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在我的Web服务器上获得大量的点击,并取消了我的httpd。 可能的DDoS?

我在我的服务器上有很多点击。 这台服务器通常几乎没有stream量,但每当我将服务器备份时,都会有不断的点击。 我得到以下错误第一ip_conntrack: table full, dropping packet然后我的httpd用完内存和我的服务器变得没有反应。 任何想法如何解决它? 我access_log最新的头。 我将http更改为hxxp 122.193.164.5 – – [27/Mar/2011:23:48:35 -0700] "GET hxxp://pubs.acs.org/templates/jsp/_style2/_achs/css/atypon-main.css HTTP/1.0" 200 174299 "hxxp://pubs.acs.org/doi/abs/10.1021/ac100095u" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022)" 218.29.188.217 – – [27/Mar/2011:23:48:38 -0700] "GET hxxp://rotator.adjuggler.com/servlet/ajrotator/913831/0/vh?ajecscp=1301294917498&z=pdn&dim=753179&kw=&click= http://ad.yieldads.com/clk?2,13%3B5900475f5cba1a74%3B12efb38a54b,0%3B%3B%3B1304299909,cl1GAPp3GABp04QAAAAAAEfOIQAAAAAAAgAAAAIAAAAAAP8AAAABGF1nJgAAAAAAJ6sXAAAAAAD1YSwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAn.A8AAAAAAAIAAwAAAAAAS6U4-y4BAAAAAAAAADY2ZjM3ZGE0LTU5MDctMTFlMC04MzUwLTAwMzA0OGQ3MjBhOABmlSoAAAA=,,http%3A%2F%2Fwww.healthcarefinancenews.com%2F , HTTP/1.0" 200 1181 " http://ad.yieldmanager.com/iframe3?cl1GAPp3GABp04QAAAAAAEfOIQAAAAAAAgAAAAIAAAAAAP8AAAABGF1nJgAAAAAAJ6sXAAAAAAD1YSwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAn.A8AAAAAAAIAAwAAAAAAwMqhRbbzxT.AyqFFtvPFP1yPwvUoXM8.XI.C9Shczz9mZmZmZmbWP2ZmZmZmZtY.AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAbr8TXwhPZCb-NEWYczMEV.VtRMDgbQFgGd6CwAAAAAA==,,http%3A%2F%2Fwww.healthcarefinancenews.com%2F,Z%3D300x250%26s%3D1603578%26_salt%3D954499605%26B%3D12%26m%3D2%26u%3Dhttp%253A%252F%252Fwww.healthcarefinancenews.com%252F%26r%3D1,66f37da4-5907-11e0-8350-003048d720a8 […]