Amsterdam Cloudflare servers suffer large-scale ddos-attacks

The Amsterdam servers of the content delivery network Cloudflare have for the fifth time in a short time had to deal with large-scale ddos attacks. The attacks were the sites that make use of Cloudflare’s servers are temporarily not accessible.

The most recent attack was Tuesday morning around half 10 in the morning. In addition, customers who make use of the Amsterdam servers of Cloudflare, this attack also a number of London servers affected. After a little less than two hours, the attack would, according to Cloudflare, but it turns out that the Amsterdam server of Cloudflare at the time of writing only sporadically accessible. Although there is not known in what way the attack against Cloudflare was carried out, it is likely that ntp amplification is used. This could allow an attacker, his attack power more than two hundred times increase.

Matthew Prince, ceo of Cloudflare, let in a declaration before Ispam know that the traffic of paying Cloudflare customers during an attack last Sunday through Cloudflares datacenters in London, Paris and Frankfurt was led. This is so that the effect of the attack for paying customers as low as possible would remain. As soon as the severity of the attack diminished, were all the services of paying customers through the Amsterdam servers.

In February of this year were with one of the largest ddos attacks ever, even though Dutch Cloudflare servers affected. By a vulnerability in the ntp protocol allows servers to which this protocol run by an attacker to be used to his own capacity.

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