In a recent article, I saw yet another example of using grep to pull information out of xml, and then to manually look for a field. However, XML is structured, and with XPath, we can pull out exactly what we need.
What is a port? In simple words: a door to a program running in your operating system. Or: application-specific or process-specific software construct used as a numeric identifier of a particular connection between two applications.
Port numbers is a 16-bit unsigned integer that range from 0 to 65535. Applications listen for ports to achieve a successful communication from the outside.
When dealing with a well-known distribution as Ubuntu, there are multiple tricks and features that check for, close or open ports.
So as an alert Linux user, it’s imperative to be aware of probe for open ports in your system, which ones are open by default, closing open ports and allowing exceptions. If not, securities holes and system’s vulnerabilities would be the least of your problems, not to mention bandwidth and resource consuming connections.
VSCodium is a fork of Microsoft Visual Studio Code Editor modified to have full open-source access. The source code for this product can be found on GitHub, where it is licensed under the MIT license and, therefore, will always remain free as long you don’t mind installing extra features via plugins or extensions from third parties like Telemetry transmitting your browsing habits across networks without permission.
Wine is the open-source compatibility layer that allows you to run Windows applications on various operating systems, including macOS and Linux. It translates each system call your application makes into an equivalent POSIX function used across all three platforms – something which can be very helpful if one doesn’t have access or need specific features available only in Microsoft’s OSs!
Another feature of using Wine is the Wine AppDB, a database containing lists of tested and confirmed applications that can be run under Wine. This program saves the trouble for Linux users who want to use Windows-based programs on their UNIX systems, but not all programs will work in this way; some may have strange bugs or crashes when run with no errors beforehand (even though it’s possible).
In the following tutorial, you will learn how to install and configure Wine on Linux Mint 20 LTS release series using the command line terminal by importing the official WineHQ repository and installing the latest stable or next release titled development for those eager to try the latest bleeding-edge version of Wine for your windows compatibility needs.
VirtualBox is a free and open-source hypervisor for x86 and x86-64 virtualization, which the Oracle Corporation develops. The software targets users wishing to create virtual environments for servers and desktops that allow users and administrations to run multiple guest operating systems on a single computer for either testing methods or production use. VirtualBox may be installed on Windows, macOS, Linux, Solaris, and OpenSolaris.
In the following tutorial, you will learn how to install VirtualBox on Linux Mint 20 by importing the official virtual box repository and installing the most up-to-date version using the command line terminal. The extra benefit for users using this method is that you will receive them instantly from the VirtualBox repository when updates drop.
Git is a mature, actively maintained open source project initially developed in 2005 by Linus Torvalds, the famous Linux operating system kernel creator. Git is designed for developers that need a pretty straightforward version control system. Most software is collaborative efforts and sometimes can have hundreds of people with commits working on software development projects. Tracking these commits customarily done in branches in most projects is essential before merging into the master for release. It is easy to review and track down any incorrect commits and revert, leading to a much easier development if anything goes wrong.
The following tutorial will teach how to install Git on Linux Mint 20 LTS release series desktop or headless server using the command line terminal and basic Git commands of everyday use.
LibreWolf is a Firefox fork that focuses on privacy and security by eliminating telemetry, which can be invasive to your personal information, along with increased protection against tracking and fingerprinting techniques and a few security improvements.
In the following tutorial, you will learn how to install LibreWolf Browser on Linux Mint 20 release series. The tutorial will go over importing the official repository and gpg key and updating and removing the browser.
In some cases, you must shut down or reboot your computer to apply updates, install a new application, migrations, or perform other operations. Linux provides the shutdown command to securely stop all the running processes on your server and to notify all the logged-in users about the shutdown operation.
In this tutorial, we will learn how to use the Linux shutdown command-line utility with practical examples.
Hello, friends. In this post, you will learn how to install PIP on CentOS 9 Stream. With this powerful tool, you will be able to install and manage packages made with Python.
In this tutorial, we will show you how to install Pale Moon Browser on Ubuntu 22.04 LTS. For those of you who didn’t know, the Pale Moon browser is a free and open-source web browser, based on Mozilla Firefox focusing on efficiency and ease of use. Pale Moon is available for Microsoft Windows and Linux.
