Suramya's Blog : Welcome to my crazy life…

October 29, 2004

Website Down due to a DDOS

Filed under: Website Updates — Suramya @ 1:39 AM

Hi Everyone,
These past few days have been pretty interesting.

Some idiot decided that it would be funny to do a Distributed Denial of Service (DDOS) attack on my IP range. So for the past 2 days all the IP’s we have are getting flooded with packets from about 100 – 150 hosts at a time. This obviously stopped our internet access.

At first we thought that it was an infected computer in our building network that was using up all the bandwidth (This has happened before) but then our ISP told me that it was our IP causing the problem so we started shuting down all the computers not being used. After about 2 hours of troubleshooting we found out that most of the traffic was incoming and wasn’t our fault. Our router was dropping all the packets.

So we called CNG Internet again and told them what was going on. Instead of helping us fix the problem the tech over there started yelling at us saying that we must have done something to be a target of a DDOS. Then the entire staff at CNG just disappeared, we tried calling them, sent them emails but got no response from them till today afternoon.

I noticed that the attack was focusing on our primary IP address so we started playing musical chairs with the IP addresses to give us net access (We kept routing the traffic to an IP different than the one under attack). This finally gave us network access back.

But I left my webserver offline for a while and used this time to replace the server with a new one that doesn’t crash so often. ๐Ÿ™‚ I am slowly reinstalling all the software required on the server and until thats done some parts of the site won’t work.

Well this is all for now. Will post more later.

– Suramya

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