Linux

How to Install MariaDB on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Install MariaDB on Debian 11 (DEBIAN-11-2)

Introduction Debian 11 Bullseye is built around the ethos of stability and free software. Setting up install mariadb on debian 11 on Bullseye leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Bullseye freeze. Follow each step carefully and the resulting […]

Read more
openSUSE Tumbleweed — libuev3 — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — libuev3 — vulnerability — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2024:0023-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-48620 Upstream summary: uev (aka libuev) before 2.4.1 has a buffer overflow in epoll_wait if maxevents is a large number. Table of contents Symptom & […]

Read more
Debian 11 — xcfa — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — xcfa — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 October 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2014-5254 CVE-2014-5255 Upstream summary: xcfa before 5.0.1 creates temporary files insecurely which could allow local users to launch a symlink attack and overwrite arbitrary files. Table of contents […]

Read more
Debian 11 — v4l2loopback — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — v4l2loopback — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 October 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2022-2652 Upstream summary: Depending on the way the format strings in the card label are crafted it's possible to leak kernel stack memory. There is also the possibility […]

Read more
How to Install Python 3 and pip on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install Python 3 and pip on RHEL 7

How to Install Python 3 and pip on RHEL 7 RHEL 7 ships with Python 2.7 as the system default, and that version is deeply embedded in system utilities such as yum itself. Replacing or removing the system Python will break critical OS tooling, so the correct approach on RHEL 7 is to install Python […]

Read more
Common Problems 120589

Debian 11 Sudo Stops Working for Admin Group

🟠 High   ⏱ 5–30 min  Last verified: 4 October 2022 Affected versions: Debian 11 📖 ~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
AlmaLinux 8 — micropipenv — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — micropipenv — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALEA-2021:1810 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

Read more
CHAT