Asterisk is an open-source PBX (Private Branch Exchange) platform that handles SIP sessions, call routing, voicemail, IVR menus,…
SSH login delays of 10-30 seconds are almost always caused by reverse DNS lookups. When you connect, the…
Grafana is an open-source analytics and visualization platform that turns time-series data into actionable dashboards. Prometheus is a…
Zammad is an open-source helpdesk and ticketing system written in Ruby on Rails. It consolidates customer support requests…
An SSH key passphrase encrypts the private key file on disk so that a stolen key file alone…
VirtualBox is a free, open source Type 2 hypervisor from Oracle that lets you run multiple guest operating…
LibreNMS is an open-source network monitoring system built on PHP, MySQL/MariaDB, and SNMP. It provides auto-discovery of network…
Redis is an in-memory data structure store used as a database, cache, message broker, and streaming engine. It…
MySQL 8.4 LTS supports TLS/SSL encryption for all client-server communication, protecting data in transit from eavesdropping and man-in-the-middle…
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Nagios Core remains one of the most battle-tested infrastructure monitoring platforms available. It watches your hosts, services, and…
Running your own mail server gives you full control over email delivery, storage, and privacy. This guide walks…
