July 2019 - Page 21 of 69

Common Problems 118052

Ubuntu 18.04 LTS OpenSSL updates break legacy TLS clients

🟡 Medium   ⏱ 5–30 min  Last verified: 20 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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How to Configure Postfix Mail Server on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Configure Postfix Mail Server on RHEL 10

Introduction This tutorial demonstrates how to Configure Postfix Mail Server on RHEL 10 on RHEL 10. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered RHEL 10 system with the default AppStream repositories […]

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

FreeBSD 12 — perdition — 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: perdition — str_vwrite format string vulnerability Related CVEs: CVE-2007-5740 Upstream summary: SEC-Consult reports: Perdition IMAP is affected by a format string bug in one of its IMAP output-string formatting functions. […]

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Common Problems 115964

Ubuntu 26.04 LTS – kernel updates fail because /boot is full – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: Ubuntu 26.04 LTS 📖 ~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 […]

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How to Patch AIX with Fix Central Downloads on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Patch AIX with Fix Central Downloads 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 patch aix with fix central downloads on ibm aix […]

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FreeBSD 12 — diablo-jdk-freebsd — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — diablo-jdk-freebsd — 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: jdk — jar directory traversal vulnerability Related CVEs: CVE-2005-1080 Upstream summary: Pluf has discovered a vulnerability in Sun Java JDK/SDK, which potentially can be exploited by malicious people to compromise […]

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How to Trace System Calls with truss on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Trace System Calls with truss on IBM AIX 7.2

Introduction IBM AIX 7.2 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 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to trace system calls with truss on ibm aix 7.2 […]

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How to Secure MySQL 9 on Ubuntu 26.04 — step-by-step Linux tutorial on Progressive Robot

How to Install MariaDB 11 on Ubuntu 26.04

MariaDB is a community-developed, drop-in replacement for MySQL with additional storage engines and performance improvements. MariaDB 11 is the latest major release with enhanced features. This guide installs and secures MariaDB 11 on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS server A user with sudo privileges Step 1 […]

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How to Set Up Windows Server 2019 Network Monitoring — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Set Up Windows Server 2019 Network Monitoring

How to Set Up Windows Server 2019 Network Monitoring Comprehensive network monitoring on Windows Server 2019 provides visibility into bandwidth utilization, connectivity health, latency, packet loss, and network service availability. Windows Server 2019 includes built-in tools including Performance Monitor, Network Monitor (via download), and the Network Diagnostics Framework, which can be extended with third-party agents. […]

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