Showing headlines posted by bob

This is the sixth in a series of articles about features that first appeared in a version of Python 3.x. Python 3.5 was first released in 2015, and even though it has been out for a long time, many of the features it introduced are underused and pretty cool. Here are three of them. The @ operator The @ operator is unique in Python in that there are no objects in the standard library that implement it! It was added for use in mathematical packages that have matrices. read more

This tutorial shows you how to install Drupal 9 CMS on Fedora 34. We will use Apache as the webserver and MariaDB for the database.

In this article, I will show you the commands to create an SNS Topic, Subscription, confirm, and delete the Subscription on Linux shell using aws-cli.

This is the fifth in a series of articles about features that first appeared in a version of Python 3.x. Python 3.4 was first released in 2014, and even though it has been out for a long time, many of the features it introduced are underused and pretty cool. Here are three of them. read more

webERP is a free, open-source, and complete web-based accounting and business management system. This tutorial will show you how to install webERP with Apache and Let's Encrypt SSL on CentOS 8.

Managing a VPC and other resources like Subnet, Route Table, Internet Gateway from the terminal using aws-cli can be a bit confusing if you are not good at VPC. In this article, we will create a VPC with 2 Subnets, Route Table, and Internet Gateway, these subnets will be public subnets.

This is the fourth in a series of articles about features that first appeared in a version of Python 3.x. Python 3.3 was first released in 2012, and even though it has been out for a long time, many of the features it introduced are underused and pretty cool. Here are three of them. read more

CTparental is a free and open-source parental control tool used to control computer usage or internet browsing. In this post, we will show you how to install CTparental on Debian 10.

Chrony is the default Network Time Protocol (NTP) server in CentOS 8 operating system. It is a replacement for the old Ntpd. In this tutorial, I will show you how to install and use Chrony on CentOS 8 server.

Adlink’s “NEON-2000-JNX” embedded C-mount camera runs an Ubuntu-based “EVA” stack on a Jetson Xavier NX and provides GbE, USB Type-C with DP, and support for 6x sensors up to an 8MP Sony IMX334. In July of last year, Adlink unveiled a NEON-2000-JT2 Series embedded machine vision camera that came with a choice of a Nvidia’s […]

Ingress is a Kubernetes object that manages external access to the services in the Kubernetes Cluster. In this article, we will see the installation of the Nginx Ingress Controller using Helm on the Kubernetes Cluster set up using Kops.

In an age where hacker attacks are a daily occurrence, it is of fundamental importance to minimize the attack surface. Containerization is probably the best way to isolate a service provided for the public, but this is not always possible for several reasons. For example, think of a legacy system application developed on systemd. This could make the most of the capabilities provided by a systemd-based operative system and it could be managed via a systemd unit, or it could automatically pull updates using a systemd timer, and so on. For this reason, we are going to explain how to improve the security of a systemd service.

Massive ransomware attacks to the left of us, supply chain attacks to the right of us, but the Linux Foundation is answering the president's call for greater software security.

Memcached is an open-source and high-performance memory caching system. It stores data in memory and is being used for optimizing dynamic websites. In this guide, I will explain how to install Memcached on CentOS 8 operating system.

You can perform operations on SQS like list, create, delete Queues and send messages, receive messages from your terminal using aws-cli. In this article, we will see the commands to perform these kinds of operations.

This article describes the extension of the Fedora 32 user count mechanism to rpm-ostree based systems. It also provides tips for opting out, if necessary. How Fedora counts users Since the release of Fedora 32, a new mechanism has been in place to better count the number of Fedora users while respecting their privacy. This […]

Nginx is a free, open-source and one of the most popular webserver around the world. It can also be used as a reverse proxy, load balancer and HTTP cache. In this tutorial, I will show you how to set up a highly available Nginx web server with KeepAlived on CentOS 8.

This the third article in a series about features that first appeared in a version of Python 3.x. Some of those Python versions have been out for a while. For example, Python 3.2 was first released in 2011, yet some of the cool and useful features introduced in it are still underused. Here are three of them.

In my introduction to Autotools, I demonstrated how to manage building and packaging code with GNU Autotools. It's a robust and common platform that integrates easily into many packaging systems, including RPM, APT, pkgsrc, and more. Its syntax and structure can be confusing, but luckily there are alternatives, including the open source CMake framework.

Learn more about PipeWire—Fedora Linux's new default audio and video daemon—in this interview with it's creator Wim Taymans.