Linux

How To Disable Root Login on Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

How To Disable Root Login on Ubuntu 20.04

All Linux-based machines come with a default root user that has all privileges on the machine. Good security practices recommend that you disable the root login over SSH to prevent unauthorized access to your Linux-based machine by any other user. Disabling root login prevents root access over SSH to your Linux-based machine, which means that no one will have unlimited privileges.

Read more
Oracle Linux 8 — thunderbird — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — thunderbird — vulnerability — patch and remediation guide (ELSA-2019-4195)

🟠 High   ⏱ 15–60 min  Last verified: 1 October 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-4195 Related CVEs: CVE-2019-17011 CVE-2019-17012 CVE-2019-17005 CVE-2019-17010 CVE-2019-17008 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative […]

Read more
How to Install and Use Podman with systemd Socket Activation on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install and Use Podman with systemd Socket Activation on RHEL 7

How to Install and Use Podman with systemd Socket Activation on RHEL 7 Podman is a daemonless container engine developed by Red Hat that provides a Docker-compatible CLI while operating without a central privileged daemon. On RHEL 7, Podman integrates deeply with systemd, enabling containers to be managed as first-class system services, started on-demand via […]

Read more
Oracle Linux 8 — gnutls security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — gnutls security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2025-17415)

🟡 Medium   ⏱ 10–30 min  Last verified: 30 September 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-17415 Related CVEs: CVE-2025-32990 CVE-2025-6395 CVE-2025-32988 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification […]

Read more
Common Problems 118025

Ubuntu 18.04 LTS – snapd services fail and snap apps do not launch

🟡 Medium   ⏱ 5–30 min  Last verified: 30 September 2020 Affected versions: Ubuntu 18.04 LTS Ubuntu 18.04 Ubuntu 18.04.6 📖 ~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 […]

Read more
Common Problems 117591

Ubuntu 20.04 LTS – MySQL service fails to start after crash with InnoDB log mismatch – Fix & Prevention

🔴 Critical   ⏱ 5–30 min  Last verified: 30 September 2020 Affected versions: Ubuntu 20.04 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 […]

Read more
openSUSE Tumbleweed — texlive-devel — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — texlive-devel — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2020:0804-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-8017 Upstream summary: A Race Condition Enabling Link Following vulnerability in the cron job shipped with texlive-filesystem of SUSE Linux Enterprise Module for Desktop Applications […]

Read more
Top 10 Best Lightweight Linux Distros of 2020 — step-by-step Linux tutorial on Progressive Robot

Top 10 Best Lightweight Linux Distros of 2020

URL: https://www.progressiverobot.com/top-best-lightweight-linux-distros/ Today, we're talking about the best lightweight Linux distros of 2020 today. If you want to bring an old computer back to life or you are a minimalist who likes their computer systems lean, this article is for you. People choose Linux for three main reasons: More control/freedom Snappy performance Less resource usage […]

Read more
Amazon Linux 2 — exempi — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — exempi — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2023-2260 Related CVEs: CVE-2020-18651 CVE-2017-18233 CVE-2017-18234 CVE-2017-18236 CVE-2017-18238 CVE-2018-7730 Upstream summary: Buffer Overflow vulnerability in function ID3_Support::ID3v2Frame::getFrameValue in exempi 2.5.0 and earlier allows remote attackers to cause a denial of […]

Read more
Amazon Linux 2 — velocity — vulnerability — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — velocity — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2021-1690 Related CVEs: CVE-2020-13936 Upstream summary: A flaw was found in velocity. An attacker, able to modify Velocity templates, may execute arbitrary Java code or run arbitrary system commands with […]

Read more
CHAT