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Securing Your Droplet — step-by-step Security tutorial on Progressive Robot

Securing Your Droplet

Secure your Droplet from malicious actors attempting to compromise your systems. This talk will cover the foundations of securing your droplet, protecting your users, and keeping your data safe.

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Debian 11 — balsa — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — balsa — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 26 July 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2003-0167 CVE-2007-1558 CVE-2007-5007 CVE-2020-16118 Upstream summary: Multiple off-by-one buffer overflows in the IMAP capability for Mutt 1.3.28 and earlier, and Balsa 1.2.4 and earlier, allow a remote malicious […]

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Java Thread Dump - VisualVM, jstack, kill -3, jcmd — step-by-step Programming tutorial on Progressive Robot

Java Thread Dump – VisualVM, jstack, kill -3, jcmd

URL: https://www.progressiverobot.com/java-thread-dump-visualvm-jstack-kill-3-jcmd/ Java Thread dump is list of all the threads active in the JVM. Java Thread Dump Java thread dump is very helpful in analyzing bottlenecks in the application and [deadlock](/community/tutorials/deadlock-in-java-example "Java Deadlock") situations. Here we will learn multiple ways through which we can generate thread dump for a java program. These instructions are […]

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Oracle Linux 9 — lua — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — lua — vulnerability — patch and remediation guide (ELSA-2023-0957)

🟡 Medium   ⏱ 10–30 min  Last verified: 26 July 2022 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-0957 Related CVEs: CVE-2021-43519 CVE-2021-44964 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

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How To Install and Use Docker on Rocky Linux 9 — step-by-step Docker tutorial on Progressive Robot

How To Install and Use Docker on Rocky Linux 9

Docker is an application that simplifies the process of managing application processes in containers. In this tutorial, you’ll install and use Docker Community Edition (CE) on Rocky Linux 9. You’ll install Docker itself, work with containers and images, and push an image to a Docker Repository.

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FreeBSD 13 — xen-tools — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — xen-tools — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 26 July 2022 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: xen-tools — xenstore denial of service via repeated update Related CVEs: CVE-2014-3672 CVE-2015-2152 CVE-2015-2752 CVE-2015-2756 CVE-2015-3209 CVE-2015-3259 CVE-2015-3456 CVE-2015-4103  +12 more Upstream summary: The Xen Project reports: Unprivileged guests may […]

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Gentoo Linux — dev-java/jackson-databind — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — dev-java/jackson-databind — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202210-21 Related CVEs: CVE-2022-42003 CVE-2022-42004 Upstream summary: Multiple vulnerabilities have been discovered in FasterXML jackson-databind. Please review the CVE identifiers referenced below for details. Table of contents Symptom & Impact Environment & […]

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How to Set Up WordPress with Nginx on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Set Up WordPress with Nginx on Debian 11

Introduction Debian 11 Bullseye is built around the ethos of stability and free software. Setting up set up wordpress with nginx 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 […]

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