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	<title>稀饭的国度 &#187; network</title>
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	<link>http://blog.thematice.com</link>
	<description>发现自己的脑袋不好使了，用blog来记录真的很好用。</description>
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		<title>speedometer出网络图`很小很强大~</title>
		<link>http://blog.thematice.com/html/y2009/12/18/909/speedometer%e5%87%ba%e7%bd%91%e7%bb%9c%e5%9b%be%e5%be%88%e5%b0%8f%e5%be%88%e5%bc%ba%e5%a4%a7.html#utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=speedometer%25e5%2587%25ba%25e7%25bd%2591%25e7%25bb%259c%25e5%259b%25be%25e5%25be%2588%25e5%25b0%258f%25e5%25be%2588%25e5%25bc%25ba%25e5%25a4%25a7</link>
		<comments>http://blog.thematice.com/html/y2009/12/18/909/speedometer%e5%87%ba%e7%bd%91%e7%bb%9c%e5%9b%be%e5%be%88%e5%b0%8f%e5%be%88%e5%bc%ba%e5%a4%a7.html#comments</comments>
		<pubDate>Fri, 18 Dec 2009 03:26:15 +0000</pubDate>
		<dc:creator>稀饭</dc:creator>
				<category><![CDATA[linux shell]]></category>
		<category><![CDATA[Linux tools]]></category>
		<category><![CDATA[python]]></category>
		<category><![CDATA[net]]></category>
		<category><![CDATA[network]]></category>
		<category><![CDATA[pic]]></category>
		<category><![CDATA[speedometer]]></category>
		<category><![CDATA[tools]]></category>
		<category><![CDATA[监控]]></category>

		<guid isPermaLink="false">http://blog.thematice.com/?p=909</guid>
		<description><![CDATA[&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; 今天在强大的网络上发先一个很小很强大的软件，出图效果很不错~~所以介绍给大家。`安装很方便“只要你的系统支持 python&#160; 但是如果你没有安装 python-urwid 不会出图，只会有数字显示~~好了下面讲安装~~ &#160; PS :需要 python 2.6 以上支持~ &#160; shell $&#62; wget http://excess.org/speedometer/speedometer.py shell $&#62; apt-get install python-urwid shell $&#62; cp speedometer.py /usr/local/bin/speedometer shell $&#62; chown root: /usr/local/bin/speedometer shell $&#62; chmod 755 /usr/local/bin/speedometer shell $&#62; speedometer.py/usr/local/bin/speedometer.py:21: DeprecationWarning: The popen2 module is deprecated.&#160; Use the subprocess module.&#160; import popen2Usage: speedometer [options] tap [...]]]></description>
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		<title>erlang网络编程的几个性能调优和注意点</title>
		<link>http://blog.thematice.com/html/y2009/10/25/782/erlang%e7%bd%91%e7%bb%9c%e7%bc%96%e7%a8%8b%e7%9a%84%e5%87%a0%e4%b8%aa%e6%80%a7%e8%83%bd%e8%b0%83%e4%bc%98%e5%92%8c%e6%b3%a8%e6%84%8f%e7%82%b9.html#utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=erlang%25e7%25bd%2591%25e7%25bb%259c%25e7%25bc%2596%25e7%25a8%258b%25e7%259a%2584%25e5%2587%25a0%25e4%25b8%25aa%25e6%2580%25a7%25e8%2583%25bd%25e8%25b0%2583%25e4%25bc%2598%25e5%2592%258c%25e6%25b3%25a8%25e6%2584%258f%25e7%2582%25b9</link>
		<comments>http://blog.thematice.com/html/y2009/10/25/782/erlang%e7%bd%91%e7%bb%9c%e7%bc%96%e7%a8%8b%e7%9a%84%e5%87%a0%e4%b8%aa%e6%80%a7%e8%83%bd%e8%b0%83%e4%bc%98%e5%92%8c%e6%b3%a8%e6%84%8f%e7%82%b9.html#comments</comments>
		<pubDate>Sun, 25 Oct 2009 01:28:45 +0000</pubDate>
		<dc:creator>稀饭</dc:creator>
				<category><![CDATA[erlang]]></category>
		<category><![CDATA[云计算]]></category>
		<category><![CDATA[Linux]]></category>
		<category><![CDATA[network]]></category>
		<category><![CDATA[web]]></category>

