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	<title>奋斗足迹&#124;崔玉松 &#187; Operating System</title>
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		<title>Linode VPS 主机评分</title>
		<link>http://fendou.org/2011/01/28/linode-vps-bench/</link>
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		<pubDate>Fri, 28 Jan 2011 03:36:23 +0000</pubDate>
		<dc:creator>崔玉松</dc:creator>
				<category><![CDATA[Operating System]]></category>
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			<content:encoded><![CDATA[<p>配置是最低入门的512plan</p>
<p>4 CPUs in system; running 1 parallel copy of tests</p>
<p>Dhrystone 2 using register variables       12912633.7 lps   (10.0 s, 7 samples)<br />
Double-Precision Whetstone                     2151.7 MWIPS (10.0 s, 7 samples)<br />
Execl Throughput                                892.6 lps   (29.9 s, 2 samples)<br />
File Copy 1024 bufsize 2000 maxblocks        174974.5 KBps  (30.0 s, 2 samples)<br />
File Copy 256 bufsize 500 maxblocks           46414.1 KBps  (30.0 s, 2 samples)<br />
File Copy 4096 bufsize 8000 maxblocks        521010.8 KBps  (30.0 s, 2 samples)<br />
Pipe Throughput                              249578.0 lps   (10.0 s, 7 samples)<br />
Pipe-based Context Switching                  44742.9 lps   (10.0 s, 7 samples)<br />
Process Creation                               1479.8 lps   (30.0 s, 2 samples)<br />
Shell Scripts (1 concurrent)                   2334.2 lpm   (60.0 s, 2 samples)<br />
Shell Scripts (8 concurrent)                    673.1 lpm   (60.1 s, 2 samples)<br />
System Call Overhead                         248224.2 lps   (10.0 s, 7 samples)</p>
<p>System Benchmarks Index Values               BASELINE       RESULT    INDEX<br />
Dhrystone 2 using register variables         116700.0   12912633.7   1106.5<br />
Double-Precision Whetstone                       55.0       2151.7    391.2<br />
Execl Throughput                                 43.0        892.6    207.6<br />
File Copy 1024 bufsize 2000 maxblocks          3960.0     174974.5    441.9<br />
File Copy 256 bufsize 500 maxblocks            1655.0      46414.1    280.4<br />
File Copy 4096 bufsize 8000 maxblocks          5800.0     521010.8    898.3<br />
Pipe Throughput                               12440.0     249578.0    200.6<br />
Pipe-based Context Switching                   4000.0      44742.9    111.9<br />
Process Creation                                126.0       1479.8    117.4<br />
Shell Scripts (1 concurrent)                     42.4       2334.2    550.5<br />
Shell Scripts (8 concurrent)                      6.0        673.1   1121.8<br />
System Call Overhead                          15000.0     248224.2    165.5<br />
                                                                   ========<br />
System Benchmarks Index Score                                         343.5</p>
<p>&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<br />
4 CPUs in system; running 4 parallel copies of tests</p>
<p>Dhrystone 2 using register variables       47311139.0 lps   (10.0 s, 7 samples)<br />
Double-Precision Whetstone                     8496.2 MWIPS (9.8 s, 7 samples)<br />
Execl Throughput                               2652.3 lps   (30.0 s, 2 samples)<br />
File Copy 1024 bufsize 2000 maxblocks        224996.5 KBps  (30.0 s, 2 samples)<br />
