Storage Disk

Common Problems 112430

Windows Server 2019 Disk Queue Length Sustained Above Threshold on VM Hosts – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 2 August 2019 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 Install and Configure SQLite on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install and Configure SQLite on RHEL 7

How to Install and Configure SQLite on RHEL 7 SQLite is a self-contained, serverless, zero-configuration relational database engine that stores an entire database as a single file on disk. Unlike PostgreSQL or MySQL, SQLite requires no dedicated daemon, no user accounts, and no network configuration — the database engine is a library linked directly into […]

Read more
How to Configure Syslog on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Configure Syslog 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 configure syslog on ibm aix 7.1 on IBM AIX […]

Read more
How to Schedule Automated Tasks with cron and anacron on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Schedule Automated Tasks with cron and anacron on RHEL 8

Automating repetitive tasks is one of the core responsibilities of a Linux system administrator. Red Hat Enterprise Linux 8 provides several scheduling mechanisms: the venerable cron daemon for recurring jobs, anacron for machines that are not always running, the at command for one-off deferred tasks, and systemd timers for tighter integration with the service manager. […]

Read more
How to Set Up Automatic SSH Login Banners on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Set Up Automatic SSH Login Banners on RHEL 7

How to Set Up Automatic SSH Login Banners on RHEL 7 Displaying a clear, legally appropriate banner when users connect to a Linux server over SSH is both a security best practice and a compliance requirement in many regulated environments such as PCI-DSS, HIPAA, and government frameworks. On Red Hat Enterprise Linux 7, there are […]

Read more
How to Use Percona XtraBackup for MySQL Hot Backups on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Use Percona XtraBackup for MySQL Hot Backups on RHEL 8

Percona XtraBackup is an open-source hot backup utility for MySQL and Percona Server that performs physical backups without locking tables or interrupting active queries on InnoDB tables. Unlike mysqldump, which produces logical SQL dumps, XtraBackup copies InnoDB data files directly and replays the transaction log to bring the backup to a consistent state, making it […]

Read more
Common Problems 115076

RHEL 8 rsyslog Not Forwarding Logs To Remote SIEM

🟡 Medium   ⏱ 5–30 min  Last verified: 30 July 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 & Cross-Refs References & Further […]

Read more
How to Set Up Windows Server 2019 with Grafana — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Set Up Windows Server 2019 with Grafana

How to Set Up Windows Server 2019 with Grafana Grafana is an open-source analytics and visualization platform that, when combined with a time-series data source, provides powerful dashboards for Windows Server 2019 monitoring. The typical architecture uses Windows Exporter (formerly wmi_exporter) to expose Prometheus-compatible metrics from Windows Server 2019, a Prometheus server to scrape and […]

Read more
Common Problems 115599

RHEL 7 swap not activated at boot due to incorrect UUID in fstab

🟡 Medium   ⏱ 5–30 min  Last verified: 29 July 2019 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
How to Set Up Harbor Container Registry on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Set Up Harbor Container Registry on FreeBSD 12

Introduction Deploying set up harbor container registry on freebsd 12 on a FreeBSD 12 machine differs from Linux in several important ways: packages come from the FreeBSD Ports Collection or the binary pkg repository, services are registered in /etc/rc.conf via sysrc(8), and firewall rules are written in pf.conf(5) syntax. This tutorial stays entirely within the […]

Read more
CHAT