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<channel>
	<title>CODIGG &#187; Linux/Server</title>
	<atom:link href="http://www.codigg.com/category/linux/feed/" rel="self" type="application/rss+xml" />
	<link>http://www.codigg.com</link>
	<description>关注互联网，关注云计算，关注生活</description>
	<lastBuildDate>Fri, 08 Jul 2011 02:48:15 +0000</lastBuildDate>
	<generator>http://wordpress.org/?v=2.9.2</generator>
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			<item>
		<title>PHP中uniqid的性能</title>
		<link>http://www.codigg.com/2011/07/php-uniqid-performance/</link>
		<comments>http://www.codigg.com/2011/07/php-uniqid-performance/#comments</comments>
		<pubDate>Fri, 08 Jul 2011 02:47:40 +0000</pubDate>
		<dc:creator>Codigg</dc:creator>
				<category><![CDATA[Linux/Server]]></category>
		<category><![CDATA[PHP]]></category>
		<category><![CDATA[performance]]></category>
		<category><![CDATA[uniqid]]></category>

		<guid isPermaLink="false">http://www.codigg.com/?p=855</guid>
		<description><![CDATA[程序中经常使用uniqid生成唯一id，但发现加了这个函数的代码都会慢一点，仔细测试了一下，发现uniqid的more_entropy设置为true之后，性能大大提高。在不同机器上测试过。 一台普通PC机上相差30倍， 而在cpu很差的虚拟机上相差了4000倍！！！

测试代码：



?View Code PHP$t = null;

$t1 = microtime&#40;true&#41;;

<span class="readmore"><a href="http://www.codigg.com/2011/07/php-uniqid-performance/" title="PHP中uniqid的性能">阅读全文——共175字</a></span><h3>相关文章</h3><ul><li><a href="http://www.codigg.com/2010/12/php-treapdb-thrift/" title="用php操作treapdb 2010.12.7">用php操作treapdb</a>(8)</li>
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<li><a href="http://www.codigg.com/2010/04/lighttpd-expect-100-417-continue/" title="lighttpd不支持Expect: 100-continue的解决办法 2010.04.13">lighttpd不支持Expect: 100-continue的解决办法</a>(67)</li>
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<li><a href="http://www.codigg.com/2009/09/php-curl-download-filename/" title="php curl下载文件时保存原文件名 2009.09.6">php curl下载文件时保存原文件名</a>(70)</li>
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</ul><h3>最近评论</h3><ul><li><a class="commentor" href="http://udlvids.com/how-to-download-videos-from-hentai-sites/" >hentai download</a> : <a class="comment_content" href="http://www.codigg.com/2011/07/php-uniqid-performance/#comment-213921" title="View the entire comment by hentai download" >This unique web site really taken care of my conce...</a></li>
<li><a class="commentor" href="http://www.ciltsagligim.com" >cilt bakımı</a> : <a class="comment_content" href="http://www.codigg.com/2011/07/php-uniqid-performance/#comment-213830" title="View the entire comment by cilt bakımı" >hey admin thanks for fantastic and effortless unde...</a></li>
<li><a class="commentor" href="http://www.atkibere.com/" >toptan bere</a> : <a class="comment_content" href="http://www.codigg.com/2011/07/php-uniqid-performance/#comment-213780" title="View the entire comment by toptan bere" >i cant get how you'll be able to share like this a...</a></li>
<li><a class="commentor" href="http://www.hobbyilan.com/" >rc helikopter</a> : <a class="comment_content" href="http://www.codigg.com/2011/07/php-uniqid-performance/#comment-213633" title="View the entire comment by rc helikopter" >i bookmarked you in my browser admin thank you so ...</a></li>
<li><a class="commentor" href="http://somaorderonline.net" >uphoptetret</a> : <a class="comment_content" href="http://www.codigg.com/2011/07/php-uniqid-performance/#comment-213251" title="View the entire comment by uphoptetret" >Now you can enjoy the convenience of ordering from...</a></li>
</ul>]]></description>
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		<slash:comments>17</slash:comments>
		</item>
		<item>
		<title>对httpsqs的改造（支持二进制数据）</title>
		<link>http://www.codigg.com/2010/11/httpsqs-binary-data-support/</link>
		<comments>http://www.codigg.com/2010/11/httpsqs-binary-data-support/#comments</comments>
		<pubDate>Fri, 19 Nov 2010 08:11:30 +0000</pubDate>
		<dc:creator>Codigg</dc:creator>
				<category><![CDATA[Linux/Server]]></category>
		<category><![CDATA[PHP]]></category>
		<category><![CDATA[httpsqs]]></category>

