MDDHosting Forums: [Resolved] Large DDoS on Cypress Server - MDDHosting Forums
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[Resolved] Large DDoS on Cypress Server
#1
Posted 15 February 2011 - 06:37 PM
We've been alerted to a large DDoS attack that is hitting one of our customers on the Cypress server. The attack is in excess of 1 GBPS (1,000 MBPS) and as such has been null-routed. We're still investigating to determine which site is being targeted so that we can ensure that no other accounts on the server are affected.
If you have any questions, feel free to post them here or to open a support ticket. We'll update you as we have more information to provide.
If you have any questions, feel free to post them here or to open a support ticket. We'll update you as we have more information to provide.
█ Michael Denney - MDDHosting, LLC - Professional Hosting Solutions
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#2
Posted 15 February 2011 - 06:52 PM
The IP address that is being hit is shared by several accounts - we're splitting all accounts out to their own IP addresses so that we can identify which one is under attack. This is going to take some time and we will update you.
Moving accounts off of the affected IP will also cause them to come back online - DNS caching can cause this to take an hour in some cases but generally it's pretty close to instant.
Moving accounts off of the affected IP will also cause them to come back online - DNS caching can cause this to take an hour in some cases but generally it's pretty close to instant.
█ Michael Denney - MDDHosting, LLC - Professional Hosting Solutions
█ LiteSpeed Powered - Shared, Reseller, Semi-Dedicated, and VPS
█ Incremental R1Soft CDP Backups on all shared, semi-dedicated, and VPS services!
█ http://www.mddhosting.com/ - Follow us on Twitter!
█ LiteSpeed Powered - Shared, Reseller, Semi-Dedicated, and VPS
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█ http://www.mddhosting.com/ - Follow us on Twitter!
#3
Posted 15 February 2011 - 07:02 PM
All accounts have now been assigned their own Dedicated IPs and we'll be watching for a shift in the attack.
█ Michael Denney - MDDHosting, LLC - Professional Hosting Solutions
█ LiteSpeed Powered - Shared, Reseller, Semi-Dedicated, and VPS
█ Incremental R1Soft CDP Backups on all shared, semi-dedicated, and VPS services!
█ http://www.mddhosting.com/ - Follow us on Twitter!
█ LiteSpeed Powered - Shared, Reseller, Semi-Dedicated, and VPS
█ Incremental R1Soft CDP Backups on all shared, semi-dedicated, and VPS services!
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#4
Posted 16 February 2011 - 10:36 AM
The attack hasn't shifted off of the original IP and as such we're leaving things as-is until the attack fully subsides.
█ Michael Denney - MDDHosting, LLC - Professional Hosting Solutions
█ LiteSpeed Powered - Shared, Reseller, Semi-Dedicated, and VPS
█ Incremental R1Soft CDP Backups on all shared, semi-dedicated, and VPS services!
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█ LiteSpeed Powered - Shared, Reseller, Semi-Dedicated, and VPS
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#5
Posted 17 February 2011 - 03:04 PM
The DDoS hasn't come back since the null route on the original IP was removed. We will be migrating accounts back to this IP address tonight (during off-peak times) to reduce any potential for downtime due to IP caching. If you have any questions, do open a support ticket.
█ Michael Denney - MDDHosting, LLC - Professional Hosting Solutions
█ LiteSpeed Powered - Shared, Reseller, Semi-Dedicated, and VPS
█ Incremental R1Soft CDP Backups on all shared, semi-dedicated, and VPS services!
█ http://www.mddhosting.com/ - Follow us on Twitter!
█ LiteSpeed Powered - Shared, Reseller, Semi-Dedicated, and VPS
█ Incremental R1Soft CDP Backups on all shared, semi-dedicated, and VPS services!
█ http://www.mddhosting.com/ - Follow us on Twitter!
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