🟠 High ⏱ 5–30 min Last verified: 2 September 2023 Affected versions: Debian 12 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & […]
🟡 Medium ⏱ 5–30 min Last verified: 2 September 2023 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & Cross-Refs References & Further […]
🟠 High ⏱ 15–60 min Last verified: 2 September 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2012-6122 CVE-2012-6123 CVE-2012-6124 CVE-2012-6125 CVE-2013-1874 CVE-2013-2024 CVE-2013-4385 CVE-2014-3776 +9 more Upstream summary: Buffer overflow in the thread scheduler in Chicken before 4.8.0.1 allows attackers to cause a denial […]
🟡 Medium ⏱ 10–30 min Last verified: 2 September 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2009-3474 CVE-2009-3475 CVE-2009-3476 CVE-2015-0851 CVE-2018-0486 CVE-2018-0489 CVE-2019-9628 CVE-2023-36661 Upstream summary: OpenSAML 2.x before 2.2.1 and XMLTooling 1.x before 1.2.1, as used by Internet2 Shibboleth Service Provider 2.x before […]
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read • Source: Amazon Linux advisory ALAS2LIVEPATCH-2024-164 Related CVEs: CVE-2023-6040 CVE-2023-6606 Upstream summary: An out-of-bounds access vulnerability involving netfilter was reported and fixed as: f1082dd31fe4 (netfilter: nf_tables: Reject tables of unsupported family); While creating a new […]
🟡 Medium ⏱ 10–30 min Last verified: 2 September 2023 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read • Source: Ubuntu Security Notice USN-7464-1 Related CVEs: CVE-2022-25887 CVE-2018-19351 CVE-2018-21030 CVE-2019-10255 CVE-2019-10856 CVE-2019-9644 CVE-2020-26215 CVE-2022-24758 +1 more Upstream summary: It was discovered that Jupyter Notebook did not properly parse HTML comments under certain circumstances. […]
The perf tool is the Linux kernel’s built-in performance analysis framework, capable of sampling CPU events, tracing system calls, counting hardware performance counters, and generating flame graphs — all without any changes to the application under test. On RHEL 9, perf integrates tightly with the kernel’s BPF and tracepoint subsystems, making it one of the […]
🟢 Low ⏱ 5–15 min Last verified: 2 September 2023 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read • Source: Ubuntu Security Notice USN-7336-1 Related CVEs: CVE-2021-30184 Upstream summary: Michael Vaughan discovered an overflow vulnerability in GNU Chess that occurs when reading a specially crafted Portable Game Notation (PGN) file. An attacker could […]
🟡 Medium ⏱ 10–30 min Last verified: 2 September 2023 Affected versions: CentOS Stream 9 📖 ~4 min read • Source: AlmaLinux/RHEL advisory ALSA-2024:9158 Related CVEs: CVE-2020-27827 CVE-2021-43612 CVE-2023-41910 Upstream summary: LLDP is an industry standard protocol designed to supplant proprietary Link-Layer protocols such as EDP or CDP. The goal of LLDP is to […]
![How To Install Linux, Nginx, MySQL, PHP (LEMP stack) on Ubuntu 20.04 [Quickstart] — step-by-step Linux tutorial on Progressive Robot](https://www.progressiverobot.com/wp-content/uploads/2026/05/how-to-install-linux-nginx-mysql-php-lemp-stack-on-ubuntu-20-04-quickstart-81487-featured.png "How To Install Linux, Nginx, MySQL, PHP (LEMP stack) on Ubuntu 20.04 [Quickstart] 10")
In this quickstart guide, we’ll install a LEMP stack (Nginx, MySQL and PHP-FPM) on an Ubuntu 20.04 server.
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