This tutorial contains a number of tips and strategies for using Git more effectively. It will cover how to create a workspace, how to convert an existing project into a workspace, best practices for writing commit messages, and how to push changes to a remote server.
We all use email and online file storage services like Gmail or Dropbox. However, these services may not be suitable for the storage of sensitive data, both personal and professional. Do we trust their privacy policies when attaching an important business contract or confidential information? Do we accept that all our data will be collected, processed, and analyzed? There is a solution to this problem: PEPS is an email, file sharing, and chat platform that uses end-to-end encryption.
🟢 Low ⏱ 5–15 min Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read • Source: Ubuntu Security Notice USN-4478-2 Related CVEs: CVE-2020-13757 Upstream summary: USN-4478-1 fixed a vulnerability in Python-RSA. This update provides the corresponding update for Ubuntu 16.04 ESM, Ubuntu 18.04 ESM and Ubuntu 20.04 ESM. Original […]
With Ansible, you can use ad hoc commands to execute one instruction at a time on one or more remote servers. They are ideal to perform tasks that aren’t executed frequently, and to consult information about the remote systems that Ansible manages. In this cheatsheet guide, you’ll learn how to use ad hoc commands to manage one or more servers with Ansible, and how to perform some common tasks this way.
A glossary of technical terms for the the cloud provider community.
Learning how to use nested queries in SQL is one of the most powerful and frequently applied skills for developers, backend engineers, database administrators, data analysts, full-stack builders, DevOps professionals, startup founders, business intelligence specialists, and anyone writing advanced, efficient, single-statement queries in 2026.
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read • Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2012-2582 CVE-2012-4600 CVE-2012-4751 CVE-2013-2625 CVE-2013-2637 CVE-2013-3551 CVE-2013-4088 CVE-2013-4717 +6 more Upstream summary: Multiple cross-site scripting (XSS) vulnerabilities in Open Ticket Request System (OTRS) Help Desk […]
🟡 Medium ⏱ 5–30 min Last verified: 20 May 2026 📖 ~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 […]
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read • Source: Gentoo GLSA GLSA-202101-28 Related CVEs: CVE-2019-17594 CVE-2019-17595 Upstream summary: Multiple vulnerabilities have been discovered in ncurses. Please review the CVE identifiers referenced below for details. Table of contents Symptom & Impact Environment & Reproduction […]
🔴 Critical ⏱ 5–30 min Last verified: 20 May 2026 Affected versions: RHEL 10 📖 ~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 & […]
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