		<guid isPermaLink="false">http://blog.thematice.com/?p=782</guid>
		<description><![CDATA[前些天给echo_server写了个非常简单的连接压力测试程序, 代码 ?Download echo_server.erl1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 -module(stress_test). &#160; -export([start/0, tests/1]). &#160; start() -&#62; tests(12345). &#160; tests(Port) -&#62; io:format(&#34;starting~n&#34;), spawn(fun() -&#62; test(Port) end), spawn(fun() -&#62; test(Port) end), spawn(fun() -&#62; test(Port) end), spawn(fun() -&#62; test(Port) end). &#160; test(Port) -&#62; [...]]]></description>
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		<title>《Linux的snmp》练习题</title>
		<link>http://blog.thematice.com/html/y2009/06/03/522/linux-snmp-tes.html#utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=linux-snmp-tes</link>
		<comments>http://blog.thematice.com/html/y2009/06/03/522/linux-snmp-tes.html#comments</comments>
		<pubDate>Wed, 03 Jun 2009 08:53:20 +0000</pubDate>
		<dc:creator>稀饭</dc:creator>
				<category><![CDATA[Linux]]></category>
		<category><![CDATA[linux shell]]></category>
		<category><![CDATA[Linux tools]]></category>
		<category><![CDATA[cacit]]></category>
		<category><![CDATA[configure]]></category>
		<category><![CDATA[network]]></category>
		<category><![CDATA[snmpd]]></category>

		<guid isPermaLink="false">http://blog.thematice.com/?p=522</guid>
		<description><![CDATA[1)配置snmp,编辑/etc/snmp/snmpd.conf 1.1)首选是定义一个共同体名(community),这里是public,及可以访问这个public的用户名(sec name)，这里是notConfigUser。Public相当于用户notConfigUser的密码 1.2)定义一个组名（groupName）这里是notConfigGroup，及组的安全级别，把notConfigUser这个用户加到这个组中。 1.3)定义一个可操作的范围(view)名， 这里是all，范围是 .1 1.4)定义notConfigUser这个组在all这个view范围内可做的操作，这时定义了notConfigUser组的成员可对.1这个范围做只读操作。 1.5)重启snmpd服务 1.6)列出snmpd开放端口 参考答案: vi /etc/snmp/snmpd.conf 做如下修改: # sec.name source community com2sec notConfigUser default public # groupName securityModel securityName group notConfigGroup v1 notConfigUser group notConfigGroup v2c notConfigUser # name incl/excl subtree mask(optional) view all included .1 # group context sec.model sec.level prefix read write notif access notConfigGroup “” [...]]]></description>
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		<title>服务器前台常出现的提示及含意</title>
		<link>http://blog.thematice.com/html/y2009/05/27/518/server-front-there-are-hints-and-implications-of.html#utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=server-front-there-are-hints-and-implications-of</link>
		<comments>http://blog.thematice.com/html/y2009/05/27/518/server-front-there-are-hints-and-implications-of.html#comments</comments>
		<pubDate>Wed, 27 May 2009 08:34:49 +0000</pubDate>
		<dc:creator>稀饭</dc:creator>
				<category><![CDATA[Linux]]></category>
		<category><![CDATA[Linux net]]></category>
		<category><![CDATA[Linux tools]]></category>
		<category><![CDATA[dmesg]]></category>
		<category><![CDATA[kernel(2)]]></category>
		<category><![CDATA[network]]></category>

		<guid isPermaLink="false">http://blog.thematice.com/?p=518</guid>
		<description><![CDATA[服务器前台常出现的提示及含意 一般类的提示 eth1: Too much work at interrupt, IntrStatus=0&#215;0001 这条提示的含意为. 某网卡的中断请求过多. 如果只是偶尔出现一次可忽略. 但这条提示如果经常出现或是集中出现,那涉及到的可能性就比较多有可能需要进行处理了. 可能性比较多,如网卡性能;服务器性能;网络攻击..等等. 一般类的提示 IPVS: incoming ICMP: failed checksum from 61.172.0.X! 服务器收到了一个校验和错误的ICMP数据包. 这类的数据包有可能是非法产生的垃圾数据.但从目前来看服务器收到这样的数据非常多.一般都忽略. 一般代理服务器在工作时会每秒钟转发几千个数据包.收到几个错误数据包不会影响正常的工作. 这是问我最多的一类提示了. 一般类的提示 NET: N messages suppressed. 服务器忽略了 N 个数据包.和上一条提示类似.服务器收到的数据包被认为是无用的垃圾数据数据. 这类数据多是由攻击类的程序产生的. 这条提示如果 N 比较小的时候可以忽略.但如果经常或是长时间出现3位数据以上的这类提示.就很有可能是服务器受到了垃圾数据类的带宽攻击了. 一般类的提示 UDP: bad checksum. From 221.200.X.X:50279 to 218.62.X.X:1155 ulen 24 UDP: short packet: 218.2.X.X:3072 3640/217 to 222.168.X.X:57596 [...]]]></description>
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