Welcome to Baihua Zheng's Homepage!
Assistant Professor
School of Information Systems
Singapore Management University
星期四, 12月 27, 2007
星期三, 12月 12, 2007
星期三, 10月 10, 2007
星期三, 7月 25, 2007
NCTUns Network Simulator and Emulator
NCTUns Network Simulator and Emulator: The NCTUns network simulator and emulator was first released on 11/18/2002. As of July 23, 2007, according to the download user database, more than 8,722 people from 114 countries have registered at the NCTUns web site and downloaded it.
星期三, 7月 18, 2007
Jiannong Cao at Hong Kong PolyU
Jiannong Cao at Hong Kong PolyU
Dr. Jiannong Cao is a professor in the Department of Computing at Hong Kong Polytechnic University. He received the B.Sc. degree in computer science from Nanjing University, China, in 1982, and the M.Sc. and Ph.D. degrees from Washington State University, USA, in 1986 and 1990, all in computer science. From 1982 to 1983, he studied as a MSc. student in the Graduate School of the Chinese Acadmy of Science in Beijing. Before joined the Hong Kong Polytechnic University in 1997, he has been on faculty of computer science in James Cook University and The University of Adelaide in Australia, and the City University of Hong Kong. Dr. Cao is an adjunct professor of BJTU, NUDT and NWPU, and a guest professor of CSU in China. He also held several visiting positions, including a visiting research professor in the National Key Lab for Novel Software Technology, Nanjing University of China, a visiting fellow in the School of Computer Engineering, Nanyang Technological University of Singapore, a visiting scholar at the Institute of Software, Chinese Academy of Science, and Peking University Overseas Scholar Lecture Program.
Dr. Jiannong Cao is a professor in the Department of Computing at Hong Kong Polytechnic University. He received the B.Sc. degree in computer science from Nanjing University, China, in 1982, and the M.Sc. and Ph.D. degrees from Washington State University, USA, in 1986 and 1990, all in computer science. From 1982 to 1983, he studied as a MSc. student in the Graduate School of the Chinese Acadmy of Science in Beijing. Before joined the Hong Kong Polytechnic University in 1997, he has been on faculty of computer science in James Cook University and The University of Adelaide in Australia, and the City University of Hong Kong. Dr. Cao is an adjunct professor of BJTU, NUDT and NWPU, and a guest professor of CSU in China. He also held several visiting positions, including a visiting research professor in the National Key Lab for Novel Software Technology, Nanjing University of China, a visiting fellow in the School of Computer Engineering, Nanyang Technological University of Singapore, a visiting scholar at the Institute of Software, Chinese Academy of Science, and Peking University Overseas Scholar Lecture Program.
星期五, 7月 13, 2007
Center for Experimental Research in Computer Systems - CERCS
Center for Experimental Research in Computer Systems - CERCS： In Fall 2001, the Georgia Tech Center for Experimental Research in Computer Systems (CERCS) opened its doors. CERCS brings together researchers from Georgia Tech's College of Computing and School of Electrical and Computer Engineering who share a common focus on the design and evaluation of computer and software systems through experimental methods. CERCS research focuses on complex systems, including their hardware, communications and system-level software, and applications. By emphasizing the experimental method, we promote the creation of knowledge through the design, implementation, and measurement of potentially large-scale prototype systems.
星期日, 5月 13, 2007
UMBC ebiquity research group
The UMBC eBiquity Research Group consists of faculty and students from the Department of Computer Science and Electrical Engineering (CSEE) of University of Maryland, Baltimore County (UMBC), located in Baltimore MD.
星期六, 3月 31, 2007
星期一, 3月 26, 2007
Java Swing Calculator Source Code
Java Swing Calculator Source Code: "This is a free Java calculator tutorial developed using Java Swing. Below you will find the java code for calculator along with the screenshot. It is a basic four-function calculator java program source code."
星期日, 3月 25, 2007
cs511: Projection Information Page
cs511: Projection Information Page: "SensorNetwork workBench (snBench)
Overview and Terminology Primer "
Overview and Terminology Primer "
星期二, 2月 20, 2007
TinyOS Community Forum || An open-source OS for the networked sensor regime.
TinyOS Community Forum An open-source OS for the networked sensor regime.: "TinyOS is an open-source operating system designed for wireless embedded sensor networks. It features a component-based architecture which enables rapid innovation and implementation while minimizing code size as required by the severe memory constraints inherent in sensor networks."
星期日, 1月 21, 2007
星期六, 12月 30, 2006
Dr. Jie Wu
Dr. Jie Wu
Distinguished Professor
Department of Computer Science and Engineering
Florida Atlantic University
Boca Raton, FL 33431Wireless Networks and Mobile Computing
Distinguished Professor
Department of Computer Science and Engineering
Florida Atlantic University
Boca Raton, FL 33431Wireless Networks and Mobile Computing
星期日, 11月 12, 2006
Drupal Taiwan | 繁體中文支援站
Drupal Taiwan | 繁體中文支援站
Drupal Taiwan是 Drupal 的繁體中文支援站。Drupal是一套開放源碼的內容管理平台，擁有多種實用的功能，可以用來建置從個人網誌到大型網路社群等各種類型的網站。
星期六, 10月 28, 2006
星期六, 10月 21, 2006
星期二, 9月 26, 2006
星期三, 2月 01, 2006
星期日, 1月 01, 2006
SSL/TLS Strong Encryption: FAQ
SSL/TLS Strong Encryption: FAQ
How can I get rid of the pass-phrase dialog at Apache startup time?
The reason this dialog pops up at startup and every re-start is that the RSA private key inside your server.key file is stored in encrypted format for security reasons. The pass-phrase is needed decrypt this file, so it can be read and parsed. Removing the pass-phrase removes a layer of security from your server - proceed with caution!
Remove the encryption from the RSA private key (while keeping a backup copy of the original file):
$ cp server.key server.key.org
$ openssl rsa -in server.key.org -out server.key
Make sure the server.key file is only readable by root:
$ chmod 400 server.key
Now server.key contains an unencrypted copy of the key. If you point your server at this file, it will not prompt you for a pass-phrase. HOWEVER, if anyone gets this key they will be able to impersonate you on the net. PLEASE make sure that the permissions on this file are such that only root or the web server user can read it (preferably get your web server to start as root but run as another user, and have the key readable only by root).
As an alternative approach you can use the ``SSLPassPhraseDialog exec:/path/to/program'' facility. Bear in mind that this is neither more nor less secure, of course.
How can I get rid of the pass-phrase dialog at Apache startup time?
The reason this dialog pops up at startup and every re-start is that the RSA private key inside your server.key file is stored in encrypted format for security reasons. The pass-phrase is needed decrypt this file, so it can be read and parsed. Removing the pass-phrase removes a layer of security from your server - proceed with caution!
Remove the encryption from the RSA private key (while keeping a backup copy of the original file):
$ cp server.key server.key.org
$ openssl rsa -in server.key.org -out server.key
Make sure the server.key file is only readable by root:
$ chmod 400 server.key
Now server.key contains an unencrypted copy of the key. If you point your server at this file, it will not prompt you for a pass-phrase. HOWEVER, if anyone gets this key they will be able to impersonate you on the net. PLEASE make sure that the permissions on this file are such that only root or the web server user can read it (preferably get your web server to start as root but run as another user, and have the key readable only by root).
As an alternative approach you can use the ``SSLPassPhraseDialog exec:/path/to/program'' facility. Bear in mind that this is neither more nor less secure, of course.
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