July 2020 - Page 11 of 62

Common Problems 113476

Windows Server 2012 R2 – Endpoint filter driver deadlock blocks file and network I/O – Fix and Prevention

🟠 High   ⏱ 5–30 min  Last verified: 26 July 2020 Affected versions: Windows Server 2012 R2 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution — Primary Fix Solution — Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related […]

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Información sobre las bases de datos relacionales — step-by-step DevOps tutorial on Progressive Robot

Información sobre las bases de datos relacionales

Los sistemas de administración de bases de datos (DBMS) son programas que permiten a los usuarios interactuar con una base de datos. Les permiten controlar el acceso a una base de datos, escribir datos, ejecutar consultas y realizar otras tareas relacionadas con la…

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Trie Data Structure in C/C++ — step-by-step Programming tutorial on Progressive Robot

Trie Data Structure in C/C++

URL: https://www.progressiverobot.com/trie-data-structure-in-c-plus-plus/ A Trie data structure acts as a container for a dynamic array. In this article, we shall look at how we can implement a Trie in C/C++. This is based on the tree data structure but does not necessarily store keys. Here, each node only has a value, which is defined based on […]

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How to Configure GEOM Mirroring on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Configure GEOM Mirroring on FreeBSD 12

Introduction Deploying configure geom mirroring on freebsd 12 on a FreeBSD 12 machine differs from Linux in several important ways: packages come from the FreeBSD Ports Collection or the binary pkg repository, services are registered in /etc/rc.conf via sysrc(8), and firewall rules are written in pf.conf(5) syntax. This tutorial stays entirely within the standard base […]

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NodeJS Export and Import Modules — step-by-step Javascript tutorial on Progressive Robot

NodeJS Export and Import Modules

URL: https://www.progressiverobot.com/nodejs-export-and-import-modules/ In my previous posts, we have discussed about "[How to install Enide Studio 2014 IDE](/community/tutorials/node-js-basic-examples-with-node-cli-and-node-ide "Node JS Basic Examples With Node REPL (CLI) and Node IDE")" and also "How to create a Node JS Application". Before discussing about "How to create new Node JS Modules and How to reuse them in other Node […]

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Ubuntu 14.04 — grub2 — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — grub2 — multiple vulnerabilities (11 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 26 July 2020 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4432-2 Related CVEs: https://launchpad.net/bugs/1889556 https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/GRUB2SecureBootBypass CVE-2020-10713 CVE-2020-14308 CVE-2020-14309 CVE-2020-14310 CVE-2020-14311 CVE-2020-15705  +3 more Upstream summary: USN-4432-1 fixed vulnerabilities in GRUB2 affecting Secure Boot environments. Unfortunately, the update introduced regressions for […]

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How To Protect an Nginx Server with Fail2Ban on Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

How To Protect an Nginx Server with Fail2Ban on Ubuntu 20.04

In this guide, you will learn how to install `fail2ban` on a Ubuntu 20.04 server and configure it to monitor your Nginx logs for intrusion attempts. Fail2ban can significantly mitigate brute force attacks by creating rules that automatically alter your firewall configuration to ban specific IPs after a certain number of unsuccessful login attempts. This will allow your server to harden itself against these access attempts without intervention from you.

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