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	<title>Henry&#039;s Points</title>
	<link>http://henrydu.com/blog</link>
	<description>Think analog, act digital</description>
	<lastBuildDate>Wed, 04 Aug 2010 18:08:45 +0000</lastBuildDate>
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	<language>en</language>
	
	<item>
		<title>JVM Memory Management</title>
		<description><![CDATA[JVM is still an application running on the OS. It&#8217;s interesting to know how JVM manages memory. Better performance in production servers is possible with proper configuration of JVM parameters, particularly those related to memory usage and garbage collection. The allocation of memory for the JVM is specified using -X options.
Heap Size

-Xms: initial java heap [...]]]></description>
		<link>http://henrydu.com/blog/coding/jvm-memory-management-345.html</link>
			</item>
	<item>
		<title>Windows Vista Firewall Turn On/Off</title>
		<description><![CDATA[Windows Vista has three level of firewall profile: Domain Profile, Private Profile and Public Profile. All firewall is on by default. If we want to turn off firewall for our own user, we may go to Windows Vista System Administraion -&#62; Firewall and Advanced Security Center. We see the configuration is complicated. There are tons [...]]]></description>
		<link>http://henrydu.com/blog/how-to/windows-vista-firewall-turn-onoff-339.html</link>
			</item>
	<item>
		<title>Windows TCP 139 and 445 Vulnerability</title>
		<description><![CDATA[Although those two ports are well known for security reason for a long time, we still hope to know something in details. As we know, NFS (Netwrok File Systems) is developed by Sun. It&#8217;s mainly for sharing directories and files between UNIX machines. Microsoft invented a protocol called SMB (Sever Message Blocks), by which, people [...]]]></description>
		<link>http://henrydu.com/blog/networks/windows-tcp-139-and-445-vulnerability-335.html</link>
			</item>
	<item>
		<title>Network Vulnerability Assessment &#8211; OVAL Test</title>
		<description><![CDATA[Last time I briefly introduced OVAL Definition, I&#8217;ll continue for OVAL Test. Please note that both definition and test are defined in the same XML file. The OVAL test is subroutine of criteria defined in definition section. Here is an example of criteria for JScript 5.7 on Microsoft Windows XP SP3.
&#60;criteria operator=&#8221;AND&#8221; comment=&#8221;JScript 5.7 on [...]]]></description>
		<link>http://henrydu.com/blog/networks/network-vulnerability-assessment-oval-test-333.html</link>
			</item>
	<item>
		<title>Network Security Assessment &#8211; OVAL Definition</title>
		<description><![CDATA[I have briefly mentioned network security assessment part 1 and part 2, here I&#8217;d like to introduce how to do the vulnerability test. In terms of penetration test, this test is white box test because the tester has put the sensor or agent in the asset. This operation is allowed by the firm.
OVAL is Open [...]]]></description>
		<link>http://henrydu.com/blog/networks/network-security-assessment-oval-definition-331.html</link>
			</item>
	<item>
		<title>iPod Touch Vulnerability after Jailbreak</title>
		<description><![CDATA[As you may know or may not know, there is a vulnerability for iPod Touch after jailbreak. The root password is hard-coded as &#8220;alpine&#8221;. If your iPod Touch connect to the hotspot network, people who is in the same subnet can do the following:

Nmap the whole subnet.
sudo nmap -A -O -T4 112.55.82.0/24
The scan result will [...]]]></description>
		<link>http://henrydu.com/blog/cool-stuff/ipod-touch-vulnerability-after-jailbreak-329.html</link>
			</item>
	<item>
		<title>Vancouver City Featuring</title>
		<description><![CDATA[This is the city where I am living.

]]></description>
		<link>http://henrydu.com/blog/travel-log/vancouver-city-featuring-323.html</link>
			</item>
	<item>
		<title>ASA Simulation on Ubunut QEMU</title>
		<description><![CDATA[When I tried to find the Cisco ASA simulator by Linux keyword, there are few related results came out. Two popular ways are setting up on Windows QEMU and VMWare. People who are using Windows can refer to that.

Windows QEMU
Windows VMWare

However, I found one site that is really useful to install ASA image to QEMU [...]]]></description>
		<link>http://henrydu.com/blog/how-to/linux/asa-simulation-on-ubunut-qemu-321.html</link>
			</item>
	<item>
		<title>Network Security Assessment Reading Notes – Vulnerability Assessment</title>
		<description><![CDATA[This chapter is called vulnerability assessment 101. I guess this is because the topic is too huge to fit in the one chapter, even in the one book. According to the book, the assessment basically divided to three steps.
The first step is to collect information. The commonly used tool is nmap, which is open source [...]]]></description>
		<link>http://henrydu.com/blog/networks/network-security-assessment-reading-notes-%e2%80%93-vulnerability-assessment-319.html</link>
			</item>
	<item>
		<title>Network Security Assessment &#8211; Reading Notes 1</title>
		<description><![CDATA[Recently I found the blog is good place to put my reading notes. So, let me start the first one. Since I am involving in network vulnerability scan job, This book is really fundamental and provides a lot of easy understanding definition and terminologies rather than jargons. The book name is Network Security Assessment: From [...]]]></description>
		<link>http://henrydu.com/blog/networks/network-security-assessment-reading-notes-1-316.html</link>
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