Tag Archives: Linux

Mastering User and Permission Management: Fortifying Your Linux Bastion

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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

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

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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

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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

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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

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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

A local root vulnerability in glibc

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Qualys has posted an
advisory for a vulnerability in the GNU C Library related to the
handling of the GLIBC_TUNABLES environment variable:

We successfully exploited this vulnerability and obtained full root
privileges on the default installations of Fedora 37 and 38, Ubuntu
22.04 and 23.04, Debian 12 and 13; other distributions are probably
also vulnerable and exploitable (one notable exception is Alpine
Linux, which uses musl libc, not the glibc).

Updates from distributors are beginning to appear and should be applied on
any systems with untrusted users.
The curious can see the fix applied to glibc in this
patch series.

Source: LWN.net – A local root vulnerability in glibc