Costa Tsaousis

Real-time performance monitoring, in the greatest possible detail. Netdata is the fastest way to visualize metrics. It is a resource efficient, highly optimized system for collecting and visualizing any type of real-time timeseries data, from CPU usage, disk activity, Network and QoS traffic, SQL ... [More] queries, API calls, web site visitors, etc. Netdata tries to visualize the truth of now, in its greatest detail, so that you can get insights of what is happening now and what just happened, on your systems and applications. For collecting data, it supports external plugins, even shell or node.js plugins. Any computer program, in any language, that can print a few lines of text on its standard output, can be a netdata data collector. [Less]

The fastest way to manage files with IPs, subnets and hostnames. why to use it over any other aggregate It is simpler than any other aggregate. It supports many input formats, all together in the same file. It is faster, actually a lot faster. Can reduce the subnets/prefixes to produce ... [More] high-performing netfilter/iptables ipsets. Can compare files with IPs to find if they overlap and to what degree. Can find the IPs common to a set of files. Can exclude IPs (merge a set of files while excluding all IPs matched by another set of files). This tool is behind the scenes of http://iplists.firehol.org [Less]