Introduction This tutorial covers How to Configure DRBD for High Availability on SLES 12 on SLES 12. SLES 12 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 12 system is up to date: […]
It is important to understand how privilege escalation works in Ansible, so that you’re able to execute your tasks with appropriate permissions. By default, tasks will run as the connecting user – this might be either root or any regular user with SSH access to the remote nodes in an inventory file. In this guide, learn more about privilege escalation in Ansible playbooks.
🟠 High ⏱ 15–60 min Last verified: 23 June 2019 Affected versions: FreeBSD 12 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: krb5 — Double-free in KDC TGS processing Related CVEs: CVE-2014-5352 CVE-2014-5353 CVE-2014-5354 CVE-2014-9421 CVE-2014-9422 CVE-2014-9423 CVE-2015-2694 CVE-2016-3120 +4 more Upstream summary: The MIT krb5 Team reports: When issuing a ticket […]
🟠 High ⏱ 15–60 min Last verified: 23 June 2019 Affected versions: FreeBSD 12 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: php — multiple vulnerabilities Related CVEs: CVE-2004-0594 CVE-2004-0595 CVE-2004-1019 CVE-2004-1065 CVE-2006-4481 CVE-2006-4482 CVE-2006-4483 CVE-2006-4484 +12 more Upstream summary: The PHP development team reports: Security Enhancements and Fixes in PHP 5.2.2 […]
This checkpoint is intended to help you assess what you learned from our introductory articles to Security, where we introduced recommended security practices and commonly used security tools.
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read • Source: Amazon Linux advisory ALAS2-2026-3230 Related CVEs: CVE-2006-10002 CVE-2006-10003 Upstream summary: XML::Parser versions through 2.47 for Perl could overflow the pre-allocated buffer size cause a heap corruption (double free or corruption) and crashes. A […]
Introduction Deploying write ansible playbooks for freebsd 12 on a FreeBSD 12 machine differs from Linux in several important ways: packages come from the FreeBSD Ports Collection or the binary pkg repository, services are registered in /etc/rc.conf via sysrc(8), and firewall rules are written in pf.conf(5) syntax. This tutorial stays entirely within the standard base […]
An overview of Subjects in RxJS, a construct that acts as both an observable and an observer.
🟢 Low ⏱ 5–15 min Last verified: 23 June 2019 Affected versions: Debian 9 (stretch) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2019-19906 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]
This tutorial works through a step-by-step example of how to implement the Levenshtein distance in Python for word autocorrection and autocompletion.
