February 2021 - Page 47 of 62

How to Manage Users and Groups with useradd, groupadd and passwd on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Manage Users and Groups with useradd, groupadd and passwd on RHEL 8

Managing users and groups is one of the most fundamental tasks for any Linux system administrator. On Red Hat Enterprise Linux 8, the useradd, groupadd, and passwd commands provide powerful options for creating and controlling accounts. Understanding how to set password policies, manage group memberships, and configure account aging will help you maintain a secure, […]

Read more
Oracle Linux 8 — webkit2gtk3 — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — webkit2gtk3 — security and stability fixes — required update (ELSA-2022-7704)

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-7704 Related CVEs: CVE-2022-26709 CVE-2022-26716 CVE-2022-22629 CVE-2022-26710 CVE-2022-30293 CVE-2022-22628 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

Read more
Common Problems 114057

RHEL 10 – NFS exports inaccessible due to firewalld zone mismatch – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 20 May 2026 Affected versions: RHEL 10 📖 ~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
Arch Linux — intel-ucode — multiple vulnerabilities (13 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — intel-ucode — multiple vulnerabilities (13 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202106-34 Related CVEs: CVE-2020-24513 CVE-2020-24512 CVE-2020-24511 CVE-2020-24489 CVE-2020-0549 CVE-2020-0548 CVE-2020-0543 CVE-2019-11139  +5 more Upstream summary: Type: multiple issues. Status: Fixed. Affected: 20210216-1. Fixed in: 20210608-1. Group: AVG-2051. Table of contents […]

Read more
Common Problems 113904

RHEL 10 – RPM Database Locked by Stale Process – Fast Recovery Steps

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: RHEL 10.0 RHEL 10.1 📖 ~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 […]

Read more
Common Problems 113427

Windows Server 2012 R2 — MSI install rolls back at completion stage due to custom action failure — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 04 June 2027 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 […]

Read more
Ubuntu 18.04 — apache-log4j2 — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — apache-log4j2 — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5222-1 Related CVEs: CVE-2021-44832 CVE-2021-45105 CVE-2021-44228 Upstream summary: It was discovered that Apache Log4j 2 was vulnerable to remote code execution (RCE) attack when configured to use a JDBC Appender […]

Read more
Common Problems 113088

Windows Server 2016 – VMMQ packet reordering from NIC driver regression – Fix and Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 20 May 2026 Affected versions: Windows Server 2016 📖 ~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 Deploy a Laravel Application on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Deploy a Laravel Application on Oracle Linux 8

Introduction This tutorial demonstrates how to Deploy a Laravel Application 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 […]

Read more
CHAT