Bitcoin Forum
January 19, 2019, 07:06:12 AM *
News: Latest Bitcoin Core release: 0.17.1 [Torrent]
   Home   Help Search Login Register More  
Pages: [1]
Author Topic: ** back online after DDoS attack **  (Read 1269 times)
Sr. Member
Offline Offline

Activity: 446
Merit: 251

View Profile WWW
June 29, 2011, 11:56:51 PM

As many of our user's have noticed service has been less than good the last few days.  This was caused by a DDoS attack.  We have managed to get control of the situation by notifying hosting providers and blocked several thousand IP addresses in several dozen class C networks.

The main Russian ISP that the attacks were coming from is Yandex LLC.  When we blocked the attackers IP address or an entire class C network, within minutes the attacker would be using a different address in a completely different class C network.  After doing this song and dance for several hours, we realized that it was mostly coming from Yandex and sent off an e-mail to their abuse address.  We haven't received a response from them, so we took drastic action and blocked every IP address owned by Yandex.  After blocking Yandex, everything seems to have returned to normal.  If you are a user in our pool coming from this network, please PM me your IP address and I will white-list it.

We'd like to apologize to our users for the inconvenience of this attack.  We're keeping a close eye on logs and traffic analyzers to monitor for any new attacks so we can block them before they disrupt the pool any further. 

Thank you for your understanding and tolerance for the situation, we appreciate it.

Best Regards Smiley

Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction. Advertise here.
Full Member
Offline Offline

Activity: 140
Merit: 138

Firstbits: 1samr7

View Profile
June 30, 2011, 02:11:18 AM

It sure wasn't down for long, I saw less than an hour of downtime.  Kudos on the quick response, Fairuser.
Offline Offline

Activity: 83
Merit: 10

View Profile
June 30, 2011, 10:02:42 PM

Glad you guys have this under control and glad you keep your users informed. Your transparency is appreciated. Smiley
Jack of Diamonds
Sr. Member
Offline Offline

Activity: 252
Merit: 250

View Profile
July 01, 2011, 01:18:02 AM

Yandex abuse team doesn't give a shit about western companies or people emailing them.

They even have $USD rates on blackhat IRC for which they will let you use
domain ranges and bandwidth for spam, fraud, denial of service or other illegal activity without alerting the authorities or pulling the plug on you

These aren't just individual PC's or infections, they are renting their content crawlers in Ukraine and Russia for high bidders.

Pages: [1]
Jump to: is not available or authorized for sale. Do not believe any fake listings.
Sponsored by , a Bitcoin-accepting VPN.
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!