September 2007 Meeting

Kerry Garrison is back to demo the new trixbox Pro product from Fonality. This latest incarnation uses the hybrid-hosted model developed by Fonality for
PBXtra, but gives installers the control over the hardware and phone
provisioning that they enjoy with trixbox CE.

Kerry Garrison has been in the IT industry for over 20 years with positions
ranging from IT Director of a large multi-site distribution company to
developing a large hosted web server platform for a major ISP, to running his
own IT consulting business in Southern California. Kerry was introduced to the world of Asterisk by a friend and began installing Asterisk-based phone
systems for his small business clients. He wrote articles about Asterisk and
trixbox that became extremely popular on the net, and eventually published the definitive book on trixbox, "trixbox Made Easy." Today, Kerry is the senior
product development manager for trixbox at Fonality. Kerry regularly speaks at trade shows, user groups, and radio programs. He is also the publisher of both and Kerry is an
avid amateur photographer who writes tutorials and product reviews for his
photography blog site at

Date: Thursday September 13, 2007 7:00 PM - 9:00 PM
Location: Downs 107

August 2007 Meeting

X509 and SSL are complicated topics. While they share the basic PKI
infrastructure that PGP and others do, X509 (and SSL by extension) are more
complicated. Extending beyond the basic encryption, signing, decryption, and
verification of basic PKI, X509 includes a variety of extra pieces and
information enabling more features. This talk will cover what X509 and SSL
are, how they relate, how to use them, and how to learn more. It will discuss
PKI from both an certificate end-user perspective as well as from a
Certificate Authority perspective. If time permits, a small comparison to PGP
will also be included akin to the one at the end of my PGP talk.

Phil Dibowitz is a Senior UNIX Systems Administrator for the Web Systems team
at Ticketmaster. Web Systems manages the infrastructure:
roughly 2000 linux systems organized in four independent, redundant, and
geographically separate clusters across the US. Phil has worked in IT for 9
years and has worked as a Linux, Solaris, and Network Administrator, and has a BS in Computer Engineering and Computer Science from USC. He is also the
author of iptstate(8), mime_dump(1), and check_x509(1), co-founder of the MSS
Initiative, and works on IP Filter and the USB Storage driver in the linux
kernel. Find out more about Phil Dibowitz at

Date: Thursday August 9, 2007 7:00 PM - 9:00 PM
Location: Downs 107

July 2007 Meeting

Date: Thursday July 12, 2007 7:00 PM - 9:00 PM
Location: Downs 107

June 2007 Meeting

At this meeting Thomas Chung will give a short presentation on the "State of
the Fedora Project and FC7." Chung is a Fedora Ambassador for Southern
California and has worked on such projects as Open Webmail, OpenAFS, Mplayer
plug-in, X-CD-Roast, QEMU and the Helix Player.

Date: Thursday June 14, 2007 7:00 PM - 9:00 PM
Location: Downs 107

May 2007 Meeting

Date: Thursday May 10, 2007 7:00 PM - 9:00 PM
Location: Downs 107

April 2007 Meeting

Short presentation on Port Knocking and Wake-On-LAN.

Date: Thursday April 12, 2007 7:00 PM - 9:00 PM
Location: Downs 107