File Copy 256 bufsize 500 maxblocks           60198.2 KBps  (30.0 s, 2 samples)<br />
File Copy 4096 bufsize 8000 maxblocks        747652.1 KBps  (30.0 s, 2 samples)<br />
Pipe Throughput                              948490.2 lps   (10.0 s, 7 samples)<br />
Pipe-based Context Switching                 170475.4 lps   (10.0 s, 7 samples)<br />
Process Creation                               4747.2 lps   (30.0 s, 2 samples)<br />
Shell Scripts (1 concurrent)                   5697.3 lpm   (60.0 s, 2 samples)<br />
Shell Scripts (8 concurrent)                    746.2 lpm   (60.1 s, 2 samples)<br />
System Call Overhead                         873882.0 lps   (10.0 s, 7 samples)</p>
<p>System Benchmarks Index Values               BASELINE       RESULT    INDEX<br />
Dhrystone 2 using register variables         116700.0   47311139.0   4054.1<br />
Double-Precision Whetstone                       55.0       8496.2   1544.8<br />
Execl Throughput                                 43.0       2652.3    616.8<br />
File Copy 1024 bufsize 2000 maxblocks          3960.0     224996.5    568.2<br />
File Copy 256 bufsize 500 maxblocks            1655.0      60198.2    363.7<br />
File Copy 4096 bufsize 8000 maxblocks          5800.0     747652.1   1289.1<br />
Pipe Throughput                               12440.0     948490.2    762.5<br />
Pipe-based Context Switching                   4000.0     170475.4    426.2<br />
Process Creation                                126.0       4747.2    376.8<br />
Shell Scripts (1 concurrent)                     42.4       5697.3   1343.7<br />
Shell Scripts (8 concurrent)                      6.0        746.2   1243.6<br />
System Call Overhead                          15000.0     873882.0    582.6<br />
                                                                   ========<br />
System Benchmarks Index Score                                         839.6</p>
<p>单核测试性能也有300多分，这个表现相当出色，四核的测试能够超过839分也出乎意料，由于linode的高可用性和对亚洲的访问速度非常的快，虽然最低也要19美元，也算是物有所值</p>
<p>附上测试脚本：<a href="http://code.google.com/p/byte-unixbench/">Unix bench</a></p>
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		<comments>http://fendou.org/2011/01/28/burstnet-vps-bench/#comments</comments>
		<pubDate>Fri, 28 Jan 2011 02:45:33 +0000</pubDate>
		<dc:creator>崔玉松</dc:creator>
				<category><![CDATA[Operating System]]></category>
		<category><![CDATA[常识]]></category>
		<category><![CDATA[应用架构]]></category>

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			<content:encoded><![CDATA[<p>前些日子搞特惠，买了一个最低配置的，512M内存</p>
<blockquote><p>VPS PACKAGE #1<br />
VPS Software: vePortal™ / OpenVZ™<br />
CPU: 1000MHZ GUARANTEED<br />
Memory: 512MB GUARANTEED<br />
Disk Space: 20GB (RAID BASED CONFIG)<br />
Bandwidth: 1000GB/MONTH<br />
IP Addresses: 2 (IPv4) + IPv6<br />
Management: BASIC MANAGED<br />
DDOS Protection: CISCO™ GUARD<br />
FREE SETUP	$5.95/MONTH	</p></blockquote>
<p>================================================================<br />
   BYTE UNIX Benchmarks (Version 5.1.3)</p>
<p>   System: 200689.www.foxapp.com: GNU/Linux<br />
   OS: GNU/Linux &#8212; 2.6.18-194.26.1.el5.028stab070.14 &#8212; #1 SMP Thu Nov 18 16:34                                                                              :01 MSK 2010<br />
   Machine: x86_64 (x86_64)<br />
