How To Find Redis Logs on Ubuntu
Common Redis log locations: /var/log/redis/redis-server.log, /var/log/redis_6379.log, and /var/log/redis/redis_6379.log
Debian 11 — ruby-bindata — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2021-32823 Upstream summary: In the bindata RubyGem before version 2.4.10 there is a potential denial-of-service vulnerability. In affected versions it is very slow for certain classes in BinData […]
Cómo crear un Slackbot en Python en Ubuntu 20.04
El autor seleccionó el Tech Education Fund para recibir una donación como parte del programa Write for DOnations. Slack es una plataforma de comunicación diseñada para la…
Debian 11 — gnome-screensaver — multiple vulnerabilities (9 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2006-1335 CVE-2007-3920 CVE-2007-6389 CVE-2008-0887 CVE-2009-4641 CVE-2009-4642 CVE-2010-0285 CVE-2010-0414 +1 more Upstream summary: gnome screensaver before 2.14, when running on an X server with AllowDeactivateGrabs and AllowClosedownGrabs enabled, allows […]
How To Automate Backups with object storage
Backing up important data is an essential part of managing any computer infrastructure. In this tutorial, we will build a script around the s3cmd command line tool which can be used to quickly upload data to object storage. We will then use crontab to regularly invoke the backups script and upload files to our Space.
Debian 11 — openarena — multiple vulnerabilities (3 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2010-5077 CVE-2011-2764 CVE-2011-3012 Upstream summary: server/sv_main.c in Quake3 Arena, as used in ioquake3 before r1762, OpenArena, Tremulous, and other products, allows remote attackers to cause a denial of […]
OpenAI Gym: Creating Custom Gym Environments
This guide walks you through creating a custom environment in OpenAI Gym. As an example, we design an environment where a Chopper (helicopter) navigates through the air while avoiding obstacles.
How to Configure sudo and Sudoers on RHEL 7
How to Configure sudo and Sudoers on RHEL 7 On a Red Hat Enterprise Linux 7 system, it is a fundamental security best practice to avoid performing routine administrative tasks directly as the root user. The sudo utility allows designated regular users to execute specific commands — or all commands — with root-level privileges, while […]
AlmaLinux 8 — zstd — vulnerability — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read • Source: AlmaLinux ALSA ALBA-2020:4557 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]
Oracle Linux 8 — container-tools:ol8 security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2021-4154)
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2021-4154 Related CVEs: CVE-2021-20291 CVE-2021-3602 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]
