How to Configure OpenSCAP Security Compliance on Debian 11

March 14, 2022
Linux
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Introduction Deploying configure openscap security compliance on debian 11 on a Debian 11 Bullseye machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Before you […]

How to Configure Core Files and Analysis on IBM AIX 7.1

March 13, 2022
IBM AIX
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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 core files and analysis on ibm aix 7.1 […]

How to Configure Grafana Alerting on Debian 11

March 13, 2022
Linux
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Introduction Deploying configure grafana alerting on debian 11 on a Debian 11 Bullseye machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Before you begin, […]

How to Install Ruby on Rails on CentOS Stream 9

March 11, 2022
CentOS
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Introduction CentOS Stream 9 ships with a stable, security-hardened base that makes deploying install ruby on rails on centos stream 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Install Ruby on Rails on CentOS Stream 9, including dnf module streams where applicable, systemd unit management, and the firewalld rules […]

How to Install VictoriaMetrics as a Prometheus Alternative on RHEL 7

March 11, 2022
Linux
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Prometheus has become the de-facto standard for metrics collection in Linux environments, but it is not the only option. VictoriaMetrics is a high-performance, cost-efficient time-series database that is fully compatible with PromQL, accepts Prometheus remote_write, and offers significant advantages in storage compression, ingestion throughput, and memory usage. A single-node VictoriaMetrics binary can replace or complement […]

How to Configure Audit Logging on CentOS Stream 9

March 10, 2022
CentOS
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Introduction This tutorial demonstrates how to Configure Audit Logging on CentOS Stream 9 on CentOS Stream 9. 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 CentOS Stream 9 system with the default […]

How to Install and Configure FreeIPA on RHEL 8

March 8, 2022
Linux
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FreeIPA is Red Hat’s integrated identity management solution that bundles LDAP (389 Directory Server), Kerberos, DNS, NTP, and a certificate authority into a single coherent platform. It is the upstream project for Red Hat Identity Management (IdM) and is fully supported on RHEL 8. FreeIPA dramatically simplifies managing users, groups, hosts, and policies across a […]

Debian 11: OOM killer terminates Java service under memory pressure

March 7, 2022
Linux
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🔴 Critical ⏱ 5–30 min Last verified: 7 March 2022 Affected versions: Debian 11 📖 ~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 & […]

How to Set Up a Hyper-V Cluster on Windows Server 2012 R2

March 7, 2022
Tutorials
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How to Set Up a Hyper-V Cluster on Windows Server 2012 R2 A Hyper-V cluster combines multiple physical Hyper-V hosts into a single high-availability platform. When a host fails, the Failover Cluster service detects the failure and automatically restarts the affected virtual machines on surviving nodes — a process called failover. Windows Server 2012 R2 […]

How to Install Nginx on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Install Nginx on Debian 11 (DEBIAN-11-2)

March 6, 2022
Linux
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Introduction Debian 11 Bullseye is built around the ethos of stability and free software. Setting up install nginx on debian 11 on Bullseye leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Bullseye freeze. Follow each step carefully and the resulting […]

How to Configure OpenSCAP Security Compliance on Debian 11

How to Install Ruby on Rails on CentOS Stream 9

How to Install VictoriaMetrics as a Prometheus Alternative on RHEL 7

How to Configure Audit Logging on CentOS Stream 9

How to Install and Configure FreeIPA on RHEL 8

Debian 11: OOM killer terminates Java service under memory pressure

How to Set Up a Hyper-V Cluster on Windows Server 2012 R2

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Cpu Memory

How to Configure OpenSCAP Security Compliance on Debian 11

How to Configure Core Files and Analysis on IBM AIX 7.1

How to Configure Grafana Alerting on Debian 11

How to Install Ruby on Rails on CentOS Stream 9

How to Install VictoriaMetrics as a Prometheus Alternative on RHEL 7

How to Configure Audit Logging on CentOS Stream 9

How to Install and Configure FreeIPA on RHEL 8

Debian 11: OOM killer terminates Java service under memory pressure

How to Set Up a Hyper-V Cluster on Windows Server 2012 R2

How to Install Nginx on Debian 11 (DEBIAN-11-2)

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