Logging Monitoring

How to Install Perl on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Install Perl 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 install perl on ibm aix 7.2 on IBM AIX […]

Read more
How to Enable Brotli Compression in Nginx on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Enable Brotli Compression in Nginx on Oracle Linux 8

Introduction How to Enable Brotli Compression in Nginx on Oracle Linux 8 on Oracle Linux 8 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 […]

Read more
How to Set Up a File Server on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Set Up a File Server on Windows Server 2012 R2

How to Set Up a File Server on Windows Server 2012 R2 A file server is one of the most ubiquitous roles in any Windows Server environment, providing centralised, managed storage for user data, departmental shares, and application data. Windows Server 2012 R2 delivers an upgraded File and Storage Services role with SMB 3.0, File […]

Read more
Ubuntu 14.04 — apt — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — apt — multiple vulnerabilities (11 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 26 September 2020 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4667-2 Related CVEs: CVE-2020-27350 CVE-2020-3810 CVE-2019-3462 CVE-2016-1252 CVE-2014-7206 CVE-2014-6273 CVE-2014-0487 CVE-2014-0488  +3 more Upstream summary: USN-4667-1 fixed a vulnerability in APT. This update provides the corresponding update for Ubuntu 14.04 […]

Read more
Ubuntu 14.04 — libzen — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — libzen — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 26 September 2020 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6048-1 Related CVEs: CVE-2020-36646 Upstream summary: It was discovered that ZenLib doesn't check the return value of a specific operation before using it. An attacker could use a specially crafted […]

Read more
How to Configure Data Centre Bridging (DCB) on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Configure Data Centre Bridging (DCB) on Windows Server 2016

How to Configure Windows Server 2016 DCB Data Center Bridging Data Center Bridging (DCB) is a set of IEEE standards that enhance Ethernet to provide a lossless fabric capable of carrying multiple types of traffic including storage, networking, and cluster communications over a single converged network. DCB enables the coexistence of latency-sensitive and high-bandwidth traffic […]

Read more
Oracle Linux 8 — mod_auth_mellon — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — mod_auth_mellon — vulnerability — patch and remediation guide (ELSA-2019-0985)

🟠 High   ⏱ 15–60 min  Last verified: 26 September 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-0985 Related CVEs: CVE-2019-3878 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

Read more
IBM AIX 7.2 — CVE-2020-4668 — vulnerability — patch and remediation guide — diagnosis and fix on IBM AIX 7.2

IBM AIX 7.2 — CVE-2020-4668 — vulnerability — patch and remediation guide

🟠 High   ⏱ 30–90 min  Last verified: 26 September 2020 Affected versions: IBM AIX 7.2 📖 ~4 min read  •  Source: NVD CVE-2020-4668, IBM Support Bulletin CVE: CVE-2020-4668 NVD summary: IBM Sterling B2B Integrator Standard Edition 6.0.0.0 through 6.0.3.5, 6.1.0.0 through 6.1.0.3, and 6.1.1.0 is vulnerable to cross-site request forgery which could allow an […]

Read more
Oracle Linux 8 — bind — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — bind — security and stability fixes — required update (ELSA-2019-3552)

🟢 Low   ⏱ 5–15 min  Last verified: 25 September 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-3552 Related CVEs: CVE-2019-6465 CVE-2018-5745 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

Read more
Common Problems 115519

RHEL 7 Docker daemon fails to start because kernel cgroup features are missing

🟠 High   ⏱ 5–30 min  Last verified: 25 September 2020 Affected versions: RHEL 7 📖 ~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 & […]

Read more
CHAT