Weekly Shaarli

All links of one week in a single page.

Week 28 (July 12, 2021)

Raspberry Pi 1U Server
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Looking Glass

VGA PCI Pass-through KVM optimized for low latency and performance.

Mitmproxy 7

Among other improvements, mitmproxy now supports TLS-over-TLS, HTTP/2 - HTTP/1 interopatibility, and host header-based proxying.

`time(1)` and CPU frequency scaling

With dynamic CPU scaling, the time a CPU took to complete a task and how much work the CPU did have to do, are two different things.

Microsoft Puts PCs in the Cloud with Windows 365
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Microsoft introduces Windows 365, its virtual desktop product.

"But What if We Just Use Encryption?" – Practical GDPR for CTOs
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For data protected by the GDPR, encryption is not sufficient for processing data.

MyDumper
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MySQL backup tool.

Harvester

Harvester is a bare metal HCI solution by SUSE.

Proxmox VE 7.0
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This week, version 7 of the Proxmox Virtualization Environment landed. It is already based on the upcoming Debian 11, and among other improvements, it supports using BTRFS and Ceph version 16.2.

Video, Slides, and References: USENIX LISA2021 Computing Performance: On the Horizon

In his LISA21 talk, Brendan Gregg gives an overview and makes some predictions on server performance.

BGP in a Nutshell

This blog post gives a brief introduction to the Border Gateway Protocol (BGP).

Ausfall am 29.06.2021

Post-Mortem über einen Incident mit dem Ceph-Cluster bei Uberspace, verursacht durch eine Spannungsschwankung.

Open Insulin Foundation
Ghidra
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Ghidra is a software reverse engineering (SRE) framework by the NSA.

AmIUnique

»Learn how identifiable you are on the Internet.«

Virtuozzo Linux 8.4

Virtuozzo Linux is another alternative to RHEL/CentOS 8.4.

First Complementary Vertical Organic Transistors Reach GHz Speeds
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»A team at the Technische Universität Dresden has developed the first implementation of a complementary, vertical organic transistor technology.«

Japan Has Shattered the Internet Speed Record at 319 Terabits per Second
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What Wrent Wrong?

Poul-Henning Kamp on why it's time for governments to establish IT accident investigation boards.

Let’s Build a Simple Database

»Writing a SQLite clone from scratch in C.«

Rustpad
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»Rustpad is an efficient and minimal open-source collaborative text editor based on the operational transformation algorithm.«

How to Backup KVM Virtual Machines Using virt-backup.pl Script
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In this post, the author gives a short introduction to using virt-backup for KVM backups.

TCP Fast Open? Not So Fast!
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TCP Fast Open allows the initial SYN packet to contain data. This post shows what practical challenges TFO is currently facing.

25 Gigabit Linux Internet Router PC Build
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In this blog post, the author introduces his custom build 25 Gbit/s Internet router.

mboxviewer
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»Simple mbox viewer.«

rpm-ostree

rpm-ostree is a hybrid image/package system allowing atomic upgrades/rollbacks.

OpenSearch 1.0

OpenSearch, Amazon's fork of Elasicsearch and Kibana, is now generally available.

Proxmox Backup Server 2.0
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Like Proxmox VE, the new release of Proxmox Backup Server is based on the upcoming Debian Bullseye and includes Kernel 5.11 as well as ZFS 2.0.

Installing SCO UNIX

Two-part blog series on installing SCO UNIX.

MySQL/ZFS Performance Update
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Percona finds that MySQL on ZFS is now on par with ext4 performance-wise for their test use case.

Sovereign Cloud Stack (SCS)
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The Sovereign Cloud Stack (SCS) is the open-source base for the federated data infrastructure project Gaia-X.

OpenVAS

»OpenVAS is a full-featured vulnerability scanner.«

XCP-ng

XCP-ng is an open-souce Hypervisor based on XenServer.

Nextcloud Hub 22
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Version 22 of Nextcloud Hub is now available. Some of the improvements: User-defined groups, integrated chat and task management, PDF document signing, and integrated knowledge management.

Upgrading a FreeBSD 12.2 jail to FreeBSD 13 using `mkjail`

Dan Langille on upgrading jails with mkjail without a jail manager being involved.

High Availability With OpenBGPD on OpenBSD 6.9
PostgreSQL, Memory and the Cloud

The author explains how Postgres out-of-memory situations are handled differently on cloud instances.

CMake Part 1 - The Dark Arts
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Introduction to CMake.