Logging Monitoring

SLES 12 — tcpdump — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — tcpdump — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 2 November 2020 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2022:1765-1 (see also SUSE bugzilla) Related CVEs: CVE-2018-16301 CVE-2020-8037 CVE-2015-0261 CVE-2015-2153 CVE-2015-2154 CVE-2015-2155 CVE-2016-7922 CVE-2016-7923  +12 more Upstream summary: The command-line argument parser in tcpdump before 4.99.0 has a buffer overflow in […]

Read more
How to Install Apache on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Install Apache on Oracle Linux 8

Introduction Oracle Linux 8 ships with a stable, security-hardened base that makes deploying install apache on oracle linux 8 both straightforward and auditable. This tutorial covers the complete procedure for how to Install Apache on Oracle Linux 8, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. […]

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

Oracle Linux 8 — dovecot — vulnerability — patch and remediation guide (ELSA-2019-2822)

🟠 High   ⏱ 15–60 min  Last verified: 2 November 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-2822 Related CVEs: CVE-2019-11500 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
Common Problems 112612

Windows Server 2019 – Password policy change blocked by domain functional level – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 2 November 2020 Affected versions: Windows Server 2019 📖 ~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
How to Move a WPAR Between Systems on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Move a WPAR Between Systems 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 move a wpar between systems on ibm aix 7.1 […]

Read more
Oracle Linux 8 — openjpeg2 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — openjpeg2 — vulnerability — patch and remediation guide (ELSA-2021-4251)

🟡 Medium   ⏱ 10–30 min  Last verified: 2 November 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-4251 Related CVEs: CVE-2018-5727 CVE-2020-27823 CVE-2020-27814 CVE-2018-20845 CVE-2019-12973 CVE-2020-27824 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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

Oracle Linux 8 — sysstat — vulnerability — patch and remediation guide (ELSA-2020-4638)

🟢 Low   ⏱ 5–15 min  Last verified: 2 November 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-4638 Related CVEs: CVE-2019-16167 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
Oracle Linux 8 — java-11-openjdk — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — java-11-openjdk — security and stability fixes — required update (ELSA-2023-5742)

🟡 Medium   ⏱ 10–30 min  Last verified: 1 November 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-5742 Related CVEs: CVE-2023-22081 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
How to Configure Grafana Loki on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Configure Grafana Loki on Oracle Linux 8

Introduction This tutorial demonstrates how to Configure Grafana Loki on Oracle Linux 8 on Oracle Linux 8. 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 Oracle Linux 8 system with the default […]

Read more
How to Use cron and at Scheduling on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Use cron and at Scheduling 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 use cron and at scheduling on ibm aix 7.1 […]

Read more
CHAT