   Language: en_US.utf8 (charmap=”UTF-8&#8243;, collate=”UTF-8&#8243;)<br />
   CPU 0: Intel(R) Xeon(R) CPU E5620 @ 2.40GHz (4788.1 bogomips)<br />
          Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT,                                                                               SYSCALL/SYSRET, Intel virtualization<br />
   05:07:23 up 6 min,  1 user,  load average: 0.08, 0.02, 0.01; runlevel 3</p>
<p>&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<br />
Benchmark Run: Fri Jan 28 2011 05:07:23 &#8211; 05:37:17<br />
1 CPU in system; running 1 parallel copy of tests</p>
<p>Dhrystone 2 using register variables       12759700.9 lps   (10.0 s, 7 samples)<br />
Double-Precision Whetstone                     2797.2 MWIPS (10.0 s, 7 samples)<br />
Execl Throughput                               3383.2 lps   (29.6 s, 2 samples)<br />
File Copy 1024 bufsize 2000 maxblocks        506737.3 KBps  (30.0 s, 2 samples)<br />
File Copy 256 bufsize 500 maxblocks          142917.2 KBps  (30.0 s, 2 samples)<br />
File Copy 4096 bufsize 8000 maxblocks       1087584.1 KBps  (30.0 s, 2 samples)<br />
Pipe Throughput                              948149.4 lps   (10.0 s, 7 samples)<br />
Pipe-based Context Switching                 277958.2 lps   (10.0 s, 7 samples)<br />
Process Creation                              10813.4 lps   (30.0 s, 2 samples)<br />
Shell Scripts (1 concurrent)                   4151.6 lpm   (60.0 s, 2 samples)<br />
Shell Scripts (8 concurrent)                    583.2 lpm   (60.1 s, 2 samples)<br />
System Call Overhead                         862516.8 lps   (10.0 s, 7 samples)</p>
<p>System Benchmarks Index Values               BASELINE       RESULT    INDEX<br />
Dhrystone 2 using register variables         116700.0   12759700.9   1093.4<br />
Double-Precision Whetstone                       55.0       2797.2    508.6<br />
Execl Throughput                                 43.0       3383.2    786.8<br />
File Copy 1024 bufsize 2000 maxblocks          3960.0     506737.3   1279.6<br />
File Copy 256 bufsize 500 maxblocks            1655.0     142917.2    863.5<br />
File Copy 4096 bufsize 8000 maxblocks          5800.0    1087584.1   1875.1<br />
Pipe Throughput                               12440.0     948149.4    762.2<br />
Pipe-based Context Switching                   4000.0     277958.2    694.9<br />
Process Creation                                126.0      10813.4    858.2<br />
Shell Scripts (1 concurrent)                     42.4       4151.6    979.2<br />
Shell Scripts (8 concurrent)                      6.0        583.2    972.0<br />
System Call Overhead                          15000.0     862516.8    575.0<br />
                                                                   ========<br />
System Benchmarks Index Score                                         883.3</p>
<p>883.3的评分相当彪悍，相对于其价格来说，相当不错了，Burst有个很大的Bug是他的统计流量的系统，那玩意一点也不靠谱，我发过ticket给他们，回复说是已知的Bug，目前不限制流量，也就是显示多少无所谓了。</p>
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			<wfw:commentRss>http://fendou.org/2011/01/28/burstnet-vps-bench/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>vim xxx编辑完了后发现没有写权限</title>
		<link>http://fendou.org/2011/01/04/vim-no-write-permission/</link>
		<comments>http://fendou.org/2011/01/04/vim-no-write-permission/#comments</comments>
		<pubDate>Tue, 04 Jan 2011 01:57:31 +0000</pubDate>
