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How to Set Up ModSecurity WAF with Apache on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Set Up ModSecurity WAF with Apache on FreeBSD 12

Introduction How to Set Up ModSecurity WAF with Apache on FreeBSD 12 is a core administration task for any FreeBSD 12 server operator. FreeBSD 12 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf […]

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Oracle Linux 8 — python27:2.7 security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — python27:2.7 security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2020-1605)

🟡 Medium   ⏱ 10–30 min  Last verified: 16 November 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-1605 Related CVEs: CVE-2018-18074 CVE-2018-20852 CVE-2019-16056 CVE-2019-11324 CVE-2018-20060 CVE-2019-11236 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Common Problems 115111

RHEL 8 sudoers Syntax Error Breaking Privileged Access

🟡 Medium   ⏱ 5–30 min  Last verified: 16 November 2020 📖 ~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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Common Problems 113567

Windows Server 2012 R2 — Feature on Demand Payload Missing Blocks Security Update Chain — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 16 November 2020 Affected versions: Windows Server 2012 R2 📖 ~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 […]

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How to Set Up Workload Manager (WLM) on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Set Up Workload Manager (WLM) 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 set up workload manager (wlm) on ibm aix 7.1 […]

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How to Configure Btrfs Snapshots on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Configure Btrfs Snapshots on Oracle Linux 8

Introduction Oracle Linux 8 ships with a stable, security-hardened base that makes deploying configure btrfs snapshots on oracle linux 8 both straightforward and auditable. This tutorial covers the complete procedure for how to Configure Btrfs Snapshots on Oracle Linux 8, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for […]

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Pandas merge() - Merging Two DataFrame Objects — step-by-step Python tutorial on Progressive Robot

Pandas merge() – Merging Two DataFrame Objects

URL: https://www.progressiverobot.com/pandas-merge-two-dataframe/ Pandas DataFrame merge() function is used to merge two DataFrame objects with a database-style join operation. The joining is performed on columns or indexes. If the joining is done on columns, indexes are ignored. This function returns a new DataFrame and the source DataFrame objects are unchanged. Pandas DataFrame merge() Function Syntax The […]

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