		<guid isPermaLink="false">http://www.codigg.com/?p=827</guid>
		<description><![CDATA[张宴(http://blog.s135.com) 开发了httpsqs(http://blog.s135.com/httpsqs_1_3/) ， 简单方便高效，但是不直接支持二进制，如

&#60;pre lang=&#8221;bash&#8221;&#62;

curl http://host:port/?name=xxx&#38;opt=put&#38;data=a%00b

&#60;/pre&#62;

花了点时间画蛇添足，将httpsqs改为支持二进制了。

<span class="readmore"><a href="http://www.codigg.com/2010/11/httpsqs-binary-data-support/" title="对httpsqs的改造（支持二进制数据）">阅读全文——共698字</a></span><h3>相关文章</h3><ul><li>0</li></ul><h3>最近评论</h3><ul><li><a class="commentor" href="http://www.willowvalleyretirement.com" >retirement communities pa</a> : <a class="comment_content" href="http://www.codigg.com/2010/11/httpsqs-binary-data-support/#comment-214034" title="View the entire comment by retirement communities pa" >A formidable share, I simply given this onto a col...</a></li>
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<li><a class="commentor" href="http://www.wowgoldjournal.com/" >Robert Camaeho</a> : <a class="comment_content" href="http://www.codigg.com/2010/11/httpsqs-binary-data-support/#comment-208390" title="View the entire comment by Robert Camaeho" >I enjoy what you guys are up too. Such clever work...</a></li>
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<li><a class="commentor" href="http://xarthd.com/x-art-model-jamie-those-eyes/" >Jamie</a> : <a class="comment_content" href="http://www.codigg.com/2010/11/httpsqs-binary-data-support/#comment-207131" title="View the entire comment by Jamie" >You feature a good blog here! will you like to mak...</a></li>
</ul>]]></description>
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		<slash:comments>26</slash:comments>
		</item>
		<item>
		<title>Linux下无法使用google earth 5.2的问题</title>
		<link>http://www.codigg.com/2010/07/linux-google-earth-crash-ubuntu/</link>
		<comments>http://www.codigg.com/2010/07/linux-google-earth-crash-ubuntu/#comments</comments>
		<pubDate>Tue, 27 Jul 2010 08:06:41 +0000</pubDate>
		<dc:creator>Codigg</dc:creator>
				<category><![CDATA[Linux/Server]]></category>
		<category><![CDATA[google earth]]></category>

		<guid isPermaLink="false">http://www.codigg.com/?p=792</guid>
		<description><![CDATA[google了一下，很多人遇到这个问题。

解决方法



?View Code BASHcd /opt/google-earth

wget http://librarian.launchpad.net/7037027/libGL.so.1 -O libGL.so.1

<span class="readmore"><a href="http://www.codigg.com/2010/07/linux-google-earth-crash-ubuntu/" title="Linux下无法使用google earth 5.2的问题">阅读全文——共125字</a></span><h3>相关文章</h3><ul><li><a href="http://www.codigg.com/2010/03/linux-101-hacks-chinese-edition-tips/" title="《Linux 101 Hacks》中文版(Linux常用101个小技巧) 2010.03.29">《Linux 101 Hacks》中文版(Linux常用101个小技巧)</a>(12)</li>
<li><a href="http://www.codigg.com/2010/03/linux-baby-rocker-bash-shell/" title="几行代码搞定哄小孩问题(转载) 2010.03.22">几行代码搞定哄小孩问题(转载)</a>(4)</li>
</ul><h3>最近评论</h3><ul><li><a class="commentor" href="http://www.innovativerenderings.com" >marketing condos</a> : <a class="comment_content" href="http://www.codigg.com/2010/07/linux-google-earth-crash-ubuntu/#comment-214200" title="View the entire comment by marketing condos" >I've been in the same situation before. Its not an...</a></li>
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</ul>]]></description>
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		<slash:comments>85</slash:comments>
		</item>
		<item>
		<title>Alexa排名实时查询接口</title>
		<link>http://www.codigg.com/2010/04/alexa-rank-query-api/</link>
		<comments>http://www.codigg.com/2010/04/alexa-rank-query-api/#comments</comments>
		<pubDate>Tue, 13 Apr 2010 11:08:18 +0000</pubDate>
		<dc:creator>Codigg</dc:creator>
				<category><![CDATA[Linux/Server]]></category>
		<category><![CDATA[Alexa]]></category>
		<category><![CDATA[api]]></category>
		<category><![CDATA[rank]]></category>