		<dc:creator>崔玉松</dc:creator>
				<category><![CDATA[Operating System]]></category>
		<category><![CDATA[linux]]></category>

		<guid isPermaLink="false">http://fendou.org/?p=771</guid>
		<description><![CDATA[很多时候我们在vim一个文件然后保存的时候却发现没有写权限，这个很纠结，尤其是在编辑了一个文件的好几处，而且不在一屏的时候,其实有个变通的方法，原理稍后介绍，现在你可以在保存的时候使用下面的命令: :w !sudo tee % 原理是w ! 可以把当前尚未保存的内容输出到标准输入中，然后用tee 把标准输入的东西写入到%文件中。 而在vim中，%代表当前正在编辑的文件。<table class="wumii-related-items" cellspacing="0" cellpadding="3" border="0"  style="clear: both;">
    
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			<content:encoded><![CDATA[<p>很多时候我们在vim一个文件然后保存的时候却发现没有写权限，这个很纠结，尤其是在编辑了一个文件的好几处，而且不在一屏的时候,其实有个变通的方法，原理稍后介绍，现在你可以在保存的时候使用下面的命令:</p>

<div class="wp_syntax"><div class="code"><pre class="shell" style="font-family:monospace;">:w !sudo tee %</pre></div></div>

<p>原理是w ! 可以把当前尚未保存的内容输出到标准输入中，然后用tee 把标准输入的东西写入到%文件中。 而在vim中，%代表当前正在编辑的文件。</p>
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</table>]]></content:encoded>
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		<item>
		<title>error while loading shared libraries: libgearman.so.1</title>
		<link>http://fendou.org/2010/11/22/gearman-error-while-loading-shared-libraries-libgearman-so-1/</link>
		<comments>http://fendou.org/2010/11/22/gearman-error-while-loading-shared-libraries-libgearman-so-1/#comments</comments>
		<pubDate>Mon, 22 Nov 2010 06:24:24 +0000</pubDate>
		<dc:creator>崔玉松</dc:creator>
				<category><![CDATA[Operating System]]></category>
		<category><![CDATA[linux]]></category>

		<guid isPermaLink="false">http://fendou.org/?p=757</guid>
		<description><![CDATA[当运行 /usr/local/sbin/gearmand -d 时 出现 error while loading shared libraries: libgearman.so.1 运行一下 /sbin/ldconfig -v ，然后再去运行gearman就可以了 ldconfig命令的用途,主要是在默认搜寻目录(/lib和/usr/lib)以及动态库配置文件/etc/ld.so.conf内所列的目录下,搜索出可共享的动态链接库(格式如前介绍,lib*.so*),进而创建出动态装入程序(ld.so)所需的连接和缓存文件.缓存文件默认为/etc/ld.so.cache,此文件保存已排好序的动态链接库名字列表. ldconfig通常在系统启动时运行,而当用户安装了一个新的动态链接库时,就需要手工运行这个命令.<table class="wumii-related-items" cellspacing="0" cellpadding="2" border="0" width="100%" style="clear: both;">
    
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</table>]]></description>
			<content:encoded><![CDATA[<p>当运行 /usr/local/sbin/gearmand -d 时<br />
出现</p>
<blockquote><p>error while loading shared libraries: libgearman.so.1</p></blockquote>
<p>运行一下 /sbin/ldconfig -v ，然后再去运行gearman就可以了</p>
<p>ldconfig命令的用途,主要是在默认搜寻目录(/lib和/usr/lib)以及动态库配置文件/etc/ld.so.conf内所列的目录下,搜索出可共享的动态链接库(格式如前介绍,lib*.so*),进而创建出动态装入程序(ld.so)所需的连接和缓存文件.缓存文件默认为/etc/ld.so.cache,此文件保存已排好序的动态链接库名字列表.</p>
<p>ldconfig通常在系统启动时运行,而当用户安装了一个新的动态链接库时,就需要手工运行这个命令.</p>
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</table>]]></content:encoded>
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		</item>
		<item>
		<title>实时统计搜索引擎抓取</title>
		<link>http://fendou.org/2010/10/23/cout-search-spider/</link>
		<comments>http://fendou.org/2010/10/23/cout-search-spider/#comments</comments>
		<pubDate>Fri, 22 Oct 2010 16:02:06 +0000</pubDate>
		<dc:creator>崔玉松</dc:creator>
				<category><![CDATA[Operating System]]></category>
		<category><![CDATA[linux]]></category>

		<guid isPermaLink="false">http://fendou.org/?p=742</guid>
