Clockwork: Tuning Tools for AMD Graphics Chips
CoreCtrl and RadeonTop monitor the utilization and clock frequency of AMD chips with the potential for boosting performance.
Debian 11 — k4dirstat — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 17 August 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2014-2528 Upstream summary: kcleanup.cpp in KDirStat 2.7.3 does not properly quote strings when deleting a directory, which allows remote attackers to execute arbitrary commands via a ' (single […]
Ubuntu 20.04 — ark — multiple vulnerabilities (2 CVEs) — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 17 August 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-4482-1 Related CVEs: CVE-2020-24654 CVE-2020-16116 Upstream summary: Fabian Vogt discovered that Ark incorrectly handled symbolic links in tar archive files. An attacker could use this to construct a malicious tar […]
Oracle Linux 8 — httpd:2.4 — vulnerability — patch and remediation guide (ELSA-2021-4537)
🟠 High ⏱ 15–60 min Last verified: 17 August 2021 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2021-4537 Related CVEs: CVE-2021-20325 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]
Debian 10 — ruby2.5 — multiple vulnerabilities (3 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 17 August 2021 Affected versions: Debian 10 (buster) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2019-15845 CVE-2020-10663 CVE-2021-28965 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification […]
Debian 11 — roundcube — multiple vulnerabilities (20 CVEs) — patch and remediation guide
🟠 High ⏱ 15–60 min Last verified: 17 August 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2007-6321 CVE-2008-5619 CVE-2008-5620 CVE-2009-0413 CVE-2009-4076 CVE-2009-4077 CVE-2010-0464 CVE-2011-1491 +12 more Upstream summary: Cross-site scripting (XSS) vulnerability in RoundCube webmail 0.1rc2, 2007-12-09, and earlier versions, when using Internet Explorer, […]
Como instalar e configurar uma autoridade de certificação (CA) no Ubuntu 20.04
Uma autoridade de certificação (CA, do inglês Certificate Authority) é uma entidade responsável por emitir certificados digitais para verificar identidades na internet. Embora as CAs públicas sejam uma escolha popular para a…
How to Back Up PostgreSQL with pg_dump and pg_basebackup on RHEL 8
PostgreSQL provides two complementary tools for database backups: pg_dump and pg_basebackup. pg_dump takes logical backups of individual databases or selected objects and can restore to a different PostgreSQL version or host. pg_basebackup takes a physical, byte-for-byte copy of the entire data directory, which is the foundation of streaming replication and point-in-time recovery. This tutorial covers […]
Oracle Linux 8 — kernel security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2020-3010)
🟠 High ⏱ 15–60 min Last verified: 16 August 2021 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2020-3010 Related CVEs: CVE-2019-19807 CVE-2020-10757 CVE-2020-10766 CVE-2020-10767 CVE-2020-10768 CVE-2019-3016 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]
AlmaLinux 8 — chrony — 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-2021:4462 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 […]
