Sent: Friday, 22 July 2005 9:28 a.m. Subject: Network Security Seminar next Tuesday Computer Science (INRG) / ITSS **SEMINAR** Abe Singer, San Diego Supercomputer Centre "Security without Firewalls" and "Logging Infrastructure and Log Analysis" Two talks on Network Scurity When: 10:15 - 11:45 am, next Tuesday, 26 July 05 Where: Computer Science (i.e. Science Centre Extension) room 279 Abe Singer is a member of the Security Technologies Group at the San Diego Supercomputer Center. In providing operational security for the Center, he participates in incident response and forensics, and is expanding the SDSC logging infrastructure. His research is in pattern analysis of syslog data for data mining. Abe is the author of "Building a Logging Infrastructure" (SAGE, 2004. http://www.sage.org), and is currently writing a book on Log Analysis, due out around January 2006. "Security without Firewalls" Firewalls are popularly believed to be the "correct" approach to effectively securing a network. However, there is little practical basis for these beliefs, and the San Diego Supercomputer Center's track record, while not perfect, has demonstrated that there are other methods to securing networks that may be more effective. This talk will explain some of the common myths and realities about security practices, and how SDSC maintains a pretty robust environment. If time permits Abe will also present "Logging Infrastructure and Log Analysis" Syslog data contains a wealth of information about activity on a Unix system, which can be used for a variety of things from managing resource utilization to intrusion detection. Data mining this information could reveal interesting things about a system, such as indications of an attack or intrusion. Basic analytical techniques such as baselining/thresholding and anomaly detection alone would be useful for detecting "interesting" activity. However, Raw syslog data does not lend itself to these analysis methods. Syslog messages are free-form text, without any information which identifies message class or attributes. In order to apply data mining techniques to syslog data, one needs classifiers which can uniquely identify messages and their attributes. Furthermore, it seems that the number of classifiers needed is large enough that they cannot be set up manually. Abe has been working on a methods of auto-generating these classifiers, and will present the results he has achieved so far. -----------------------------------------------------------------------