How To Install and Setup Spamassassin on Ubuntu 12.04
This tutorial walks you through installing and setting up Spamassassin on Ubuntu 12.04.
How to Use Ansible to Install and Set Up Docker on Ubuntu 22.04
Docker is an application that simplifies the process of managing application processes in *containers*. This guide explains how to use Ansible to automate the steps contained in our guide on How To Install and Use Docker on Ubuntu 22.04. Ansible is a modern configuration management tool that can be used to automate the provisioning and configuration of remote systems.
Ubuntu 20.04 — python-future — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 20 July 2022 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-5833-1 Related CVEs: CVE-2022-40899 Upstream summary: Sebastian Chnelik discovered that python-future incorrectly handled certain HTTP header field. An attacker could possibly use this issue to cause a denial of service. […]
Ubuntu 22.04 — gsasl — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 20 July 2022 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read • Source: Ubuntu Security Notice USN-6169-1 Related CVEs: CVE-2022-2469 Upstream summary: It was discovered that GNU SASL's GSSAPI server could make an out-of-bounds reads if given specially crafted GSS-API authentication data. A remote attacker could […]
Ubuntu 20.04 — exempi — multiple vulnerabilities (20 CVEs) — patch and remediation guide
🟠 High ⏱ 15–60 min Last verified: 19 July 2022 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-5483-1 Related CVEs: CVE-2018-12648 CVE-2021-36045 CVE-2021-36046 CVE-2021-36047 CVE-2021-36048 CVE-2021-36050 CVE-2021-36051 CVE-2021-36052 +12 more Upstream summary: It was discovered that Exempi incorrectly handled certain media files. If a user or automated […]
Ubuntu 22.04 LTS NTP Drift Causes Authentication and TLS Failures
🟡 Medium ⏱ 5–30 min Last verified: 18 July 2022 📖 ~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 […]
Ubuntu 22.04 — node-xmldom — multiple vulnerabilities (3 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 17 July 2022 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read • Source: Ubuntu Security Notice USN-6102-1 Related CVEs: CVE-2021-21366 CVE-2022-37616 CVE-2022-39353 Upstream summary: It was discovered that xmldom incorrectly handled certain inputs. If a user or an automated system were tricked into opening a specially […]
How to Speed Up Python/MySQL Application Session Handling With Redis On Ubuntu 22.04
In this guide, you’ll use the Redis database to speed up session handling in your Python/MySQL application on the Ubuntu 22.04 server.
Ubuntu 22.04 LTS – unattended-upgrades causes sustained CPU usage – Fix & Prevention
🟡 Medium ⏱ 5–30 min Last verified: 16 July 2022 Affected versions: Ubuntu 22.04 LTS 📖 ~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 […]
Ubuntu 22.04 LTS – apt update fails with missing GPG key – Fix & Prevention
🟠 High ⏱ 5–30 min Last verified: 15 July 2022 Affected versions: Ubuntu 22.04 LTS (Jammy) 📖 ~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 […]
