Thursday, March 5, 2020

DDoS Attacks Be Prevented?

How did GitHub survive that massive DDoS attack? Planning and preparation, of course. After 10 minutes of intermittent outages, the GitHub servers activated their DDoS mitigation service. The mitigation service rerouted incoming traffic and scrubbed the malicious packets, and about 10 minutes later the attackers gave up.

In addition to paying for DDoS mitigation services from companies like Cloudflare and Akamai, you can employ your standard endpoint security measures. Patch your servers, keep your Memcached servers off the open internet, and train your users to recognize phishing attacks.

The PopVote DDoS attack was carried out in 2014 and targeted the Hong Kong-based grassroots movement known as Occupy Central. The movement was campaigning for a more democratic voting system.

In response to their activities, attacker(s) sent large amounts of traffic to three of Occupy Central’s web hosting services, as well as two independent sites, PopVote, an online mock election site, and Apple Daily, a news site, neither of which were owned by Occupy Central but openly supported its cause. Presumably, those responsible were reacting to Occupy Central’s pro-democracy message.

The attack barraged servers with packets disguised as legitimate traffic, and was executed with not one, not two, but five botnets. This resulted in peak traffic levels of 500 gigabits per second.

You can turn on Black Hole Routing during a DDoS attack to send all traffic to the abyss. You can set up rate limiting to cap the number of requests a server gets in a short amount of time. A properly configured firewall can also protect your servers.
More Info: how does a ddos work

No comments:

Post a Comment