🟡 Medium ⏱ 5–30 min Last verified: 15 July 2021 📖 ~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: 15 July 2021 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read • Source: Ubuntu Security Notice USN-4442-2 Related CVEs: CVE-2018-1000550 CVE-2018-1000671 CVE-2020-10936 Upstream summary: USN-4442-1 fixed vulnerabilities in Sympa. This update provides the corresponding updates for Ubuntu 16.04 ESM, Ubuntu 18.04 ESM and Ubuntu 20.04 ESM. […]
Serve secure zone files on a pair of NSD nameservers using DNSSEC. This tutorial shows you how to set up master and slave nameservers, and how to serve secure zone files for two domains.
This article provides a real-world example of using Docker Compose to install an application, in this case WordPress with PHPMyAdmin as an extra. WordPress normally runs on a LAMP stack, which means Linux, Apache, MySQL/MariaDB, and PHP. The official WordPress Docker image includes Apache and PHP for us, so the only part we have to worry about is MariaDB.
This tutorial uses Docker Compose to demonstrate the automation of continuous integration workflows.
🟢 Low ⏱ 5–15 min Last verified: 14 July 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read • Source: Ubuntu Security Notice USN-4508-1 Related CVEs: CVE-2020-7040 Upstream summary: It was discovered that StoreBackup did not properly manage lock files. A local attacker could use this issue to cause a denial of service […]
A Linux container is a grouping of processes that is isolated from the rest of the system through the use of Linux kernel security features, such as namespaces and control groups. LXD lets you create and manage these containers. In this tutorial, you’ll configure LXD and use it to run Nginx in a container. You’ll then route traffic to the container in order to make the web site accessible from the Internet.
🟡 Medium ⏱ 10–30 min Last verified: 14 July 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-4677-1 Related CVEs: CVE-2020-29361 CVE-2020-29362 CVE-2020-29363 Upstream summary: David Cook discovered that p11-kit incorrectly handled certain memory operations. An attacker could use this issue to cause p11-kit to crash, resulting […]
🟢 Low ⏱ 5–15 min Last verified: 13 July 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read • Source: Ubuntu Security Notice USN-5251-1 Related CVEs: CVE-2021-45463 Upstream summary: It was discovered that GEGL incorrectly filtered and escaped file path input data when using the C system() function for execution of the ImageMagick […]
GitLab CE, or Community Edition, is an open source application primarily used to host Git repositories, with additional development-related features like issue tracking. In this guide, we will cover how to install and configure GitLab on an Ubuntu.
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