *nix systems or through your browser.


Google Demanded That T-Mobile, Sprint Not Sell Google Fi Customers’ Location Data – Motherboard



Shutdown Makes .Gov Websites Insecure Due to Expired TLS Certificates | Digital Trends



January 5, 1984: GNU Project Founded


End of the Year Report – Librem 5 – Things are awesome


Visualizing weak encryption by the team at Viking VPN


Enter this simple bitmap experiment. You take a simple image, encrypt it, and then reapply the headers to make it a valid bitmap image again and look at what the encrypted data looks like visually. When doing this, you are applying no mathematical attacks or simplifications and no cryptanalysis. You’re just looking at the raw encryption with your eyes and seeing if you can see any of the original bitmap in the encrypted code.


Best so far


AES-256-CBC (Cipher block chaining)

AES in CBC mode is the worldwide standard of operation on the web today. The mode has extensive entropy because it uses chunks of encrypted data from the previous block, and appends it to the block that is currently being encrypted. This dramatically increases the entropy and makes discerning the original image through just visual analysis impossible. AES in CBC mode does have the disadvantage of being unable to combat tampering on its own. That is why AES in CBC is often accompanied by some flavor of Hash to do data integrity checks. Today that is mostly the SHA-1 and SHA-2 family of hashes.


AES-256-GCM (Galois Counter Mode)


AES in Galois Counter Mode is the current bleeding edge of encryption the is being used on the web. The biggest advantage that GCM has over CBC is built-in message authentication. AES in Galois Counter Mode tends to be slower than CBC with the same key lengths, so some developers, especially those who operate mobile apps, are hesitant to implement GCM. The concern surrounds the slower processors in mobile devices not being able to handle the encryption/decryption operations in a reasonable amount of time making apps and services seem sluggish.


This problem is improving with the propagation of multi-core processors in smartphones and tablets, allowing the advantages of GCM to shine over CBC.


(Next Page)


Super Tux Kart enters beta phase


“We are now confident that our code is stable enough for a beta release: 0.10-beta1. This means that we will provide our usual set of binaries and installers for all supported platforms. And hopefully that means that many more people will be able to test this current version. Note that we consider this beta very stable, de-facto very close to a release candidate. But we are waiting for another track to be ready to be included, so we are using this time to give more players the opportunity to test (or re-test) our online racing implementation,” says Joerg Henrichs, Project Lead.


The SuperTuxKart developers share the following features that have been added since the last stable release.

  • You can now race against your friends or people world-wide in online races, either in LAN or WAN games.
  • You can either run a server on your own computer, all handled by SuperTuxKart, fire up a stand-alone server, or connect to servers already running.
  • A Raspberry Pi 3 is powerful enough to act as a game server (though you need a server-only binary). We provide several game servers on VPS and Pis that are constantly up.
  • On special so-called ‘ranked servers’ a global ranking of online players is maintained.


Cool Tools

BFG Repo Cleaner


Removes large or troublesome blobs like git-filter-branch does, but faster. And written in Scala


The BFG is 10 – 720x faster than git-filter-branch, turning an overnight job into one that takes less than ten minutes.






hexyl is a simple hex viewer for the terminal. It uses a colored output to distinguish different categories of bytes (NULL bytes, printable ASCII characters, ASCII whitespace characters, other ASCII characters and non-ASCII).




Today we are happy to announce the launch of LiteCLI!

LiteCLI is a user-friendly CommandLine client for SQLite database.


It is based on the popular pgcli and mycli projects.

LiteCLI is written in python using the wonderful prompt-toolkit library. It is cross-platform compatible and it is tested on Linux, MacOS and Windows.


Bash 5.0 released


Chet Ramey




sed is a unix utility for transforming text. It provides a simple programming language for matching and replacing text. Given its limited features, it was never designed as a general purpose programming language. However, it is an extremely versatile tool and can be used to solve problems way beyond the domain of simple text transformation. This is a proof-of-concept implementation of a maze solver written in sed.


The algorithm is a breadth-first search expressed as a cellular automaton. The rules of this automaton are simulated using sed’s substitution command.



“What If Linus Torvalds Gets Hit By A Bus?” – An Empirical Study


Some Windows 7 Installations Deactivated with Update



Check amazon reviews for possible



Linux 5.0 is coming soon



Fedora Updates Chromium with VAAPI Support



Mozilla Firefox 65 Promises Enhanced Security for Linux, Android, and macOS



Debian Enters Freeze State for Buster Release



Tilix 1.8.7 Released



Open source NVIDIA GameStream client



A Science Fiction Terminal Emulator Created for Linux



New Proxmox Youtube series



Cross Generation Gaming YouTube Channel




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