Data encryption at rest is a must-have for any modern Internet company. Many companies, however, don't encrypt their disks, because they fear the potential performance penalty caused by encryption overhead. Encrypting data at rest is vital for Cloudflare with more than 200 data centres across the world. In this post, we will investigate the performance of disk encryption on Linux and explain how w
Guide to perform a full disk encryption of the SD Card of a Raspberry Pi running Raspberry Pi OS View on GitHub LUKS on Raspberry Pi Last updated: February 2021. This guide explains how to encrypt the root partition of an SD Card with Raspberry Pi OS with LUKS. The process requires a Raspberry Pi running Raspberry Pi OS on the SD Card and a USB memory with the same capacity as the SD Card at least
Performance Co-Pilot is a system performance analysis toolkit. Collect Lightweight : Collect performance metrics from your systems efficiently. Distributed : Collate metrics from multiple hosts and a variety of operating systems. Included : Everything you need is already included in the major distributions: Fedora, RHEL, Debian, SUSE, Ubuntu, Gentoo Analyze Analyze systems' performance metrics in
Quick look at Rosetta on LinuxJune 7, 2022June 8, 20226 Comments Yesterday, Apple did release RosettaLinux as part of the macOS Ventura preview. Let’s take a first quick look… Location RosettaLinux is located at /Library/Apple/usr/libexec/oah/RosettaLinux. A rosetta ELF executable is present on that directory. Does it do AoT? No. Rosetta on Linux exclusively operates in JIT mode, at least for the
OpenBSD is an operating system that's famous for its focus on security. Unfortunately, OpenBSD leader Theo states that there are only 7000 users of OpenBSD. So it's a very small but elite group, that wields a disproportionate influence; since we hear all the time about the awesome security features these guys get to use, even though we usually can't use them ourselves. Pledge is like the forbidden
Live-patching security vulnerabilities inside the Linux kernel with eBPF Linux Security Module2022-06-29 This post is also available in 简体中文 and 繁體中文. Linux Security Modules (LSM) is a hook-based framework for implementing security policies and Mandatory Access Control in the Linux kernel. Until recently users looking to implement a security policy had just two options. Configure an existing LSM m
Introduction The Steam Deck is a handheld gaming computer that runs a Linux-based operating system called SteamOS. The machine comes with SteamOS 3 (code name “holo”), which is in turn based on Arch Linux. Although there is no SteamOS 3 installer for a generic PC (yet), it is very easy to install on a virtual machine using QEMU. This post explains how to do it. The goal of this VM is not to play g
The dream of a CLI Time Machine is still alive with httm. httm prints the size, date and corresponding locations of available unique versions (deduplicated by modify time and size) of files residing on snapshots, but can also be used interactively to select and restore files, even snapshot mounts by file! httm might change the way you use snapshots (because ZFS/BTRFS/NILFS2 aren't designed to find
Transparent memory offloading: more memory at a fraction of the cost and power Transparent memory offloading (TMO) is Meta’s data center solution for offering more memory at a fraction of the cost and power of existing technologies In production since 2021, TMO saves 20 percent to 32 percent of memory per server across millions of servers in our data center fleet We are witnessing massive growth i
× Few antiviral products inadequately detect 3proxy as Trojan.Daemonize, Backdoor.Daemonize, etc and many detect 3proxy as a PUA (potentially unwanted program). It may cause browser warning on download page. 3proxy is not trojan or backdoor and contains no functionality except described in documentation. Clear explanation of this fact is given, for example, in Microsoft's article. 0.9.3 Bugfixes:
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