2020 - Page 542 of 735

Common Problems 113635

Windows Server 2012 R2 — Jumbo frame MTU mismatch across virtual and physical switches fragments storage traffic — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 5 April 2020 Affected versions: Windows Server 2012 R2 📖 ~2 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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How to Install and Configure Tomcat 9 on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Install and Configure Tomcat 9 on Debian 10

Introduction This guide explains how to Install and Configure Tomcat 9 on Debian 10 on Debian 10 Buster. Debian Buster uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 10 install with […]

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Understanding the SSH Encryption and Connection Process — step-by-step Security tutorial on Progressive Robot

Understanding the SSH Encryption and Connection Process

SSH, or secure shell, is an encrypted protocol used to communicate with remote servers safely. The practical uses of SSH are widely discussed in other guides. In this article, we’ll examine the underlying encryption and connection procedures that make SSH the go-to method of administering remote systems.

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FreeBSD 12 — zabbix2-server — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — zabbix2-server — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 April 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Zabbix — Remote code execution Related CVEs: CVE-2017-2824 Upstream summary: mitre reports: An exploitable code execution vulnerability exists in the trapper command functionality of Zabbix Server 2.4.X. A specially crafted […]

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Installing Java on Windows 7 Ultimate 64-bit — step-by-step Programming tutorial on Progressive Robot

Installing Java on Windows 7 Ultimate 64-bit

Recently I bought a new desktop system and installed Windows 7 Ultimate 64-bit on it. Being a Java Developer, the first thing I did after regular setup is to download and install JDK. I was using Windows XP, Solaris or Mac OS for my development purpose till now and I was installing it for the first time on Windows 7 64-bit OS.

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openSUSE Tumbleweed — chrony — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — chrony — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory Related CVEs: CVE-2014-0021 CVE-2012-4502 CVE-2012-4503 CVE-2020-14367 CVE-2016-1567 Upstream summary: Chrony before 1.29.1 has traffic amplification in cmdmon protocol Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick […]

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FreeBSD 12 — freeciv — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — freeciv — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 April 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: freeciv — Denial of Service Vulnerabilities Related CVEs: CVE-2006-0047 CVE-2006-3913 Upstream summary: Secunia reports: Luigi Auriemma has reported a vulnerability in Freeciv, which can be exploited by malicious people to […]

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How To Work with Strings in Ruby — step-by-step Programming tutorial on Progressive Robot

How To Work with Strings in Ruby

A string is a sequence of one or more characters that may consist of letters, numbers, or symbols. In this tutorial, you’ll learn how to work with strings in Ruby. You’ll create strings, display them on the screen, store them in variables, join multiple strings together, and learn how to handle special characters such as newlines, apostrophes, and double quotes.

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How To Set Up a Remote Desktop with X2Go on Debian 10 — step-by-step Linux tutorial on Progressive Robot

How To Set Up a Remote Desktop with X2Go on Debian 10

X2Go provides a working “cloud desktop,” complete with all the advantages of an always-online, remotely-accessible, and easily-scalable computing system with a very fast network. It is also more responsive and more secure than many VNC solutions. In this tutorial, you’ll use X2Go to create a Debian 10 XFCE desktop environment that you can access remotely. This “cloud desktop” will include the exact same utilities that you would obtain had you installed Debian 10 and XFCE on your local machine.

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