April 2021 - Page 22 of 66

Max Heap Data Structure Implementation in Java — step-by-step Programming tutorial on Progressive Robot

Max Heap Data Structure Implementation in Java

URL: https://www.progressiverobot.com/max-heap-java/ A max heap is a complete binary tree in which the value of a node is greater than or equal to the values of its children. Max Heap data structure is useful for sorting data using heap sort. In this tutorial, we will cover everything you need to know to implement max heaps […]

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How to Configure Active Directory Trust Relationships on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Configure Active Directory Trust Relationships on Windows Server 2019

Introduction to Active Directory Trust Relationships Active Directory trust relationships allow users in one domain or forest to access resources in another domain or forest. Trusts are directional—a trust between Domain A and Domain B means users in Domain A can authenticate to Domain B (or vice versa, depending on direction). Windows Server 2019 supports […]

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

Ubuntu 16.04 — cpanminus — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5230-1 Related CVEs: CVE-2020-16154 Upstream summary: It was discovered that App::cpanminus did not properly verify CHECKSUMS files. An attacker could possibly use this issue to bypass signature verification, gaining access […]

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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-2021-1353)

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-1353 Related CVEs: CVE-2021-23999 CVE-2021-24002 CVE-2021-29945 CVE-2021-23998 CVE-2021-29948 CVE-2021-23995 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Como usar o servidor SMTP do Google — step-by-step DevOps tutorial on Progressive Robot

Como usar o servidor SMTP do Google

Um recurso pouco conhecido sobre o Gmail e o e-mail do Google Apps é o servidor SMTP portátil do Google. Ao invés de ter que gerenciar seu próprio servidor de e-mail de saída em seu VPS da the cloud provider, é possível simplesmente definir as configurações do servidor SMTP do Google em qualquer script ou programa do qual você queira enviar e-mails.

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FreeBSD 13 — linux-firefox-devel — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — linux-firefox-devel — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Mozilla — multiple vulnerabilities Related CVEs: CVE-2006-3113 CVE-2006-3677 CVE-2006-3801 CVE-2006-3802 CVE-2006-3803 CVE-2006-3804 CVE-2006-3805 CVE-2006-3806  +12 more Upstream summary: The Mozilla Project reports: MFSA 2011-12 Miscellaneous memory safety hazards MFSA 2011-13 […]

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