Flatpak 1.12 improves Steam support and fixes a serious vulnerability

Flatpak 1.12 brings a couple of important changes. The first is support for better control of sub-sandboxes. This feature was already being used by the Flatpak version of the Steam client, so the developers of the package format and its corresponding utility have decided to enhance it in order to make it easier to handle.

Configuration of UFW Firewall Rules

UFW stands for Uncomplicated Firewall, and is a user-friendly frontend for managing iptables (netfilter) firewall rules. It is the default firewall configuration tool for Ubuntu and is also available for other popular Linux distributions such as Debian and Arch Linux. Prerequisites The user running UFW commands must be a sudo user. Listing UFW Rules One of the most common tasks when… Continue reading Configuration of UFW Firewall Rules

Architecture of Gamerzilla

Gamerzilla is an open source game achievement system. The design considered both open source and commercial games. You can run your own Gamerzilla server, use one provided by a game store, or even distributions, or other groups could run them. Where you buy the game doesn’t matter. The achievement data uploads to your Gamerzilla server.… Continue reading Architecture of Gamerzilla

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Fedora 34 Workstation Basic Configuration

After explaining in detail how to install Fedora 34 Workstation, we are going to finish the matter with the installation and configuration of the codecs for multimedia support, the usual compressors and some important but dispensable components depending on the case, such as Steam and the official driver of NVIDIA. Fedora is a fairly pure… Continue reading Fedora 34 Workstation Basic Configuration

Modem MACs and how ISPs view them

MAC address only exists in Ethernet networks or something that emulates it.Ethernet (Level 2) networks are connected with Level 3 devices called routers.MAC address is only visible inside of one Ethernet network, so anyone on the other side of the router doesn’t know your MAC address. Both DOCSIS (cable) modem and DSL modem can run… Continue reading Modem MACs and how ISPs view them

OpenSSH 8.5 with UpdateHostKeys, fixes and more

After five months of development, the release of OpenSSH 8.5 is presented along with which the OpenSSH developers recalled the upcoming transfer to the category of obsolete algorithms that use SHA-1 hashes, due to the greater efficiency of collision attacks with a certain prefix (the cost of the collision selection is estimated at about 50… Continue reading OpenSSH 8.5 with UpdateHostKeys, fixes and more