🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 0.18-r0 📖 ~4 min read • Source: Alpine secdb entry — jbig2dec 0.18-r0 Related CVEs: CVE-2020-12268 Upstream summary: Alpine main repository for vedge ships jbig2dec 0.18-r0 which addresses CVE-2020-12268. Table of contents Symptom & Impact Environment […]
![[Video] How To Set Up Sudo and SSH Keys on Ubuntu 14.04 — step-by-step Linux tutorial on Progressive Robot](https://www.progressiverobot.com/wp-content/uploads/2026/05/video-how-to-set-up-sudo-and-ssh-keys-on-ubuntu-14-04-94276-featured.png "[Video] How To Set Up Sudo and SSH Keys on Ubuntu 14.04 2")
This tutorial screencast will show you how to set up a non-root superuser account (sudo) and SSH key authentication on an Ubuntu 14.04 server. Following these steps can improve the security of your server, and is recommended for all Linux servers.
Crack your next tech interview with these top Java coding interview questions. Covers core Java, OOP, data structures, and real coding examples
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 20.04. Ansible is a modern configuration management tool that can be used to automate the provisioning and configuration of remote systems.
🟢 Low ⏱ 5–15 min Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read • Source: Arch ASA ASA-202012-10 Related CVEs: CVE-2020-25219 Upstream summary: Type: denial of service. Status: Fixed. Affected: 0.4.15+33+g454a499-2. Fixed in: 0.4.16-1. Group: AVG-1226. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]
Databases grow over time, sometimes outgrowing the space on the file system. You can also run into I/O contention when they’re located on the same partition as the rest of the operating system. RAID, network block storage, and other devices can offer redundancy and other…
🟢 Low ⏱ 5–15 min Last verified: 8 April 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-7035-1 Related CVEs: CVE-2016-1585 https://bugs.launchpad.net/apparmor/+bug/1597017 Upstream summary: It was discovered that the AppArmor policy compiler incorrectly generated looser restrictions than expected for rules allowing mount operations. A local attacker could […]
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🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read • Source: Arch ASA ASA-202011-26 Related CVEs: CVE-2020-28991 Upstream summary: Type: insufficient validation. Status: Fixed. Affected: 1.12.5-1. Fixed in: 1.12.6-1. Group: AVG-1299. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis […]
IEEE 802.1Q VLAN tagging allows a single physical network interface to carry traffic for multiple logically isolated networks by inserting a 4-byte VLAN tag into Ethernet frames. This is essential in virtualization environments, network segmentation architectures, and anywhere a single uplink must serve multiple subnets. On RHEL 8, NetworkManager handles 802.1Q VLAN interfaces natively through […]
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