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<title><![CDATA[Linux服务器维护 统计连接数查看外部IP]]></title> 
<author>jed &lt;jed521@163.com&gt;</author>
<category><![CDATA[服务器技术]]></category>
<pubDate>Wed, 29 Sep 2010 05:53:05 +0000</pubDate> 
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	Linux服务器维护 统计连接数查看外部IP 服务器上的一些统计数据：<br/><br/>1)统计80端口连接数<br/><div class="code"><br/>netstat -nat&#124;grep -i &quot;80&quot;&#124;wc -l&nbsp;&nbsp;<br/></div><br/>2）统计httpd协议连接数<br/><div class="code"><br/>ps -ef&#124;grep httpd&#124;wc -l <br/></div><br/>3）、统计已连接上的，状态为“established'<br/><br/><div class="code"><br/>netstat -na&#124;grep ESTABLISHED&#124;wc -l&nbsp;&nbsp;<br/></div><br/>4)、查出哪个IP地址连接最多,将其封了.<br/><div class="code"><br/>netstat -na&#124;grep ESTABLISHED&#124;awk &#039;&#123;print $5&#125;&#039;&#124;awk -F: &#039;&#123;print $1&#125;&#039;&#124;sort&#124;uniq -c&#124;sort -r&nbsp;&nbsp; <br/><br/><br/>netstat -na&#124;grep SYN&#124;awk &#039;&#123;print $5&#125;&#039;&#124;awk -F: &#039;&#123;print $1&#125;&#039;&#124;sort&#124;uniq -c&#124;sort -r&nbsp;&nbsp; <br/><br/></div><br/>Tags - <a href="http://www.dzhope.com/tags/linux/" rel="tag">linux</a> , <a href="http://www.dzhope.com/tags/%25E8%25BF%259E%25E6%258E%25A5/" rel="tag">连接</a>
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<pubDate>Thu, 01 Jan 1970 00:00:00 +0000</pubDate> 
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