Steemit.com - Distributed Denial of Service; DDoS). Attack! What does it mean? Intentionally caused server overloads
(Translation only) Up vote should go to Me-Do post#
https://steemit.com/@me-do
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Distributed Denial of Service short; DDoS
Such attacks have a data volume of more than 200 to 300 GBiT / s requests per second ...
With this DDoS attack, an Internet service that should actually be online should be flooded with loads of inquiries (server overloads). There are many different reasons for the non-availability of an online service, the most frequent cause of an Internet service is the overloading of the data network. This can be unintended or targeted with a focused attack on the servers of the data network.
Unintentional overloading, with a low-traffic site, eg. With a report which appeals to a large audience and caused by the sudden increase (user) to the website, it leads to their overloading and thus to the service denial Unintended server overloads. In the netjargon "Slashdot effect" it is also jokingly compared with a DDOS attack. Especially with tweets of popular users of the network Twitter, there are failures.
Today, cybercriminals offer such attacks for sale.
DDoS attacks, does not aim at your data (like password, personal data ect.) The attack ultimately aims only that the network is overloaded with loads of queries slower, so the data is always moved backwards, so the network is not up to date can be held.
(DDoS), a service blockage, denying further processing of the service, so it is also derived from the English Distributed Denial of Service (DDoS) ) Server overloads.
Here in Steemit we have nothing to fear. For example At Kraken / Exchange there was also such an incident!
Remark; sometimes also targets such an attack (DDoS) to divert, before the actual target! The administration team personnel are distracted before the true attack attempt which is intended to ensure that they are distracted (administration team) before the true DDoS attack so that our Steemit.com a blackout (server overloads) As experienced today ...
If responses of a regular system are delayed, queries can be compromised by their own, fake answers. An example of this is the hijacking of foreign domains by supplying fake DNS responses.
Here in Steemit we have nothing to fear. For example With Kraken the exchange there was also such an incident, there was also an attack carried out, there it was substantially worse. As said by the vast amount of inquiries, the network does not run like smeared. Due to this attack, the stop loss and buy orders were not executed in time because the network denied service or carried out too late, which meant that many traders were not able to get in or out of their Orters in time, where they placed their stop orders or buy orders.
DDOS attacks are carried out in a targeted manner, usually with the intention of making the provided platform functionally inoperative. First attacks of DDoS, mainly protest actions were sometimes also simply for fun, nowadays such cybercriminals are offered for purchase. Through such attacks, it often came before the server operator extorted (money payment) or it was simply and simply to damage competitors.
Are there countermeasures?
They exist! Here some examples;
secure passwords for routers
Universal Plug and Play (UPnP) and disable unused services.
You can also enter an IP address on a blocking list
Firewall can also automatically detect and block such simple attacks.
good border routers should also be able to filter invalid sender addresses to prevent DOS attacks
When choosing the provider, one is best to look for a basic protection against DDOS attacks.
cost-intensive countermeasures against such attacks, so-called server load distributions.
Such attacks have already reached a volume of more than 200 to 300 GBiT / s, for such attacks there is also a countermeasure, the use of a filter service. The use is offered by several commercial providers. According to providers, such attacks of more than 200 to 300 GBiT / s by the connections of a filter service of 400 to 500 GBit / s and the attack intercepted without major disturbances of the own data center.
Steemit certainly took an image today.
Steem's price, however, remained as good as unaffected by the incident, so it remained the whole day at $ 1.20
Thanks for the advance