How To Configure Nginx as a Web Server and Reverse Proxy for Apache on One Ubuntu 20.04 Server
In this tutorial you’ll configure Nginx as both a web server and as a reverse proxy for Apache to host four domains on a single server.
Rocky Linux 8 — mingw-binutils — multiple vulnerabilities (5 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Rocky Linux 8 📖 ~4 min read • Source: Rocky Linux RXSA RLSA-2021:1968 Related CVEs: CVE-2019-16168 CVE-2020-13434 CVE-2020-13630 CVE-2020-13631 CVE-2020-13632 Upstream summary: MinGW is a free and open source software development environment to create Microsoft Windows applications. The following packages have been […]
Oracle Linux 8 — libmspack — security and stability fixes — required update (ELSA-2020-1686)
🟢 Low ⏱ 5–15 min Last verified: 13 December 2021 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2020-1686 Related CVEs: CVE-2019-1010305 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]
AlmaLinux 8 — python-pycurl — vulnerability — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read • Source: AlmaLinux ALSA ALBA-2020:1745 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 […]
How to Set Up a Firewall with firewalld on CentOS Stream 9
Introduction Setting up set up a firewall with firewalld on centos stream 9 on a CentOS Stream 9 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Set Up a Firewall with firewalld on CentOS Stream 9, with all the commands you need, the SELinux […]
AlmaLinux 8 — libtar — multiple vulnerabilities (4 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read • Source: AlmaLinux ALSA ALSA-2023:2898 Related CVEs: CVE-2021-33643 CVE-2021-33644 CVE-2021-33645 CVE-2021-33646 Upstream summary: The libtar packages contain a C library for manipulating tar archives. The library supports both the strict POSIX tar format and many of […]
Debian 11 — x11-xserver-utils — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 13 December 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2011-0465 Upstream summary: xrdb.c in xrdb before 1.0.9 in X.Org X11R7.6 and earlier allows remote attackers to execute arbitrary commands via shell metacharacters in a hostname obtained from […]
Alpine Linux edge — gsoap — vulnerability — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 2.8.113-r0 📖 ~4 min read • Source: Alpine secdb entry — gsoap 2.8.113-r0 Related CVEs: CVE-2021-21783 Upstream summary: Alpine community repository for vedge ships gsoap 2.8.113-r0 which addresses CVE-2021-21783. Table of contents Symptom & Impact Environment […]
How to Set Up a Jekyll Development Site on Ubuntu 16.04
Jekyll is a static-site generator that provides some of the benefits of a Content Management System (CMS) while avoiding the performance and security issues introduced by such database-driven sites. In this tutorial, we will install a Jekyll 3.7.3 development site on Ubuntu 16.04. In later tutorials, we’ll explore the content generated here, publish a static site to the same server, and eventually deploy to a production location.
Debian 11 — lua5.4 — multiple vulnerabilities (13 CVEs) — patch and remediation guide
🟠 High ⏱ 15–60 min Last verified: 13 December 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2020-15888 CVE-2020-15889 CVE-2020-15945 CVE-2020-24342 CVE-2020-24369 CVE-2020-24370 CVE-2020-24371 CVE-2021-43519 +5 more Upstream summary: Lua through 5.4.0 mishandles the interaction between stack resizes and garbage collection, leading to a heap-based […]
