authentication

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

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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How to Set Up Uptime Kuma for Service Monitoring on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Set Up Uptime Kuma for Service Monitoring on RHEL 7

How to Set Up Uptime Kuma for Service Monitoring on RHEL 7 Uptime Kuma is a self-hosted, open-source uptime monitoring tool that provides a clean web interface for tracking the availability of HTTP endpoints, TCP ports, DNS records, and more. It supports multiple notification channels including email, Slack, and Telegram, and includes a built-in public […]

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How to Configure syslog-ng for Centralised Syslog on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Configure syslog-ng for Centralised Syslog on RHEL 7

How to Configure syslog-ng for Centralised Syslog on RHEL 7 Every Linux system generates a continuous stream of log data from the kernel, system services, and applications. On a single host, rsyslog handles this adequately, but when you need to aggregate logs from dozens or hundreds of servers into a central repository, filter them intelligently, […]

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How to Set Up Yubikey Authentication on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Set Up Yubikey Authentication on FreeBSD 15

Introduction How to Set Up Yubikey Authentication 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 Monitor MySQL with Percona Monitoring and Management on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Monitor MySQL with Percona Monitoring and Management on RHEL 7

How to Monitor MySQL with Percona Monitoring and Management on RHEL 7 Percona Monitoring and Management (PMM) is a free, open-source platform for monitoring MySQL, MariaDB, PostgreSQL, and MongoDB. It combines Grafana dashboards, Prometheus metrics collection, and Query Analytics (QAN) into a single integrated UI. Unlike generic monitoring tools, PMM understands database internals and surfaces […]

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How to Install and Configure Nagios Core on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install and Configure Nagios Core on RHEL 7

How to Install and Configure Nagios Core on RHEL 7 Nagios Core is one of the most widely deployed open-source infrastructure monitoring systems in the world. It provides comprehensive monitoring of hosts, services, and network devices, alerting administrators when things go wrong and when they recover. On RHEL 7, setting up Nagios Core from source […]

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How to Install InfluxDB and Telegraf on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install InfluxDB and Telegraf on RHEL 7

How to Install InfluxDB and Telegraf on RHEL 7 InfluxDB is a purpose-built time series database optimised for the high-write workloads that are typical in infrastructure monitoring, IoT data collection, and application performance tracking. Unlike general-purpose databases, InfluxDB stores measurements indexed by timestamp and tag values, enabling sub-millisecond queries across billions of data points. Telegraf […]

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How to Set Up Loki and Promtail for Log Aggregation on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Set Up Loki and Promtail for Log Aggregation on RHEL 7

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 […]

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How to Install Graylog for Centralised Log Management on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install Graylog for Centralised Log Management on RHEL 7

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 […]

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How to Set Up Two-Factor Authentication with Google Authenticator on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Set Up Two-Factor Authentication with Google Authenticator on FreeBSD 15

Introduction Deploying set up two-factor authentication with google authenticator 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 […]

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