		<description><![CDATA[先来看一张图： 这是一个简单的脚本，利用Tcpdump将当前网络包加以分析，把带有rebot标识的agent输出到终端，代码如下： tcpdump -i eth0 -l -s 0 -w &#8211; dst port 80 &#124; strings &#124; grep -i user-agent &#124; egrep -i &#8216;bot&#124;crawler&#124;slurp&#124;spider&#8217; 关于Tcpdump的解释看维基百科 eth0是网卡接口，有可能你的不是这个名字，请运行ifconfig命令确认自己的网卡接口名称 这个脚本只是根据User Agent 来识别蜘蛛，如果有不轨者修改了自己的User Agent在访问，也会显示在这里 本脚本的意义不在于显示在终端上好玩，而是可以通过运行后台进程，然后将信息记到log中，再用一些简单的脚本就能大致统计出，各个搜索引擎的抓取次数、频率等<table class="wumii-related-items" cellspacing="0" cellpadding="3" border="0"  style="clear: both;">
    
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			<content:encoded><![CDATA[<p>先来看一张图：<br />
<img src="http://pic.yupoo.com/cuimuxi_v/Azb04u3h/63CMl.png" alt="tcpdum" /><br />
这是一个简单的脚本，利用Tcpdump将当前网络包加以分析，把带有rebot标识的agent输出到终端，代码如下：</p>
<blockquote><p>tcpdump -i eth0 -l -s 0 -w &#8211; dst port 80 | strings | grep -i user-agent | egrep -i &#8216;bot|crawler|slurp|spider&#8217;</p></blockquote>
<li>关于Tcpdump的解释看<a href="http://en.wikipedia.org/wiki/Tcpdump">维基百科</a></li>
<li>eth0是网卡接口，有可能你的不是这个名字，请运行ifconfig命令确认自己的网卡接口名称</li>
<li>这个脚本只是根据User Agent 来识别蜘蛛，如果有不轨者修改了自己的User Agent在访问，也会显示在这里</li>
<li>本脚本的意义不在于显示在终端上好玩，而是可以通过运行后台进程，然后将信息记到log中，再用一些简单的脚本就能大致统计出，各个搜索引擎的抓取次数、频率等</li>
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		<title>rsync ssh 无密码增量同步设置</title>
		<link>http://fendou.org/2010/10/08/rsync-ssh/</link>
		<comments>http://fendou.org/2010/10/08/rsync-ssh/#comments</comments>
		<pubDate>Fri, 08 Oct 2010 02:41:30 +0000</pubDate>
		<dc:creator>崔玉松</dc:creator>
				<category><![CDATA[Operating System]]></category>
		<category><![CDATA[linux]]></category>

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			<content:encoded><![CDATA[<p>A:192.168.0.1 （目标/需要同步服务器）<br />
B:192.168.0.2（备份服务器）</p>
<p>A:<br />
yum -y install xinetd<br />
vi /etc/xinetd.d/rsync<br />
将“disable = no”<br />
chkconfig xinetd on<br />
service xinetd start<br />
vi /etc/rsyncd.conf<br />
[site] #name<br />
path = /var/www/html #copied directory<br />
hosts allow = 192.168.0.2<br />
hosts deny = *<br />
list = true<br />
uid = root<br />
gid = root</p>
<p>在B上的命令:<br />
# ssh-keygen -t rsa (连续三次回车,即在本地生成了公钥和私钥,不设置密码)<br />
# ssh root@192.168.0.1 “mkdir .ssh;chmod 0700 .ssh” (需要输入密码)<br />
# scp ~/.ssh/id_rsa.pub root@192.168.0.1:.ssh/id_rsa.pub (需要输入密码)</p>
<p>在A上的命令:<br />
# touch /root/.ssh/authorized_keys2 (如果已经存在这个文件, 跳过这条)<br />
# cat /root/.ssh/id_rsa.pub  >> /root/.ssh/authorized_keys2 (将id_rsa.pub的内容追加到 authorized_keys2 中)</p>
<p>回到B机器:<br />
# ssh root@192.168.0.1 (不需要密码, 登录成功)</p>
<p>#vi /etc/rsync_exclude.lst #这里写你排除的目录或文件<br />
no.txt<br />
nono.txt</p>
<p>#rsync -avz &#8211;delete &#8211;rsh &#8211;exclude-from=/etc/rsync_exclude.lst 192.168.0.1::site /home/backup</p>
<p>#crontab -e</p>
<p>00 02 * * * rsync -avz &#8211;delete &#8211;rsh&#8211;exclude-from=/etc/rsync_exclude.lst 192.168.0.1::site /home/backup</p>
]]></content:encoded>
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		<slash:comments>3</slash:comments>
		</item>
		<item>
		<title>Linux网络管理中的几个小工具</title>
		<link>http://fendou.org/2010/04/11/linux-network-manage-tools/</link>
		<comments>http://fendou.org/2010/04/11/linux-network-manage-tools/#comments</comments>
		<pubDate>Sun, 11 Apr 2010 03:35:50 +0000</pubDate>
		<dc:creator>崔玉松</dc:creator>
				<category><![CDATA[Operating System]]></category>
		<category><![CDATA[linux]]></category>

		<guid isPermaLink="false">http://fendou.org/?p=676</guid>
