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Common Problems 112493

Windows Server 2019 — RRAS NAT translation table saturation causes outbound traffic drops during peak usage — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 16 November 2021 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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IBM AIX 7.2 — CVE-2021-38948 — vulnerability — patch and remediation guide — diagnosis and fix on IBM AIX 7.2

IBM AIX 7.2 — CVE-2021-38948 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 16 November 2021 Affected versions: IBM AIX 7.2 📖 ~4 min read  •  Source: NVD CVE-2021-38948, IBM Support Bulletin CVE: CVE-2021-38948 NVD summary: IBM InfoSphere Information Server 11.7 is vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit […]

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FreeBSD 13 — py-pycrypto — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — py-pycrypto — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 16 November 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: pycrypto — vulnerable ElGamal key generation Related CVEs: CVE-2012-2417 Upstream summary: Dwayne C. Litzenberger of PyCrypto reports: In the ElGamal schemes (for both encryption and signatures), g is supposed to […]

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AlmaLinux 8 — python-resolvelib — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — python-resolvelib — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2022:1825 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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How To Use One-to-Many Database Relationships with Flask and SQLite — step-by-step Databases tutorial on Progressive Robot

How To Use One-to-Many Database Relationships with Flask and SQLite

Flask is a framework for building web applications using the Python language, and SQLite is a database engine that can be used with Python to store application data. In this tutorial, you will use Flask with SQLite to create a to-do application where users can create lists of to-do items. You will learn how to use SQLite with Flask and how one-to-many database relationships work.

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FreeBSD 13 — opensmtpd — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — opensmtpd — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 16 November 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: OpenSMTPd — LPE and RCE in OpenSMTPD's default install Related CVEs: CVE-2015-7687 CVE-2020-7247 CVE-2020-8793 CVE-2020-8794 Upstream summary: OpenSMTPD developers reports: An out of bounds read in smtpd allows an attacker […]

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AlmaLinux 8 — plymouth — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — plymouth — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2022:1965 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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How to Install Ruby with rbenv on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Install Ruby with rbenv on FreeBSD 13

Introduction FreeBSD 13 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up install ruby with rbenv on freebsd 13 on FreeBSD 13 follows the rc.conf/service(8) paradigm rather than systemd, which means enabling a service and configuring its startup options are done differently from any Linux […]

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Debian 11 — openjpa — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — openjpa — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 16 November 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-1768 Upstream summary: The BrokerFactory functionality in Apache OpenJPA 1.x before 1.2.3 and 2.x before 2.2.2 creates local executable JSP files containing logging trace data produced during deserialization […]

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Установка WordPress со стеком LAMP в Ubuntu 18.04 — step-by-step Linux tutorial on Progressive Robot

Установка WordPress со стеком LAMP в Ubuntu 18.04

Предыдущая версия данного обучающего руководства была написана Джастином Эллингвудом WordPress — это самая популярная CMS (система управления контентов) в сети Интернет. Она позволяет вам легко настраивать блоги и…

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