2026 - Page 2226 of 2293

How to Install VictoriaMetrics as a Prometheus Alternative on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install VictoriaMetrics as a Prometheus Alternative on RHEL 7

  • January 17, 2026
  • 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 […]

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How to Configure Collectd on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Configure Collectd on FreeBSD 15

  • January 17, 2026
  • FreeBSD
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Introduction FreeBSD 15 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up configure collectd 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 walks through […]

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How to Set Up Alertmanager with PagerDuty and Slack Integration on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Set Up Alertmanager with PagerDuty and Slack Integration on RHEL 7

  • January 17, 2026
  • Linux
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Prometheus generates alerts, but it is Alertmanager that handles routing, deduplication, grouping, and delivery to your notification channels. Without a properly configured Alertmanager, even the most thorough alerting rules in Prometheus are useless — they fire into the void. Integrating Alertmanager with both PagerDuty and Slack gives you a two-tier notification strategy: high-severity incidents page […]

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How to Set Up Alertmanager Email Notifications on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Set Up Alertmanager Email Notifications on FreeBSD 15

  • January 17, 2026
  • FreeBSD
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Introduction How to Set Up Alertmanager Email Notifications 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 […]

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How to Install and Configure cAdvisor for Container Monitoring on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install and Configure cAdvisor for Container Monitoring on RHEL 7

  • January 17, 2026
  • Linux
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How to Install and Configure cAdvisor for Container Monitoring on RHEL 7 cAdvisor (Container Advisor) is an open-source agent developed by Google that collects, aggregates, processes, and exports resource usage and performance metrics for running containers. It provides a real-time web UI and a Prometheus-compatible metrics endpoint, making it the standard solution for container observability […]

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How to Configure cAdvisor Container Metrics on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Configure cAdvisor Container Metrics on FreeBSD 15

  • January 17, 2026
  • FreeBSD
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Introduction How to Configure cAdvisor Container Metrics 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 […]

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How to Build Grafana Dashboards for Linux Server Metrics on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Build Grafana Dashboards for Linux Server Metrics on RHEL 7

  • January 17, 2026
  • Linux
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How to Build Grafana Dashboards for Linux Server Metrics on RHEL 7 Grafana is the de facto standard for visualising time-series data collected by Prometheus, InfluxDB, Graphite, and dozens of other data sources. A well-constructed Grafana dashboard can surface CPU saturation, memory pressure, disk I/O bottlenecks, and network anomalies at a glance, dramatically reducing the […]

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How to Install Cockpit Web Console on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Install Cockpit Web Console on FreeBSD 15

  • January 17, 2026
  • FreeBSD
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Introduction How to Install Cockpit Web Console 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 […]

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How to Configure Blackbox Exporter on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Configure Blackbox Exporter on FreeBSD 15

  • January 17, 2026
  • FreeBSD
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Introduction Deploying configure blackbox exporter 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 + ports approach […]

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How to Configure SNMP Monitoring on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Configure SNMP Monitoring on RHEL 7

  • January 17, 2026
  • Linux
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How to Configure SNMP Monitoring on RHEL 7 Simple Network Management Protocol (SNMP) is one of the most widely supported protocols for monitoring network devices, servers, storage appliances, and virtually any managed infrastructure component. Configuring SNMP on Red Hat Enterprise Linux 7 allows your monitoring platform — whether Zabbix, LibreNMS, Nagios, or Prometheus with the […]

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