		<guid isPermaLink="false">http://www.codigg.com/?p=719</guid>
		<description><![CDATA[测试效果如下：









<span class="readmore"><a href="http://www.codigg.com/2010/04/alexa-rank-query-api/" title="Alexa排名实时查询接口">阅读全文——共515字</a></span><h3>相关文章</h3><ul><li><a href="http://www.codigg.com/2009/08/traffic-ip-rank-tools/" title="流量、IP、Alexa排名互刷工具 2009.08.10">流量、IP、Alexa排名互刷工具</a>(16)</li>
</ul><h3>最近评论</h3><ul><li><a class="commentor" href="http://www.ajdhe.com" >Karri Goodwyn</a> : <a class="comment_content" href="http://www.codigg.com/2010/04/alexa-rank-query-api/#comment-214008" title="View the entire comment by Karri Goodwyn" >Hi there,I enjoy reading through your article post...</a></li>
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</ul>]]></description>
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		<slash:comments>20</slash:comments>
		</item>
		<item>
		<title>lighttpd不支持Expect: 100-continue的解决办法</title>
		<link>http://www.codigg.com/2010/04/lighttpd-expect-100-417-continue/</link>
		<comments>http://www.codigg.com/2010/04/lighttpd-expect-100-417-continue/#comments</comments>
		<pubDate>Tue, 13 Apr 2010 05:46:32 +0000</pubDate>
		<dc:creator>Codigg</dc:creator>
				<category><![CDATA[Linux/Server]]></category>
		<category><![CDATA[.net]]></category>
		<category><![CDATA[curl]]></category>
		<category><![CDATA[JAVA]]></category>
		<category><![CDATA[lighttpd]]></category>
		<category><![CDATA[PHP]]></category>

		<guid isPermaLink="false">http://www.codigg.com/?p=710</guid>
		<description><![CDATA[由于lighttpd1.4.21之前的版本不支持Expect: 100-continue，所以有可能访问出现“HTTP/1.1 417 Expectation Failed”等错误提示，搜集整理了很多解决方法，如下：

1. 升级到 lighttpd 1.5.x，那应该没有这个问题了

2. （推荐）升级到 lighttpd 1.4.21 或以上版本（即最新的realease版本），在配置文件中加上一句



?View Code BASHserver.reject-expect-100-with-417=&#34;disabled&#34;

<span class="readmore"><a href="http://www.codigg.com/2010/04/lighttpd-expect-100-417-continue/" title="lighttpd不支持Expect: 100-continue的解决办法">阅读全文——共564字</a></span><h3>相关文章</h3><ul><li><a href="http://www.codigg.com/2010/01/php-aes-java-encrypt-decrypt/" title="php版的AES算法（可与java兼容） 2010.01.21">php版的AES算法（可与java兼容）</a>(115)</li>
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</ul><h3>最近评论</h3><ul><li><a class="commentor" href="http://darmowedzwonienie.pl" >VoipDiscount</a> : <a class="comment_content" href="http://www.codigg.com/2010/04/lighttpd-expect-100-417-continue/#comment-213019" title="View the entire comment by VoipDiscount" >I'm really enjoying the theme/design of your blog....</a></li>
<li><a class="commentor" href="http://cheapcontent.info/" >short article writing tips</a> : <a class="comment_content" href="http://www.codigg.com/2010/04/lighttpd-expect-100-417-continue/#comment-212883" title="View the entire comment by short article writing tips" >I wish to express some appreciation to you just fo...</a></li>
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<li><a class="commentor" href="http://www.youtube.com/watch?v=FqdL-xuoLOI" >Jonathon Joern</a> : <a class="comment_content" href="http://www.codigg.com/2010/04/lighttpd-expect-100-417-continue/#comment-211330" title="View the entire comment by Jonathon Joern" >I’d need to check with you here. Which just isn’t ...</a></li>
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</ul>]]></description>
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		<slash:comments>67</slash:comments>
		</item>
		<item>
		<title>SuSE FTP Client 连接服务器无法list的问题</title>
		<link>http://www.codigg.com/2010/04/suse-ftp-client-list-ls-failed/</link>
		<comments>http://www.codigg.com/2010/04/suse-ftp-client-list-ls-failed/#comments</comments>
		<pubDate>Sun, 11 Apr 2010 06:20:43 +0000</pubDate>
		<dc:creator>Codigg</dc:creator>
				<category><![CDATA[Linux/Server]]></category>
		<category><![CDATA[epsv]]></category>
		<category><![CDATA[ftp]]></category>
		<category><![CDATA[suse]]></category>

		<guid isPermaLink="false">http://www.codigg.com/?p=708</guid>
		<description><![CDATA[服务器修改了组网结构，同事反馈FTP命令无法使用了，现象如下：

CODIGG-SUSE # ftp user@www.codigg.com

 Connected to www.codigg.com.