		<description><![CDATA[1、ifconfig 提供基本的配置信息，在侦测错误IP地址、不正确的网络掩码和不适当的广播地址时，都很有用。 2、arp 提供Ethernet与IP地址的转换信息，它可以用不过来侦测网络上的IP地址配置错误的系统,Arp是Unix系统的一部分 3、netstat 提供各式各样的网络信息，通常用来显示个网络接口，socket及路由表等统计信息。 4、ping 做技术的地球人都知道的一个玩意，主要作用是指出IP包是否能够到达某台主机，同事也会显示分组包漏失与传送时间等统计信息 5、nslookup 提供DNS域名服务的有关信息 6、dig 也提供域名服务相关的信息，和nslookup类似的玩意 7、ripquery 提供系统发送或者接受RIP更新分组包的内容。riquery是gated软件一部分，但你并非一定要执行gated，它可以在所有执行RIP的系统上操作。 8、tracerute 告诉你到远程系统分组包使用哪一条路由，每一站的记录都会显示（理论上如此，实际上很多特殊应用的路由会关闭自己反馈信息，tracerute将跟踪不到，比如著名的万里长城） 9、snoop 分析每一个网络上主机间彼此传送的分组包。soop是一种TCP/IP协议分析器，用来分析分组包内容包括其表头，这是分析协议问题时最有用的工具之一。 10、tcpdump 功能和snoop类似，比前者提供更多的功能，以巨多的参数和强大的功能而闻名]]></description>
			<content:encoded><![CDATA[<p>1、ifconfig<br />
提供基本的配置信息，在侦测错误IP地址、不正确的网络掩码和不适当的广播地址时，都很有用。</p>
<p>2、arp</p>
<p>提供Ethernet与IP地址的转换信息，它可以用不过来侦测网络上的IP地址配置错误的系统,Arp是Unix系统的一部分</p>
<p>3、netstat<br />
提供各式各样的网络信息，通常用来显示个网络接口，socket及路由表等统计信息。</p>
<p>4、ping<br />
做技术的地球人都知道的一个玩意，主要作用是指出IP包是否能够到达某台主机，同事也会显示分组包漏失与传送时间等统计信息</p>
<p>5、nslookup<br />
提供DNS域名服务的有关信息</p>
<p>6、dig<br />
也提供域名服务相关的信息，和nslookup类似的玩意</p>
<p>7、ripquery<br />
提供系统发送或者接受RIP更新分组包的内容。riquery是gated软件一部分，但你并非一定要执行gated，它可以在所有执行RIP的系统上操作。</p>
<p>8、tracerute<br />
告诉你到远程系统分组包使用哪一条路由，每一站的记录都会显示（理论上如此，实际上很多特殊应用的路由会关闭自己反馈信息，tracerute将跟踪不到，比如著名的万里长城）</p>
<p>9、snoop<br />
分析每一个网络上主机间彼此传送的分组包。soop是一种TCP/IP协议分析器，用来分析分组包内容包括其表头，这是分析协议问题时最有用的工具之一。</p>
<p>10、tcpdump<br />
功能和snoop类似，比前者提供更多的功能，以巨多的参数和强大的功能而闻名</p>
]]></content:encoded>
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		<title>varnish安装记录</title>
		<link>http://fendou.org/2010/01/07/varnish-install/</link>
		<comments>http://fendou.org/2010/01/07/varnish-install/#comments</comments>
		<pubDate>Thu, 07 Jan 2010 12:14:36 +0000</pubDate>
		<dc:creator>崔玉松</dc:creator>
				<category><![CDATA[Operating System]]></category>
		<category><![CDATA[linux]]></category>

		<guid isPermaLink="false">http://fendou.org/?p=638</guid>
		<description><![CDATA[varnish和squid相比最大的优势就是简单快速，简单是安装和配置都简单，快速是运行速度比squid更快，当然，快的前提是varnish比squid占用更多的内存，估计当年设计squid的时候内存还是很贵的东西，所以更多的侧重硬盘，使用内存多，当然还有一个很显而易见的弱点是机器冷启动时候恢复缓存的时间相比squid要长。 wget http://downloads.sourceforge.net/project/varnish/varnish/2.0.6/varnish-2.0.6.tar.gz?use_mirror=ncu tar zxvf varnish-2.0.6.tar.gz cd varnish-2.0.6 ./configure  &#8211;prefix=/srv/varnish make make install 启动命令： /srv/varnish/sbin/varnishd -a :8088 -b localhost:8080 由于我指定了安装目录，所以加上了路径,-a参数表示varnish的监听端口，正常情况下应该监听是80端口，也就是web服务端口，我测试机上被使用掉了，所以用了8088端口， -b 是表示后端（backend）的地址，如果backend在这里指定，那么只能指定一个后端，如果使用的配置文件可以指定多个backend，我的配置文件位置位于/srv/varnish/etc/varnish。 在web服务器的目录中创建一个index.html文件，然后通过varnish进行代理访问. 第一次访问结果如下： 第二次访问结果如下： 根据请求头，我们看到的确是通过vanish来代理访问后端的，第一次访问age 为0 ，第二次访问age为71，说明这个文件已经在varnish中缓存了，此时可以通过/srv/varnish/bin/varnishstat 来查看一些参数，其中Hitrate 一行应该为1，因为命中了一次。 varnish 配置文件还是很有搞头的一个东西，有点类似与Nginx的语法，虽然不是很像，比如对正则的支持，可以绑定和去除head、Cookie等等功能，有时间的话，翻译一下varnish的introduction]]></description>
			<content:encoded><![CDATA[<p>varnish和squid相比最大的优势就是简单快速，简单是安装和配置都简单，快速是运行速度比squid更快，当然，快的前提是varnish比squid占用更多的内存，估计当年设计squid的时候内存还是很贵的东西，所以更多的侧重硬盘，使用内存多，当然还有一个很显而易见的弱点是机器冷启动时候恢复缓存的时间相比squid要长。</p>
<blockquote><p>wget http://downloads.sourceforge.net/project/varnish/varnish/2.0.6/varnish-2.0.6.tar.gz?use_mirror=ncu</p>
<p>tar zxvf varnish-2.0.6.tar.gz<br />
cd varnish-2.0.6<br />
./configure  &#8211;prefix=/srv/varnish<br />
