linux Archives - Hosting.Guru

Disk cache on virtual machine (KVM/Proxmox)

Posted on February 5, 2026

Some theoretical stuff about different caching for virtual drives: KVM (and by extension Proxmox, which uses KVM) offers several disk cache modes that control how […]

Benchmark, proxmox

Proxmox – CPU stuck warning

Posted on January 27, 2026

watchdog: BUG: soft lockup – CPU#7 stuck for 22s Annoying bug, makes processes and VMs stuck. Spent several days trying to figure it out. Got […]

Linux, proxmox

Securing ImageMagick installation

Posted on October 14, 2025

Source: https://imagetragick.com/ Read original article, it explains, that specific formats can lead to local command execution. This makes me think and blame it for so […]

Security

Whisper data file retention (Grafana / Graphite)

Posted on January 18, 2024

I have been using stack of Grafana + Graphite + Whisper with collectd daemons on my Linux servers for many many years. After some update […]

Linux

Benchmark i7-7700, Ryzen5 3600, Ryzen7 3700X, i5-13500, Xeon E-2276G, part 1

Posted on December 24, 2023

Greetings, Wizards! Today we are benchmarking 5 servers, that are priced below 50EUR/month. How much power will we get? Which of them has the best […]

Benchmark