October 2019 - Page 4 of 69

Common Problems 112424

Windows Server 2019 — Fine-grained PSO not applied to expected users in the protected group — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 06 July 2027 Affected versions: Windows Server 2019 📖 ~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 — ruby23-gems — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — ruby23-gems — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: RubyGems — multiple vulnerabilities Related CVEs: CVE-2017-0903 CVE-2019-8320 CVE-2019-8321 CVE-2019-8322 CVE-2019-8323 CVE-2019-8324 CVE-2019-8325 Upstream summary: RubyGems Security Advisories: CVE-2019-8320: Delete directory using symlink when decompressing tar CVE-2019-8321: Escape sequence injection […]

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How to Install Rancher on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Install Rancher on Debian 9

Introduction Deploying install rancher on debian 9 on a Debian 9 Stretch machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites You will need a […]

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How to Configure Shared Ethernet Adapter on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Configure Shared Ethernet Adapter on IBM AIX 7.1

Introduction IBM AIX 7.1 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure shared ethernet adapter on ibm aix 7.1 on […]

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SLES 15 — valgrind — vulnerability — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — valgrind — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2016-6131 Upstream summary: The demangler in GNU Libiberty allows remote attackers to cause a denial of service (infinite loop, stack overflow, and crash) via a […]

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What is nginx? — step-by-step Web Servers tutorial on Progressive Robot

What is nginx?

Nginx, pronounced *engine-x*, is an open source web server used for serving static or dynamic websites, reverse proxying, load balancing, and other HTTP and proxy server capabilities.

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How to Read Properties File in Python? — step-by-step Python tutorial on Progressive Robot

How to Read Properties File in Python?

URL: https://www.progressiverobot.com/python-read-properties-file/ We can use jproperties module to read properties file in Python. A properties file contains key-value pairs in each line. The equals (=) works as the delimiter between the key and value. A line that starts with # is treated as a comment. Installing jproperties Library This module is not part of the […]

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Oracle Linux 8 — cyrus-imapd — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — cyrus-imapd — vulnerability — patch and remediation guide (ELSA-2019-1771)

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-1771 Related CVEs: CVE-2019-11356 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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How to Install Zabbix 7 on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Install Zabbix 7 on RHEL 10

Introduction How to Install Zabbix 7 on RHEL 10 on RHEL 10 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration is reproducible and […]

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