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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Summary of the AWS Service Event in the US East Region
We’d like to share more about the service disruption which occurred
last Friday night, June 29th, in one of our Availability Zones in the US
East-1 Region. The event was triggered during a large scale electrical
storm which swept through the Northern Virginia area. We regret the
problems experienced by customers affected by the disruption and, in
addition to giving more detail, also wanted to provide information on
actions we’ll be taking to mitigate these issues in the future. Our US East-1 Region consists of more than 10 datacenters
structured into multiple Availability Zones. These Availability Zones
are in distinct physical locations and are engineered to isolate failure
from each other. Last Friday, due to weather warnings of the
approaching storm, all change activity in the US East-1 Region had been
cancelled and extra personnel had been called into the datacenters for
the evening.
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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