today's howtos

posted by Roy Schestowitz on Mar 29, 2023

• Firewalld: Common Firewall Rules and Commands

  Firewalld is a dynamic firewall utility that provides a user-friendly interface for managing firewall rules on Linux systems. It is designed to be easier to use than traditional firewalls like Iptables, while still providing powerful features for securing your network.

• How to configure SOAP web services with Apache Camel

  This article demonstrates how to configure Simple Object Access Protocol (SOAP) web services with the Red Hat build of Apache Camel, Quarkus version. In Apache Camel version 3, the support for the SOAP protocol is still provided by the CXF framework. Therefore, on Quarkus, we will be relying on the camel-quarkus-cxf-soap extension.

  A common REST to SOAP transformation use case

  With the CXF runtime, there is a distinction to make between a SOAP service and the client of a SOAP service.

• How to install PNPM on Ubuntu 22.04 or 20.04

  PNPM is an efficient alternative to NPM and Yarn package managers for Node.js packages, which works differently than them to manage modules. In this article, we learn how to install PNPM on Ubuntu 22.04 or 20.04 Linux systems. What is the PNPM Nodejs, package manager?

• What is the difference between vsftpd and ProFTPd?

  FTP is a standard protocol that is used to transfer files widely, and FTP servers like Vsftpd and ProFTPd provide a way to use that protocol and access plus transfer files stored on a remote server.

• How to prevent fork bombs on your Linux development servers

  Learn how to protect your Linux server from the fork bomb denial-of-service attack with this video tutorial by Jack Wallen.

• How to Create Lightweight Slideshow Presentations in Your Linux Terminal

  Slideshow presentations are an essential and unavoidable part of corporate and academic life thanks to their ability to help you plan and structure the dissemination of information to your audience.

  But snazzy graphics and transition effects can be a distraction from the core information, with the effort you put into making a visually appealing PowerPoint better spent elsewhere.

  Slides is a terminal-based presentation tool for Linux that processes Markdown files—helping you to create and present slideshows without ever leaving your terminal!

• How to List Manually Installed Packages in Ubuntu & Debian

  Keeping track of the packages you have manually installed on your Ubuntu system is essential for managing your software and maintaining a clean system. This article will guide you through the process of listing manually installed packages in Ubuntu using various command-line tools, such as apt, dpkg, and apt-mark.

• Syslog-ng 101, part 13: Updating syslog-ng, syslog-ng 4

  Version 4 of syslog-ng is now available. The good news is that it is fully backwards compatible. If the version string in your configuration is set to a 3.X version, it will work as expected even after updating to version 4. Of course you might run into corner cases, but I had no problems even with complex configurations. Today, we learn about updating syslog-ng, and some of the new features of syslog-ng 4.

  Or you can read the rest the tutorial as a blog at: https://www.syslog-ng.com/community/b/blog/posts/syslog-ng-101-part-13-updating-syslog-ng-syslog-ng-4

• Peter Czanik: Syslog-ng 101, part 13: Updating syslog-ng, syslog-ng 4

  This is the 13th part of my syslog-ng tutorial. Last time, we learned about sending log messages to Elasticsearch. Today, we learn about updating syslog-ng, and some of the new features of syslog-ng 4.

  https://youtu.be/205eMGS51XU

  Type support in syslog-ng 4

  Version 4 of syslog-ng is now available. The good news is that it is fully backwards compatible. If the version string in your configuration is set to a 3.X version, it will work as expected even after updating to version 4. Of course you might run into corner cases, but I had no problems even with complex configurations.

  The major new feature of syslog-ng 4 is type support. When using the JSON and PatternDB parsers, syslog-ng stores the type information alongside name-value pairs. You can also set type information using rewrite rules.

• How to Quickly Merge PDF Files on Linux

  PDF files are a common part of digital life so at some point you might want or need to merge multiple PDF files into one, single document.

• How To Install CoreFreq on Ubuntu 20.04 | 22.04 LTS

  CoreFreq is a CPU monitoring tool that provides detailed information about your processor's performance, including real-time temperature readings, clock speeds, and utilization statistics.

• 12 Apk Commands in Alpine Linux Package Management

  Alpine Linux is a lightweight, security-oriented Linux distribution designed for routers, firewalls, VPN gateways, and servers. It uses the musl libc library and BusyBox utilities, making it small and efficient.