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 the step-by-step installation of the Pale Moon Browser on Ubuntu 22.04 (Jammy Jellyfish). You can follow the same instructions for Ubuntu 22.04 and any other Debian-based distribution like Linux Mint, Elementary OS, Pop!_OS, and more as well.
As the title, this is a spin-off of my last post in which I’ll talk about on Files list view instead of grid view.
But before that, a brief summary of what happened in-between.
Legitimate succession
In my last post we were at the interregnum: Files grid view was temporarily managed by GtkFlowBox. Since then the switch to GTK4 has happened and with it came GtkColumnView to claim its due place.
Despite that, GNOME 42 couldn’t ship the GTK4-based Files app (but it still benefited from it, with the new pathbar and more). Can you guess whose blame it was?
Here’s my (thirty-second) monthly but brief update about the activities I’ve done in the F/L/OSS world.
BeagleBone AI-64 is a single board computer (SBC) powered by a Texas Instruments TDA4VM dual-core Cortex-A72 + hexa-core Cortex-R5F processor which also embeds an 8 TOPS AI accelerator, plus three DSP, as well as plenty of I/Os that makes it ideal for advanced AI industrial applications.
It follows the BeagleBone-AI SBC launched in 2019, but with much higher specs including a 64-bit Arm processor, 4GB RAM, three USB 3.0 ports, an M.2 E-Key socket with PCIe, USB and SDIO, plus the usual expansion headers that keep compatibility with existing BeagleBone cape add-on boards.
It is with great sadness that we write about the death of one of the most significant contributors to Free and Open Source Software, Marina Zhurakhinskaya. Marina was a force for change and leaves a profound legacy of diversity, inclusion, equity and justice. It is impossible to imagine what Software Freedom Conservancy and Outreachy would be like without Marina.
Born in Kyiv, Ukraine, Marina moved to the United States after completing high school. She was accepted at the Massachusetts Institute of Technology after less than a year in the United States and graduated from MIT with a Bachelor’s and Master’s degree in Computer Science. After working at the MIT Lincoln Laboratory for several years, she joined Red Hat, a company focused on open source solutions for the enterprise market. While at Red Hat, Marina began to contribute to the GNOME desktop, working as a developer on GNOME Shell, and then became active in the GNOME community.
The post What Is the Best Way to Filter by Date in R? appeared first on Data Science Tutorials
What Is the Best Way to Filter by Date in R?, Using the dplyr package in R, you can filter a data frame by dates using the following methods.
Knowing how to write API requests and handle their responses is a valuable skill that a developer, data engineer or data analyst/scientist needs to know. In this short blog I share how its possible leverage DuckDuckGo’s instant answer API to create a oracle which can answer (some) of your questions using the httr package and Shiny.
R Consortium talks to Colin Gillespie (from Jumping Rivers) about how a relatively small area deals with increasing membership, what companies are doing to make their data science teams more efficient, and how we might want to look at how governments might view data science.
I noticed that I couldn't read some pages because there was no MIME type in the Gemini response.
The Central Finland Police Department issued a warning on Tuesday regarding a scam seen on several online marketplaces across the country.
Using online trading platforms like tori.fi and Facebook Marketplace, scammers pose as buyers and request to buy products.
Police said sellers are then provided with links to a legitimate-looking delivery service website. However, the site then asks users for bank or debit card information in order to use the service.
It's been a long time—a couple of years—since I last posted a blog entry describing a book I will not write, because mostly I either wrote them or I just stopped having so many wasteful ideas.
But I had a mild case of COVID19 in late May ("mild" belongs in scare quotes; it kicked my ass worse than influenza, and the lingering gastric effects are horrible, but I didn't need antivirals or hospital treatment, so yay vaccines?), and I downed tools and haven't gotten back to work yet, which is annoying to me but continuing an existing project while cognitively impaired is a really bad idea. (You generally end up spending twice as long untangling the mess you created as you spent making it in the first place.) I expect to get back to work later this week: but in the mean time, my Muse made an unexpected and unwanted house call, screamed at me for a while, and left me with an incoherent pile of notes.
