chris

Ubuntu 16.04 — libdbi-perl — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — libdbi-perl — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 2 February 2021 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5030-2 Related CVEs: CVE-2014-10402 CVE-2020-14393 CVE-2019-20919 CVE-2020-14392 Upstream summary: USN-5030-1 addressed vulnerabilities in Perl DBI module. This update provides the corresponding updates for Ubuntu 16.04 ESM. Original advisory details: It […]

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Live Coding a Chat App With Appwrite and ReactJS — step-by-step DevOps tutorial on Progressive Robot

Live Coding a Chat App With Appwrite and ReactJS

Rapidly spin up a persistent message storage backend using Appwrite’s open-source backend-as-a-service and deploy it on the cloud provider without installing Docker on your local machine. Enable multiple users to sign up, log in, and chat in real-time with a React frontend.

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Java switch case String — step-by-step Programming tutorial on Progressive Robot

Java switch case String

URL: https://www.progressiverobot.com/java-switch-case-string/ Today we will look into Java Switch Case String Example. Being a java programmer, I know the importance of String and how many times it's used for conditional flow. Whether you have a simple method that behaves differently for different input String or a Servlet controller class to check the incoming action and […]

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Ubuntu 16.04 — gegl — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — gegl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 2 February 2021 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5251-1 Related CVEs: CVE-2021-45463 Upstream summary: It was discovered that GEGL incorrectly filtered and escaped file path input data when using the C system() function for execution of the ImageMagick […]

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How to Mount NFS Shares at Boot on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Mount NFS Shares at Boot on Debian 9

Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up mount nfs shares at boot 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 […]

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openSUSE Tumbleweed — hylafax+ — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — hylafax+ — multiple vulnerabilities (4 CVEs) — 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-2018:2797-1 (see also SUSE bugzilla) Related CVEs: CVE-2018-17141 CVE-2020-15396 CVE-2020-15397 CVE-2020-8024 Upstream summary: HylaFAX 6.0.6 and HylaFAX+ 5.6.0 allow remote attackers to execute arbitrary code via a dial-in session that provides a […]

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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-2021-0089)

🔴 Critical   ⏱ 15–90 min  Last verified: 2 February 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-0089 Related CVEs: CVE-2020-16044 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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How To Encrypt OpenLDAP Connections Using STARTTLS — step-by-step Security tutorial on Progressive Robot

How To Encrypt OpenLDAP Connections Using STARTTLS

OpenLDAP provides an LDAP directory service that is flexible and well-supported. However, out-of-the-box, the server itself communicates over an unencrypted web connection. In this guide, we will demonstrate how to encrypt connections to OpenLDAP by configuring an LDAP…

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