Yoshiaki Kasahara has been an Assistant Professor at Research Institute for Information Technology, Kyushu University after receiving a Doctor of Engineering degree from the same university. My research interest includes networking, server administration, and network security. Also I'm working as one of system administrators for Kyushu University campus network. My experience includes mail service, web hosting, DNS, IDS, and so on. I'm a co-chair of APAN (Asia Pacific Advanced Network) Security working group.