chris

Alpine Linux edge — bison — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — bison — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 3.7.2-r0 📖 ~4 min read  •  Source: Alpine secdb entry — bison 3.7.2-r0 Related CVEs: CVE-2020-24240 CVE-2020-24979 CVE-2020-24980 Upstream summary: Alpine main repository for vedge ships bison 3.7.2-r0 which addresses CVE-2020-24240. Table of contents Symptom & […]

Read more
How to Configure DNSSEC Validation on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure DNSSEC Validation on Debian 9

Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up configure dnssec validation on debian 9 on Stretch leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Stretch freeze. Follow each step carefully and the […]

Read more
FreeBSD 12 — py27-djblets — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py27-djblets — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 30 April 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py-djblets — Self-XSS vulnerability Upstream summary: Djblets Release Notes reports: A recently-discovered vulnerability in the datagrid templates allows an attacker to generate a URL to any datagrid page containing malicious […]

Read more
Oracle Linux 8 — grub2 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — grub2 — vulnerability — patch and remediation guide (ELSA-2020-5786)

🟠 High   ⏱ 15–60 min  Last verified: 30 April 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-5786 Related CVEs: CVE-2020-15707 CVE-2020-10713 CVE-2020-14308 CVE-2020-14309 CVE-2020-14310 CVE-2020-14311 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

Read more
How To Use subprocess to Run External Programs in Python 3 — step-by-step Python tutorial on Progressive Robot

How To Use subprocess to Run External Programs in Python 3

Python 3’s subprocess module can be used to run external programs and read their outputs in your Python code. subprocess includes several classes and functions, but in this tutorial we’ll cover one of subprocess’s most useful functions: subprocess.run. We’ll review its different uses and main keyword arguments.

Read more
How To Set Up vsftpd for a User's Directory on Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

How To Set Up vsftpd for a User’s Directory on Ubuntu 20.04

FTP, which is short for File Transfer Protocol, is a network protocol that was once widely used for moving files between a client and server. vsftpd, very secure FTP daemon, is an FTP server for many Unix-like systems, including Linux. In this tutorial, you’ll configure vsftpd to allow a user to upload files to their home directory using FTP with login credentials secured by SSL/TLS. You’ll also connect your server using FileZilla, an open-source FTP client, to test the TLS encryption.

Read more
How to Configure MySQL Binary Log on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure MySQL Binary Log on Debian 10

Introduction How to Configure MySQL Binary Log on Debian 10 is a fundamental operation for any administrator maintaining a Debian 10 Buster server. Debian 10 Buster ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian 10. […]

Read more
CHAT