September 2019 - Page 21 of 66

Common Problems 115429

RHEL 7 SELinux denial preventing httpd outbound connection

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: RHEL 7 📖 ~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 Errors & […]

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FreeBSD 12 — messagelib — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — messagelib — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: messagelib — HTML email can open browser window automatically Related CVEs: CVE-2018-19516 Upstream summary: Albert Astals Cid reports: messagelib is the library used by KMail to display emails. messagelib by […]

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How to Configure Horizontal Pod Autoscaling on SLES 15 — step-by-step SUSE Linux Enterprise 15 tutorial on Progressive Robot

How to Configure Horizontal Pod Autoscaling on SLES 15

Introduction This tutorial covers How to Configure Horizontal Pod Autoscaling on SLES 15 on SLES 15. SLES 15 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 15 system is up to date: zypper […]

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The paste() function in R - A  brief guide — step-by-step DevOps tutorial on Progressive Robot

The paste() function in R – A brief guide

URL: https://www.progressiverobot.com/paste-in-r/ Using the paste() function in R will be straight and simple. In this tutorial let's see how we can use paste() to concatenate the strings and values. paste(): Takes multiple elements from the multiple vectors and concatenates them into a single element. Along with paste() function, R has another function named paste0(). Yes, […]

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FreeBSD 12 — xboing — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — xboing — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: multiple buffer overflows in xboing Related CVEs: CVE-2004-0149 Upstream summary: Steve Kemp reports (in a Debian bug submission): Due to improper bounds checking it is possible for a malicious user […]

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Ubuntu 14.04 — file — multiple vulnerabilities (17 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — file — multiple vulnerabilities (17 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4172-2 Related CVEs: CVE-2019-18218 CVE-2014-9620 CVE-2014-9621 CVE-2014-9653 CVE-2015-8865 CVE-2018-10360 CVE-2014-3710 CVE-2014-8116  +9 more Upstream summary: USN-4172-1 fixed a vulnerability in file. This update provides the corresponding update for Ubuntu 12.04 […]

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How to Install Memcached on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Install Memcached on RHEL 10

Introduction Setting up install memcached on a RHEL 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Install Memcached on RHEL 10, with all the commands you need, the SELinux and firewalld considerations to keep in mind, and how to validate the result on […]

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How To Setup Red5 on Ubuntu 12.10 — step-by-step Linux tutorial on Progressive Robot

How To Setup Red5 on Ubuntu 12.10

Red5 is a popular program written in Java that lets you stream audio/video files, record streams, and support various protocols. Here’s how to set it up on Ubuntu 12.10.

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