The proximate trigger for this car-crash of a story idea was the blog of another author, Rachel Manija Brown, who is currently discovering the joy of Biggles for the first time, and blogging about the books. Biggles is James "Biggles" Bigglesworth, ace pilot and adventurer, the most famous fictional creation of W. E. Johns, writing as Capt. W. E. Johns (although he only made it to Flying Officer in the RAF). They say "write what you know," and Johns clearly knew more than was strictly healthy about dogfighting during the first world war, having been there. So over 45 years or so, he wrote boys' adventure novels—lots of them.
Microsoft has released patches for 55 vulnerabilities on its monthly Patch Tuesday, with the June flaws including three that were rated critical, while the remainder were classified as important.
Nearly half the vulnerabilities detailed allowed for remote code execution, while a fifth allowed escalation of privilege.
Claire Tills, senior research engineer at security firm Tenable, said: "Microsoft addressed CVE-2022-30136, a remote code execution vulnerability in the network file system that can be exploited by an unauthenticated attacker, assigning a CVSSv3 score of 9.8.
"This vulnerability does not affect versions 2 and 3 of Network File System (NFS). In terms of mitigation, Microsoft has proposed disabling NFS version 4.1. However, this may have adverse effects on systems, particularly for organisations that have not applied the May 2022 security update for CVE-2022-26937. Whenever possible, organisations are strongly encouraged to update with the most recent patches."
{loadposition sam08}Tills added that patches for CVE-2022-30190, the zero-day known as Follina that was disclosed in late May, were also included in this month’s release.
In a panel discussion now available online (quotes [1] and links to specific statements [2] below), six digital rights experts analyse current developments on the issue of mass data retention of citizen’s electronic communications data in the EU. The experts criticise the plans of the EU Commission as well as the way governments of the EU member states disregard the rulings of the EU Court of Justice, especially in Belgium, Denmark, Germany, France, Ireland, Portugal and the Czech Republic. The experts elaborate on how a new generation of data retention laws threatens citizens’ fundamental rights and freedoms.
Nostalgia for the past seventy years, with its assertions of neutrality, politics of friendship, and bridge-building, is limited in a tense new world.
The presentation started by describing how Trump was told on election night that the news looked bad. The presentation ended by showing how those attacking the Capitol cited Trump’s lies to justify their actions.
CITIC the Chinese coal mining juggernaut churns out $8bn in revenue from its suite of Australian coal mines, gets government subsidies, but pays almost no tax and actually faxes in its one financial report to regulators. What’s the scam?
The scam is that audit standards are bust. How do they even find a fax machine, and why do they and their auditors PwC still fax (see image below)? Perhaps because faxes fudge and are unreliable – just like the audit profession. PwC Australia has signed off on a set of accounts which shows tax paid by CITIC Australia Pty Ltd last year was just $756,000.
Zionism has not yet murdered Judaism but it has undermined its moral and historical integrity. By intentionally fanning antisemitism, Israel is a major contributor to Jewish insecurity.
This is the second part of a series of blog posts we are publishing, mostly around recent developments with respect to PowerDNS Recursor. The first blog post was Refreshing Of Almost Expired Records: Keeping The Cache Hot.
In PowerDNS Recursor 4.6.0 we introduced DNS over TLS (DoT) support for outgoing connections. Starting with that version, DoT is used by default for (forwarded) connections to port 853 and for a configurable list of authoritative servers. On the client-resolver side there has been developments to make DoT discovery easy. In this post we will discuss the DoT discovery from the resolver to authoritative server perspective. PowerDNS Recursor 4.7.0 has an experimental feature implementing this.
The debate over Bill C-11 – the Online Streaming Act – seems likely to come to an end this week, at least in the House of Commons. Last week, the government introduced a motion to put an end to committee debate and set tight timelines for any further review or discussion. Before it becomes forgotten, this week’s Law Bytes podcast is devoted to the House committee hearings on the bill with clips from a wide range of digital creators, interest groups, and independent experts on the potential Bill C-11 harms to user content.
The episode features (in order of appearance): CRTC Chair Ian Scott, Canadian Heritage Minister Pablo Rodriguez, Morghan Fortier, Oorbee Roy, Justin Tomchuk, JJ McCullough, Jeanette Patel, Scott Benzie, Patrick Rogers, Matt Hatfield, Michael Geist, Rachael Thomas, John Lewis, Stephane Cardin, Monica Auer.