make<br />
make install</p></blockquote>
<p>启动命令：<br />
/srv/varnish/sbin/varnishd -a :8088 -b localhost:8080</p>
<p>由于我指定了安装目录，所以加上了路径,-a参数表示varnish的监听端口，正常情况下应该监听是80端口，也就是web服务端口，我测试机上被使用掉了，所以用了8088端口， -b 是表示后端（backend）的地址，如果backend在这里指定，那么只能指定一个后端，如果使用的配置文件可以指定多个backend，我的配置文件位置位于/srv/varnish/etc/varnish。</p>
<p>在web服务器的目录中创建一个index.html文件，然后通过varnish进行代理访问.</p>
<p>第一次访问结果如下：</p>
<p><a title="Flickr 上 cuimuxi 的 2" href="http://www.flickr.com/photos/muxi/4253856506/"><img src="http://farm3.static.flickr.com/2744/4253856506_b8a60a93c3_o.png" alt="2" width="518" height="195" /></a></p>
<p>第二次访问结果如下：<br />
<a title="Flickr 上 cuimuxi 的 3" href="http://www.flickr.com/photos/muxi/4253856516/"><img src="http://farm3.static.flickr.com/2725/4253856516_52af863052_o.png" alt="3" width="516" height="200" /></a></p>
<p>根据请求头，我们看到的确是通过vanish来代理访问后端的，第一次访问age 为0 ，第二次访问age为71，说明这个文件已经在varnish中缓存了，此时可以通过/srv/varnish/bin/varnishstat 来查看一些参数，其中Hitrate 一行应该为1，因为命中了一次。<br />
varnish 配置文件还是很有搞头的一个东西，有点类似与Nginx的语法，虽然不是很像，比如对正则的支持，可以绑定和去除head、Cookie等等功能，有时间的话，翻译一下varnish的introduction</p>
]]></content:encoded>
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		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>Google AppEngine Launcher不能启动的解决方法</title>
		<link>http://fendou.org/2009/12/15/google-appengine-launcher-problem/</link>
		<comments>http://fendou.org/2009/12/15/google-appengine-launcher-problem/#comments</comments>
		<pubDate>Tue, 15 Dec 2009 03:06:47 +0000</pubDate>
		<dc:creator>崔玉松</dc:creator>
				<category><![CDATA[Operating System]]></category>
		<category><![CDATA[Google]]></category>
		<category><![CDATA[Python]]></category>

		<guid isPermaLink="false">http://fendou.org/?p=631</guid>
		<description><![CDATA[好久不玩 Google AppEngine，google 居然用WXPython整出一个带界面的GAE  server管理器,有点进步，虽然这个东西在Mac早就有了，至少现在不用在艳羡用Mac的同志了，当初我就觉得，难道google的工程师都用Mac？为啥不顾及大部分开发者呢？google真的太有个性了。down了一个到本地，结果死活加载不了项目，不停的报错，打开log一看，全是如下错误信息： Traceback (most recent call last): File “GoogleAppEngineLauncher.py”, line 42, in &#60;module&#62; File “wx\_core.pyc”, line 7913, in __init__ File “wx\_core.pyc”, line 7487, in _BootstrapApp File “launcher\app.pyc”, line 53, in OnInit File “launcher\app.pyc”, line 97, in _CreateModels &#8230; <a href="http://fendou.org/2009/12/15/google-appengine-launcher-problem/">继续阅读 <span class="meta-nav">&#8594;</span></a>]]></description>
			<content:encoded><![CDATA[<p>好久不玩 Google AppEngine，google 居然用WXPython整出一个带界面的GAE  server管理器,有点进步，虽然这个东西在Mac早就有了，至少现在不用在艳羡用Mac的同志了，当初我就觉得，难道google的工程师都用Mac？为啥不顾及大部分开发者呢？google真的太有个性了。down了一个到本地，结果死活加载不了项目，不停的报错，打开log一看，全是如下错误信息：</p>
<blockquote><p>Traceback (most recent call last):<br />
File “GoogleAppEngineLauncher.py”, line 42, in &lt;module&gt;<br />
File “wx\_core.pyc”, line 7913, in __init__<br />
File “wx\_core.pyc”, line 7487, in _BootstrapApp<br />
File “launcher\app.pyc”, line 53, in OnInit<br />
File “launcher\app.pyc”, line 97, in _CreateModels<br />
File “launcher\maintable.pyc”, line 35, in __init__<br />
File “launcher\maintable.pyc”, line 86, in _LoadProjects<br />
File “launcher\project.pyc”, line 63, in ProjectWithConfigParser<br />
File “launcher\project.pyc”, line 250, in _LoadFromConfigParser<br />
File “ConfigParser.pyc”, line 520, in get<br />
ConfigParser.NoOptionError: No option &#8216;name&#8217; in section: &#8217;1&#8242;</p></blockquote>
