September 2023 - Page 33 of 72

Common Problems 117506

Ubuntu 20.04 Time Drift and NTP Sync Problems

🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 📖 ~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 Errors & Cross-Refs References & Further […]

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Alpine Linux 3.18 — netatalk — multiple vulnerabilities (12 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — netatalk — multiple vulnerabilities (12 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 3.1.18-r0 📖 ~4 min read  •  Source: Alpine secdb entry — netatalk 3.1.18-r0 Related CVEs: CVE-2022-22995 CVE-2023-42464 CVE-2022-43634 CVE-2022-45188 CVE-2021-31439 CVE-2022-23121 CVE-2022-23123 CVE-2022-23122  +4 more Upstream summary: Alpine community repository for vv3.18 ships netatalk 3.1.18-r0 which […]

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Java String to Uppercase — step-by-step Programming tutorial on Progressive Robot

Java String to Uppercase

URL: https://www.progressiverobot.com/java-string-to-uppercase/ Java String to uppercase conversion can be done using toUpperCase() method. Java String to UpperCase Java String toUpperCase() method has two variants – toUpperCase() and toUpperCase(Locale locale). Conversion of the characters to upper case is done by using the rules of default locale. Calling toUpperCase() function is same as calling toUpperCase(Locale.getDefault()). Java String […]

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FreeBSD 13 — libvpx — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — libvpx — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: electron{22,24,25} — Heap buffer overflow in vp8 encoding in libvpx Related CVEs: CVE-2014-1578 CVE-2015-4485 CVE-2015-4486 CVE-2015-4506 CVE-2023-5217 Upstream summary: Electron developers report: This update fixes the following vulnerability: Security: backported […]

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Debian 12 — engrampa — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — engrampa — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2023-52138 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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Debian 12 — trousers — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — trousers — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2012-0698 CVE-2020-24330 CVE-2020-24331 CVE-2020-24332 Upstream summary: tcsd in TrouSerS before 0.3.10 allows remote attackers to cause a denial of service (daemon crash) via a crafted type_offset value in […]

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Initial Server Setup with CentOS 6 — step-by-step Linux tutorial on Progressive Robot

Initial Server Setup with CentOS 6

This tutorial covers how to login with root, how to change the root password, how to create a new user, how to give the new user root privileges, how to change the port, and how to disable root login in. This tutorial is written for Ubuntu. When you first create your server, this tutorial explains the first steps you need to take. This tutorial is made for CentOS.

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How to Set Up High Availability with Pacemaker on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Set Up High Availability with Pacemaker on Oracle Linux 9

Introduction How to Set Up High Availability with Pacemaker on Oracle Linux 9 on Oracle Linux 9 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 […]

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Debian 12 — vanessa-logger — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — vanessa-logger — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2001-1566 Upstream summary: Format string vulnerability in libvanessa_logger 0.0.1 in Perdition 0.1.8 allows remote attackers to execute arbitrary code via format string specifiers in the __vanessa_logger_log function. Table […]

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Debian 11 — node-xml2js — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — node-xml2js — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2023-0842 Upstream summary: xml2js version 0.4.23 allows an external attacker to edit or add new properties to an object. This is possible because the application does not properly […]

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