220 Welcome

331 Welcome &#8216;user&#8217;, enter password to login.

<span class="readmore"><a href="http://www.codigg.com/2010/04/suse-ftp-client-list-ls-failed/" title="SuSE FTP Client 连接服务器无法list的问题">阅读全文——共947字</a></span><h3>相关文章</h3><ul><li><a href="http://www.codigg.com/2010/04/ftp-curl-backup-shell/" title="下载远程ftp文件备份到本地的脚本 2010.04.7">下载远程ftp文件备份到本地的脚本</a>(22)</li>
<li><a href="http://www.codigg.com/2009/12/shell-curl-ftp-upload-download-delete/" title="shell命令：使用curl操作ftp（上传、下载、删除等） 2009.12.3">shell命令：使用curl操作ftp（上传、下载、删除等）</a>(114)</li>
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		<slash:comments>20</slash:comments>
		</item>
		<item>
		<title>网络监听工具tcpdump常用命令</title>
		<link>http://www.codigg.com/2010/04/tcpdump-command-sniff/</link>
		<comments>http://www.codigg.com/2010/04/tcpdump-command-sniff/#comments</comments>
		<pubDate>Thu, 08 Apr 2010 12:42:42 +0000</pubDate>
		<dc:creator>Codigg</dc:creator>
				<category><![CDATA[Linux/Server]]></category>
		<category><![CDATA[tcpdump]]></category>
		<category><![CDATA[监听]]></category>

		<guid isPermaLink="false">http://www.codigg.com/?p=668</guid>
		<description><![CDATA[先解释一下tcpdump的结果格式（参考《鸟哥的Linux私房菜》），下面的数据直接用tcpdump命令截取：

04:00:59.483389 IP 192.168.1.1.ssh &#62; 192.168.1.2.netuitive: P 46808:46956(148) ack 365 win 12864



04:00:59.483389 ： 通讯发生的时间

IP ： 此通讯所采用的协议

<span class="readmore"><a href="http://www.codigg.com/2010/04/tcpdump-command-sniff/" title="网络监听工具tcpdump常用命令">阅读全文——共834字</a></span><h3>相关文章</h3><ul><li>0</li></ul><h3>最近评论</h3><ul><li><a class="commentor" href="http://epotatoleeksoup.blogspot.com/" >Potato And Leek Soup</a> : <a class="comment_content" href="http://www.codigg.com/2010/04/tcpdump-command-sniff/#comment-214255" title="View the entire comment by Potato And Leek Soup" >Hey There. I found your blog using msn. This is a ...</a></li>
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</ul>]]></description>
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		<slash:comments>75</slash:comments>
		</item>
		<item>
		<title>下载远程ftp文件备份到本地的脚本</title>
		<link>http://www.codigg.com/2010/04/ftp-curl-backup-shell/</link>
		<comments>http://www.codigg.com/2010/04/ftp-curl-backup-shell/#comments</comments>
		<pubDate>Wed, 07 Apr 2010 04:13:14 +0000</pubDate>
		<dc:creator>Codigg</dc:creator>
				<category><![CDATA[Linux/Server]]></category>
		<category><![CDATA[backup]]></category>
		<category><![CDATA[curl]]></category>
		<category><![CDATA[ftp]]></category>
		<category><![CDATA[shell]]></category>

		<guid isPermaLink="false">http://www.codigg.com/?p=664</guid>
		<description><![CDATA[同事让我帮忙写的脚本。

