today's howtos
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Ricardo García ☛ Geek Blight - The Dark Side of the Blog
If you’re browsing this blog from a device in which the preferred theme is dark you may notice the blog now has a dark theme. This is an idea that had crossed my mind multiple times in the past months but it’s not until very recently that I decided to take a serious look at how to do it. My decision to finally tackle the issue was motivated by “contradicting” reports I read online. Some people complain about how the lack of a light mode option is an accesibility or usability issue for them, making it impossible to read a long text. For other people, it’s the other way around. The only proper solution to this is to have both a dark mode and a light mode and use the one preferred by the user, which is what this blog does now. No JavaScript was harmed (or used) in the process, so lets take a quick look at how to achieve this. In other words, follow me in this journey to the basic stuff from a non-web developer point of view.
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RIPE ☛ The State of Reverse DNS
Most people know DNS for the part that resolves a domain name to an IP address. Reverse DNS, as the name suggests, works the other way around, and is generally less talked about. The question is, when people do implement reverse DNS, are they taking steps to keep it secure?
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Matthew J Ernisse ☛ Distributed Block List From Log Data With OpenBSD pf.
I suspect most folks are familiar with fail2ban and so the first question would probably be 'why not use fail2ban'. Well I already have fairly tight firewall rules on my Linux machines and critically they are also behind OpenBSD firewalls which provide further protection; however, I have several services that I provide to the Internet at large that need to be exposed by default. For those services I would like to implement a rolling block list that I can distribute to all of the edge firewalls so if one system is probed, all of the potential ingress points are closed. Since the vast majority of the attempts these days come from AWS, GCP, and DigitalOcean the manual process I've been using of blocking the entire assigned supernet of the IP that is probing me is entirely too broad.
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TecMint ☛ How to Find Top 10 IPs Accessing Apache or Nginx
One good thing in identifying the top IP addresses accessing your web server is the existence of access log file(s) that store information about every access activity that happens on the server.
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Ubuntubuzz ☛ How To Make Thunderbird Show Email Replies Like Gmail
Thunderbird is the flagship Ubuntu email client and the free/libre open source software one for all major operating systems. by default, Thunderbird does not show sender replies and you might not like it. If you prefer Gmail-like ways to view replies including yours in every mail conversation, you can use the add-on Conversations. We will show how below.
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idroot
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ID Root ☛ How To Install KVM on Fedora 39
In this tutorial, we will show you how to install KVM on Fedora 39. KVM (Kernel-based Virtual Machine) is a virtualization solution built into the GNU/Linux kernel that allows you to create and run virtual machines.
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ID Root ☛ How To Install OpenLDAP on Fedora 39
In this tutorial, we will show you how to install OpenLDAP on Fedora 39. OpenLDAP, or Open Lightweight Directory Access Protocol, is a command-line-driven software that allows IT administrators to build and manage an LDAP directory. It is a specialized database optimized for reading, browsing, and searching, and it supports sophisticated filtering capabilities.
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ID Root ☛ How To Install OnlyOffice on Debian 12
In this tutorial, we will show you how to install OnlyOffice on Debian 12. ONLYOFFICE is a comprehensive office suite that offers a wide range of productivity tools for document editing, project management, CRM, and more.
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Net2 ☛ How To Fix Poor Sound Quality on Bluetooth Headset on Ubuntu 22.04
When using a Bluetooth headset with Ubuntu 22.04, you may experience subpar sound quality. Common reasons include the audio profile in use or Bluetooth service issues. In this guide, we’ll provide solutions to enhance your Bluetooth headset’s sound quality on Ubuntu 22.04.
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LinuxTuto ☛ How to Install Dolibarr ERP on Debian 12
Dolibarr ERP is an open-source software suite designed to help businesses and organizations manage various aspects of their operations.
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How to install KVM on Oracle GNU/Linux 9?
Kernel-based Virtual Machine (KVM) is simple to install on Oracle GNU/Linux 9 because it is an RHEL-based GNU/Linux distro, hence the steps for setting and operating KVM will be the same as any other similar OS such as AlmaLinux.