OpenSSH 9.5 released

OpenSSH 9.5 is out. Significant changes include a transport-level ping
mechanism and keystroke timing obfuscation:

This attempts to hide inter-keystroke timings by sending
interactive traffic at fixed intervals (default: every 20ms) when
there is only a small amount of data being sent. It also sends fake
“chaff” keystrokes for a random interval after the last real
keystroke. These are controlled by a new ssh_config
ObscureKeystrokeTiming keyword.



Source: LWN.net – OpenSSH 9.5 released

Mastering User and Permission Management: Fortifying Your Linux Bastion

In the vast landscape of operating systems, Linux stands as a bastion of flexibility and security. Central to its robust security model is the meticulous management of user accounts and permissions. This article delves into the intricacies of managing user accounts and permissions in Linux, illuminating the pathway towards securing your system against unauthorized access and potential misuse.

Source: LXer – Mastering User and Permission Management: Fortifying Your Linux Bastion

DragonFlyBSD's HAMMER2 File-System Seeing New Improvements, Initial Recovery Support

When it comes to the BSD operating systems, DragonFlyBSD’s HAMMER2 is one of the most interesting innovations. HAMMER2 supports online deduplication, clustering, multiple mountable file-system roots, snapshots, compression, encryption, extensive checksumming, and other features. Over the past decade it’s evolved quite nicely and in recent days has seen further enhancements…

Source: Phoronix – DragonFlyBSD’s HAMMER2 File-System Seeing New Improvements, Initial Recovery Support

Linux Patches Allow Changing Hibernation Compression Format For Better Performance

Currently when hibernating a Linux system LZO compression is used for preserving the memory contents while a new patch series posted today by Qualcomm allow for changing out the compression API used and makes LZ4 a new option during Linux hibernation…

Source: Phoronix – Linux Patches Allow Changing Hibernation Compression Format For Better Performance

Say (an encrypted) hello to a more private internet.

As web users, what we say and do online is subject to pervasive surveillance. Although we typically associate online tracking with ad networks and other third-party sites, our online communications travel across commercial telecommunication networks, allowing these privileged entities to siphon the names of the websites we visit and monetize our browsing history for their […]

Source: LXer – Say (an encrypted) hello to a more private internet.

How to Install and Configure PHP OPcache on Ubuntu 22.04

OPcache is a PHP module used for caching pre-compiled script bytecode in the shared memory. It can speed up your website up to 3 times. Whether you are running a simple blog, a complex web application, or an e-commerce site, Opcache can significantly enhance your application’s responsiveness by eliminating the need for repetitive PHP script compilation.

Source: LXer – How to Install and Configure PHP OPcache on Ubuntu 22.04

How to Install WordPress with Nginx, MariaDB and PHP on Ubuntu 22.04

In this guide, we’ll walk you through the installation process of WordPress using the LEMP Stack (comprising Nginx, MariaDB, and PHP) on the Ubuntu 22.04 Jammy Jellyfish operating system. We’ll also provide detailed steps to help you set up the necessary databases and complete the front-end Web UI installation efficiently and effectively.

Source: LXer – How to Install WordPress with Nginx, MariaDB and PHP on Ubuntu 22.04

[$] Linux ecosystem contributions from SteamOS

The SteamOS Linux
distribution is focused on gaming, naturally, but the effort to build it
has resulted
in contributions to multiple areas in the Linux ecosystem. Alberto Garcia
has been working on SteamOS and came to Bilbao, Spain to describe some of those
contributions at Open Source Summit Europe 2023. There are some obvious
areas where a gaming-focused OS might contribute upstream, such as
graphics, but the talk showed contributions in several other areas as well.

Source: LWN.net – [$] Linux ecosystem contributions from SteamOS