September 2019 - Page 35 of 66

How to Back Up MariaDB with mariabackup on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Back Up MariaDB with mariabackup on RHEL 10

Introduction Setting up back up mariadb with mariabackup on a RHEL 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Back Up MariaDB with mariabackup on RHEL 10, with all the commands you need, the SELinux and firewalld considerations to keep in mind, and […]

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How To Install and Use ClickHouse on Debian 9 — step-by-step Linux tutorial on Progressive Robot

How To Install and Use ClickHouse on Debian 9

ClickHouse is an open-source, column-oriented analytics database created by [Yandex](https://yandex.com) for OLAP and big data use cases. In this tutorial, you’ll install the ClickHouse database server and client on your machine. You’ll use the DBMS for typical tasks and optionally enable remote access from another server so that you’ll be able to connect to the database from another machine.

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Ubuntu 18.04 — xapian-core — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — xapian-core — vulnerability — 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-3709-1 Related CVEs: CVE-2018-0499 Upstream summary: It was discovered that Xapian-core incorrectly handled certain files. An attacker could possibly use this to execute arbitrary code. Table of contents Symptom & […]

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Ubuntu 18.04 — cflow — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — cflow — vulnerability — 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-5375-1 Related CVEs: CVE-2019-16165 Upstream summary: It was discovered that GNU cflow was incorrectly handling memory cleanup operations at the end of a compilation module. An attacker could possibly use […]

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How to Set Up a PKI Infrastructure with AD CS on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Set Up a PKI Infrastructure with AD CS on Windows Server 2019

Introduction to Active Directory Certificate Services A Public Key Infrastructure (PKI) built on Active Directory Certificate Services (AD CS) on Windows Server 2019 provides the foundation for internal certificate management: TLS/SSL certificates for web servers and services, smart card authentication, encrypted email (S/MIME), code signing, and encrypted file systems (EFS). A proper enterprise PKI uses […]

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SLES 15 — libmarkdown2 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — libmarkdown2 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2019:0019-1 (see also SUSE bugzilla) Related CVEs: CVE-2018-11468 CVE-2018-12495 Upstream summary: The __mkd_trim_line function in mkdio.c in libmarkdown.a in DISCOUNT 2.2.3a allows remote attackers to cause a denial of service (heap-based buffer […]

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

Oracle Linux 8 — zsh — vulnerability — patch and remediation guide (ELSA-2020-0903)

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-0903 Related CVEs: CVE-2019-20044 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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