<p>看样子是加载不了project的配置文件或者是project的配置文件出错了，于是乎按照当初修改picasa的逻辑，到C:\Documents and Settings\自己的用户名\Google 文件夹下，<strong>删除所有的东西，重新启动</strong>，重新添加project，启动web server，结果还是启动不起来，还是在刚才的目录下，打开配置文件一看，就差不多明白了，我放在桌面上，理论上project的存放路径中应该有汉字包含其中，结果没有，于是把项目文件夹剪切到某盘（如D盘）的根目录下，再删除google文件夹下的所有文件，重新添加project，点击启动web server按钮，居然变绿了，启动成功，<strong>看来google还不支持中文路径名</strong>。 各位大侠要小心喽</p>
]]></content:encoded>
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		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>wordpress的nginx rewrite规则</title>
		<link>http://fendou.org/2009/10/29/wordpress-nginx-rewrite/</link>
		<comments>http://fendou.org/2009/10/29/wordpress-nginx-rewrite/#comments</comments>
		<pubDate>Thu, 29 Oct 2009 02:24:29 +0000</pubDate>
		<dc:creator>崔玉松</dc:creator>
				<category><![CDATA[Operating System]]></category>
		<category><![CDATA[Nginx]]></category>
		<category><![CDATA[Programming]]></category>

		<guid isPermaLink="false">http://fendou.org/?p=605</guid>
		<description><![CDATA[由于godaddy不稳定和龟速，终于把博客搬到自己的VPS上，并且换了一套皮 ，最近日子过得比较快，可能因为事情比较多的缘故，最近两个月写的代码，超过我过去半年的写的代码的总和 废话少说，直接上wordpress Nginx的rewrite规则，我的博客版本是2.8.5，一切正常，其他的不敢保证 if (-d $request_filename){ rewrite ^/(.*)([^/])$ $1$2/ permanent; } if (-f $request_filename/index.html){ rewrite (.*) $1/index.html break; } if (-f $request_filename/index.php){ rewrite (.*) $1/index.php; } if (!-f $request_filename){ rewrite (.*) /index.php; } 第一条在很多Nginx主机上是默认就可以进行301 move的，意思是：如果请求的是目录，那么将请求rewrite到这个目录里面，不加这一条可能会导致二级或者三级目录无法访问，比如请求地址是http://www.abc.com/abc, abc是一个目录，abc中有一个index.html页面，还有一个名为style的目录，index.html 引用style中的css,js等文件，并且引用方式为相对地址，类似这样的结构：&#60;script type=“text/javascript” src=”style/lib/jquery.js“&#62;&#60;/script&#62;，那么除index.html能被请求到之外，index.html中引用的所有文件的请求，都将是404 &#8230; <a href="http://fendou.org/2009/10/29/wordpress-nginx-rewrite/">继续阅读 <span class="meta-nav">&#8594;</span></a>]]></description>
			<content:encoded><![CDATA[<p>由于godaddy不稳定和龟速，终于把博客搬到自己的VPS上，并且换了一套皮 <img src='http://fendou.org/wp-includes/images/smilies/icon_smile.gif' alt=':)' class='wp-smiley' />  ，最近日子过得比较快，可能因为事情比较多的缘故，最近两个月写的代码，超过我过去半年的写的代码的总和 <img src='http://fendou.org/wp-includes/images/smilies/icon_sad.gif' alt=':(' class='wp-smiley' /><br />
废话少说，直接上wordpress Nginx的rewrite规则，我的博客版本是2.8.5，一切正常，其他的不敢保证</p>
<blockquote><p>if (-d $request_filename){<br />
rewrite ^/(.*)([^/])$ $1$2/ permanent;<br />
}<br />
if (-f $request_filename/index.html){<br />
rewrite (.*) $1/index.html break;<br />
}<br />
if (-f $request_filename/index.php){<br />
rewrite (.*) $1/index.php;<br />
}<br />
if (!-f $request_filename){<br />
rewrite (.*) /index.php;<br />
}</p></blockquote>
<p>第一条在很多Nginx主机上是默认就可以进行301 move的，意思是：如果请求的是目录，那么将请求rewrite到这个目录里面，不加这一条可能会导致二级或者三级目录无法访问，比如请求地址是http://www.abc.com/abc, abc是一个目录，abc中有一个index.html页面，还有一个名为style的目录，index.html 引用style中的css,js等文件，并且引用方式为相对地址，类似这样的结构：&lt;<span>script</span><span> type</span>=<span>“text/javascript” </span><span>src</span><span>=”</span><a href="view-source:http://fendou.org/jquery/style/lib/jquery.js">style/lib/jquery.js</a><span>“</span>&gt;&lt;/<span>script</span>&gt;，那么除index.html能被请求到之外，index.html中引用的所有文件的请求，都将是404</p>
<p>后面三条网上到处都是，如果你不是跟我一样，在Web根目录下放一些jquery，mysql之类的手册，后面三条就足够使用。包括你使用伪静态化</p>
]]></content:encoded>
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