September 2020 - Page 13 of 66

Ubuntu 18.04 — libproxy — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — libproxy — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4673-1 Related CVEs: CVE-2020-26154 CVE-2020-25219 Upstream summary: Li Fei discovered that libproxy incorrectly handled certain PAC files. An attacker could possibly use this issue to cause a crash or execute […]

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Como usar tags struct em Go — step-by-step Programming tutorial on Progressive Robot

Como usar tags struct em Go

As estruturas, ou structs, são usadas para coletar vários fragmentos de informações em uma unidade. Essas coletas de informações são usadas para descrever conceitos de nível superior, como um Address…

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How To Use MySQL Query Profiling — step-by-step Databases tutorial on Progressive Robot

How To Use MySQL Query Profiling

MySQL query profiling is a useful technique when trying to analyze the overall performance of a database driven application. When developing a mid to large size application, there tends to be hundreds of queries distributed throughout a large code base. This article will demonstrate some useful query profiling techniques using tools that are built into MySQL server.

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How to Configure GlusterFS on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Configure GlusterFS on FreeBSD 12

Introduction This guide explains how to Configure GlusterFS on FreeBSD 12 on FreeBSD 12. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for fine-grained privilege separation. […]

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Ubuntu 20.04 — opendmarc — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — opendmarc — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6356-1 Related CVEs: CVE-2020-12272 CVE-2020-12460 Upstream summary: Jianjun Chen, Vern Paxson and Jian Jiang discovered that OpenDMARC incorrectly handled certain inputs. If a user or an automated system were tricked […]

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Настройка брандмауэра с UFW в Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

Настройка брандмауэра с UFW в Ubuntu 20.04

UFW — это простой интерфейс управления брандмауэром, скрывающий сложность низкоуровневых технологий фильтрации пакетов, таких как iptables и nftables. Если вы ищете способ защитить вашу сеть и не знаете, какой инструмент для этого использовать, UFW может отлично вам…

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How To Install and Secure Memcached on CentOS 7 — step-by-step Linux tutorial on Progressive Robot

How To Install and Secure Memcached on CentOS 7

Memory object caching systems like Memcached can optimize backend database performance by temporarily storing information in memory, retaining frequently or recently requested records. In this guide, we will cover how to protect your Memcached server by binding your installation to a local or private network interface and creating an authorized user for your Memcached instance.

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Oracle Linux 8 — tbb — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — tbb — vulnerability — patch and remediation guide (ELSA-2025-1215)

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-1215 Related CVEs: CVE-2020-11023 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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