FTP上每天有更新文件，名字是用日期命名（如日志等），但ftp空间有限，因此要求每天将前一天的文件下载到本地，然后删除ftp上10天前的文件。

用之前的一篇文章加以拼装就能实现：使用curl操作ftp（上传、下载、删除等）

http://www.codigg.com/2009/12/shell-curl-ftp-upload-download-delete/

最后的脚本如下：

<span class="readmore"><a href="http://www.codigg.com/2010/04/ftp-curl-backup-shell/" title="下载远程ftp文件备份到本地的脚本">阅读全文——共915字</a></span><h3>相关文章</h3><ul><li><a href="http://www.codigg.com/2009/12/shell-curl-ftp-upload-download-delete/" title="shell命令：使用curl操作ftp（上传、下载、删除等） 2009.12.3">shell命令：使用curl操作ftp（上传、下载、删除等）</a>(114)</li>
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<li><a href="http://www.codigg.com/2010/04/suse-ftp-client-list-ls-failed/" title="SuSE FTP Client 连接服务器无法list的问题 2010.04.11">SuSE FTP Client 连接服务器无法list的问题</a>(20)</li>
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		<slash:comments>22</slash:comments>
		</item>
		<item>
		<title>《Linux 101 Hacks》中文版(Linux常用101个小技巧)</title>
		<link>http://www.codigg.com/2010/03/linux-101-hacks-chinese-edition-tips/</link>
		<comments>http://www.codigg.com/2010/03/linux-101-hacks-chinese-edition-tips/#comments</comments>
		<pubDate>Mon, 29 Mar 2010 13:17:25 +0000</pubDate>
		<dc:creator>Codigg</dc:creator>
				<category><![CDATA[Linux/Server]]></category>
		<category><![CDATA[hacks]]></category>
		<category><![CDATA[tips]]></category>
		<category><![CDATA[技巧]]></category>

		<guid isPermaLink="false">http://www.codigg.com/?p=609</guid>
		<description><![CDATA[<a href="http://www.codigg.com/2010/03/linux-101-hacks-chinese-edition-tips/"><img align="left" hspace="5" width="150" height="150" src="http://www.codigg.com/wp-content/uploads/2010/03/linux-101-hacks-150x150.jpg" class="alignleft wp-post-image tfe" alt="" title="linux-101-hacks" /></a>本书中共介绍了101条技巧，以此来帮助你打下坚实的Linux系统管理的基础。每条技巧中都有与之对应的示例来帮助你理解。

原网站下载网页： 《Linux 101 Hacks》中文版

直接点的下载地址：这里也可以直接下载

为了方便各位在下载之前评估自己是否还需要看此书，给出它的目录结构吧：

第一章：强大的CD命令技巧

<span class="readmore"><a href="http://www.codigg.com/2010/03/linux-101-hacks-chinese-edition-tips/" title="《Linux 101 Hacks》中文版(Linux常用101个小技巧)">阅读全文——共2723字</a></span><h3>相关文章</h3><ul><li><a href="http://www.codigg.com/2010/07/linux-google-earth-crash-ubuntu/" title="Linux下无法使用google earth 5.2的问题 2010.07.27">Linux下无法使用google earth 5.2的问题</a>(85)</li>
<li><a href="http://www.codigg.com/2010/03/linux-baby-rocker-bash-shell/" title="几行代码搞定哄小孩问题(转载) 2010.03.22">几行代码搞定哄小孩问题(转载)</a>(4)</li>
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		</item>
		<item>
		<title>安装php rrdtool</title>
		<link>http://www.codigg.com/2010/03/php-rrdtool-install/</link>
		<comments>http://www.codigg.com/2010/03/php-rrdtool-install/#comments</comments>
		<pubDate>Wed, 24 Mar 2010 14:26:18 +0000</pubDate>
		<dc:creator>Codigg</dc:creator>
				<category><![CDATA[Linux/Server]]></category>
		<category><![CDATA[PHP]]></category>
		<category><![CDATA[rrdtool]]></category>

		<guid isPermaLink="false">http://www.codigg.com/?p=583</guid>
		<description><![CDATA[RRDTool 是由Tobias Oetiker 开发的自由软件，它使用RRD （ Round Robin Database ）作为存储格式， Round robin 是一种处理定量数据以及当前元素指针的技术。rrdtool主要用来跟踪对象变化情况，用来生成这些变化的走势。如服务器状态、股票、天气温度等。

简单写一下php_rrdtool的安装方法



?View Code BASH# 下载

wget http://oss.oetiker.ch/rrdtool/pub/contrib/php_rrdtool.tar.gz

<span class="readmore"><a href="http://www.codigg.com/2010/03/php-rrdtool-install/" title="安装php rrdtool">阅读全文——共811字</a></span><h3>相关文章</h3><ul><li><a href="http://www.codigg.com/2011/07/php-uniqid-performance/" title="PHP中uniqid的性能 2011.07.8">PHP中uniqid的性能</a>(17)</li>
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<li><a href="http://www.codigg.com/2010/08/php-request-cookie/" title="搞清楚php中$_REQUEST变量的问题，备忘一下 2010.08.16">搞清楚php中$_REQUEST变量的问题，备忘一下</a>(61)</li>
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