Matts Design Blog Salem-News.com
Over the last few months I have come to the realization that the only way to reduce spam and other cyber crimes is to not only do what I can to keep them from using my services for those purposes but to do what I can to keep them from using others.
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On Monday November 5th I realized we were undergoing a Denial of Service attack aimed at draining bandwidth. I believe it started rather weak in October but I began to notice the Kilobytes of traffic had grown far higher then it should based on other traffic statistics. See: Day 1 Analyzing and adjusting on day two: Day Two
Yester day I noticed that Salem-News.com was under a Distributed Denial of Service Attack (DDOS) that seemed to be aimed at using up bandwidth as at its highest rate was no more than 60 per minute and averaging less than 30 per minute, all aimed at images. See: Bandwidth DDOS Attack.
After stopping the bandwidth waste with mod_rewrite it was time to poor through the log files to try and get some more information on how this was happening.
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Sunday(Nov. 4th) while reviewing the stats for Salem-News I noticed the KiloBytes of traffic for the day had more than doubled without a corresponding doubling of the page views.
An investigation began into what could be causing this to happen. Some possible reasons that came to mind:
It ended up being what I believe to be a large scale bandwidth sapping DDOS?
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While I spend most of my time adding or fixing features on Salem-News.com, every now and then I have to remember to check for validity and optimization.