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.
Facebook is undergoing one of its most widespread
and persistent system outages, with users across the globe unable to
access its social network and services from Instagram to Messenger for
much of Wednesday. From about noon New York time, users encountered only partially
loaded pages or no content at all, accompanied by a message saying an
error had occurred. Several brand marketers tweeted that Facebook’s
ad-buying system was down as well. As of about 6.30pm New York time,
Facebook said it was still investigating the overall impact, “including
the possibility of refunds for advertisers”.
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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