The National Environmental Satellite, Data, and Information Service (NESDIS) has reduced its operating costs for managing Red Hat Enterprise Linux (RHEL) by 35% by transitioning from Puppet Enterprise to Ansible Tower. In this "how we did it" video, Systems Engineer Michael Rau explains the rationale behind this migration, shares useful tips, and discusses the experiences gained from the transition from […]
Good day everyone. I will start with a backstory about what prompted me to conduct this research, but first, I must warn you: all practical actions were performed with the consent of management structures. Any attempt to use this material for unauthorized access to restricted areas is a criminal offense. It all began when I was cleaning my desk, I […]
The release of the Firefox 76 web browser and the mobile version Firefox 68.8 for the Android platform has taken place. Additionally, an update for the long-term support branch 68.8.0 has been created. Soon, the Firefox 77 branch will enter beta testing, with a release scheduled for June 2. Key innovations: The capabilities of the built-in Lockwise extension have been expanded, offering the 'about:logins' interface for […]
A Canonical employee, promoting Ubuntu on WSL and Hyper-V, posted a video of Microsoft Word and Excel running on Ubuntu 20.04 without using Wine or WSL. The launch of MS Word was characterized as follows: 'The program runs quite quickly on a system with an Intel Core i5 6300U processor with integrated graphics. This is not launched through Wine; it’s not a remote desktop […]
Chapters 1, 2, 3 Getting Started 3.1 Overview 3.2 Prerequisites 3.2.1 Downloading the ns-3 Release as a Source Archive 3.3 Downloading ns-3 Using Git 3.3.1 Downloading ns-3 with Bake 3.4 Building ns-3 3.4.1 Building with build.py 3.4.2 Building with Bake 3.4.3 Building with Waf 3.5 Testing ns-3 3.6 Running the Script 3.6.1 Arguments […]
Chapters 1, 2, Chapter 3 4 Concept Overview 4.1 Key Abstractions 4.1.1 Node 4.1.2 Application 4.1.3 Channel 4.1.4 Net Device 4.1.5 Topological Helpers 4.2 The First ns-3 Script 4.2.1 Boilerplate Code 4.2.2 Plug-in Modules 4.2.3 ns3 Namespace 4.2.4 Logging 4.2.5 Main Function 4.2.6 Using Topological Helpers 4.2.7 Using Application 4.2.8 Simulator […]
Chapters 1, 2, Chapter 3, Chapter 4 5 Configuration 5.1 Using the Logging Module 5.1.1 Logging Overview 5.1.2 Enabling Logging 5.1.3 Adding Logging to Your Code 5.2 Using Command Line Arguments 5.2.1 Overriding Default Attribute Values 5.2.2 Capturing Your Own Commands 5.3 Using the Tracing System 5.3.1 ASCII Tracing Parsing ASCII Traces 5.3.2 PCAP Tracing Chapter 5 […]
Mozilla has released the stable version of Firefox 76 for desktop operating systems Windows, macOS, and Linux. The new release comes with bug fixes, security patches, and new features, the most interesting of which are enhancements to the Firefox Lockwise password manager. The highlight of Firefox 76 is the new features added to the built-in Firefox Lockwise password manager (available at about:logins). Firstly, […]
The Python Software Foundation, which oversees the development of the reference implementation of the Python programming language, has announced plans to migrate the CPython bug tracking infrastructure from bugs.python.org to GitHub. The code repositories were transitioned to GitHub as the primary platform back in 2017. GitLab was also considered, but the decision in favor of GitHub was based on it being the more […]
On November 27, 1923, American radio amateurs John Reinartz (John L. Reinartz, 1QP) and Fred Schnell (Fred H. Schnell, 1MO) conducted two-way transatlantic radio communication with French amateur operator Léon Deloy (Léon Deloy, F8AB) on a wavelength of about 100 m. This event had a significant impact on the development of the global amateur radio movement and shortwave communication. One of […]
Let me explain the title of the article right away. Initially, it was planned to provide good, reliable advice on speeding up the use of reflection with a simple but realistic example, but during benchmarking, it turned out that reflection does not work as slowly as I thought, while LINQ works slower than I could have imagined. In the end, I also made an error in the measurements… Details of this […]
Recently, David O'Brien launched his own company Xirus (https://xirus.com.au), focusing on Microsoft Azure Stack cloud products. They are designed for the consistent creation and deployment of hybrid applications in data centers, edge locations, remote offices, and the cloud. David trains individuals and companies on everything related to Microsoft Azure and Azure DevOps (formerly VSTS) and up to […]