A beginner’s guide to my favorite linux system monitoring/troubleshooting tool: Glances. By the end of this video you’ll know the basics, and be able to quickly identify CPU, Memory, Disk/IO, and other issues on a machine.
Ntopng is a free and open source software for monitoring network traffic that provides a web interface for real-time network monitoring. It is the next generation version of the original ntop that shows the network usage, similar to what the popular top Unix command does. It supports different operating system like, Unix, Linux, Mac OS,
Suricata is an IDS / IPS capable of using Emerging Threats and VRT rule sets like Snort and Sagan. This tutorial shows the installation and configuration of the Suricata Intrusion Detection System on an Ubuntu 18.04 (Bionic Beaver) server. In this howto we assume that all commands are executed as root. If not you need
This tutorial shows how you can mirror your web site from your main web server to a backup server that can take over if the main server fails. We use the tool rsync for this, and we make it run through a cron job that checks every x minutes if there is something to update
Ngrep (network grep) is a simple yet powerful network packet analyzer. It is a grep-like tool applied to the network layer – it matches traffic passing over a network interface. It allows you to specify an extended regular or hexadecimal expression to match against data payloads (the actual information or message in transmitted data, but
