This is the blog of Ronald Bartels that wanders on and off the subject of problem management (that is how it started). Mostly now the topics are about IoT and SD-WAN.
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The pareto of human interaction and social media
The Pareto principle (also known as the 80/20 rule) states that, for
many events, roughly 80% of the effects come from 20% of the causes.
Management consultant Joseph M. Juran suggested the principle and named
it after Italian economist Vilfredo Pareto, who noted the 80/20 connection while at the University of Lausanne in 1896, as published in his first paper, "Cours d'économie politique".
Essentially, Pareto showed that approximately 80% of the land in Italy
was owned by 20% of the population. Typically in business, "80% of sales
come from 20% of clients". Richard Koch authored the book, The 80/20 Principle,
which illustrated some practical applications of the Pareto principle
in business management and life. Mathematically, the 80/20 rule is
roughly followed by a power law distribution (also known as a Pareto
distribution) for a particular set of parameters, and many natural
phenomena have been shown empirically to exhibit such a distribution.
Firewalls are becoming increasingly important in today’s world. Hackers and automated scripts are constantly trying to invade your system and use it for Bitcoin mining, botnets or other things. To prevent these attacks, you can use a firewall on your system. IPTables is the strongest firewall in Linux because it can filter packets in the kernel before they reach the application. Using IPTables is not very easy for Linux beginners. We have created easywall - the simple IPTables web interface . The focus of the software is on easy installation and use. Access this neat software over on github: easywall
When building a DDoS mitigation service it’s incredibly tempting to think that the solution is scrubbing centers or scrubbing servers. I, too, thought that was a good idea in the beginning, but experience has shown that there are serious pitfalls to this approach. Read the post of at Cloudflare's blog: N o Scrubs: The Architecture That Made Unmetered Mitigation Possible
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