How to Set Up Grafana Alerting and Notification Channels on RHEL 7 Grafana’s alerting system transforms your monitoring dashboards from a passive display into an active early-warning network. When a metric crosses a threshold — CPU saturation, disk exhaustion, an elevated error rate — Grafana fires an alert and routes a notification to whichever channels […]
Introduction How to Enable ClamAV Antivirus on FreeBSD 15 is a core administration task for any FreeBSD 15 server operator. FreeBSD 15 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 for packet filtering, […]
How to Configure Prometheus Node Exporter on RHEL 7 Prometheus Node Exporter is the de facto standard agent for exposing hardware and operating system metrics from Linux servers to a Prometheus monitoring server. It collects data on CPU usage, memory consumption, disk I/O, filesystem space, network traffic, running systemd services, and much more, all via […]
Introduction How to Set Up a Certificate Authority with OpenSSL on FreeBSD 15 is a core administration task for any FreeBSD 15 server operator. FreeBSD 15 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, […]
How to Set Up Loki and Promtail for Log Aggregation on RHEL 7 Loki is a horizontally scalable, highly available log aggregation system developed by Grafana Labs. Unlike traditional log management solutions that index the full text of every log line, Loki indexes only the metadata labels attached to each log stream. This makes it […]
Introduction FreeBSD 15 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up configure gpg key management on FreeBSD 15 follows the rc.conf/service(8) paradigm rather than systemd, which means enabling a service and configuring its startup options are done differently from any Linux distribution. This guide […]
Introduction Deploying encrypt disk partitions with geli on a FreeBSD 15 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 standard base + […]
How to Install Graylog for Centralised Log Management on RHEL 7 Centralised log management is essential for any production environment. When servers, applications, and network devices each write logs independently, troubleshooting incidents becomes painfully slow. Graylog solves this by aggregating logs from every source into a single, searchable platform. Built on top of MongoDB and […]
Introduction This guide explains how to Configure auditd System Auditing on FreeBSD 15 on FreeBSD 15. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for fine-grained […]
Introduction FreeBSD 15 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up set up file integrity monitoring with mtree on FreeBSD 15 follows the rc.conf/service(8) paradigm rather than systemd, which means enabling a service and configuring its startup options are done differently from any Linux […]
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