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DLSLUG 1-March-2007: Bill Stearns on “50 Ways to Run Your Programs”

Fourteen attendees managed to find the monthly meeting of the Dartmouth – Lake Sunapee Linux User Group, despite being held one floor up from the regular meeting room. (A reminder from yours truly that you can save yourself a trip down and up the stairs if you just Read The Fine Announcement Bill McGonigle prepares each month. I needed the exercise anyway.)

Bill Stearns presented “50 Ways to Run Your Programs,” He had tremendous handouts: a vinyl 3-ring notebook binder with 61 pages. He asked us all to skim the materials and pick out the couple of techniques we wanted to drill down into. He covered in some depth (though each could get its own book): passing commands through ssh, combining screen with ssh, using wget as part of a pipe, how wget can work with caching, using tee to redirect output through the pipe as well as to a file simultaneously, the precedence of && in sequencing commands on the command line, some of the implications of subshells and environment variables, gotchas with cron, using eval and netcat. Bill is knowledgeable and rolled well with the punches, like his new HP widescreen battleship of a laptop refusing to run X on the projector. (Bill had an aside about the joys of Open Source providing the means of fixing some bad interrupt logic in the BIOs with a kernel switch – yay, Open Source!) Bill hardly broke a sweat despite the attendance of Professor McIlroy, who is credited with having invented the pipes and filters architecture of Unix. A good time was had by all, with lots of time for questions (from novices “What does that do?” to some pretty advanced questions on piping and subshells and so forth.)

Next meeting is 5 April when Todd Underwood will present ZFS. Thanks to Bill McGonigle for organizing the meeting, Bill Stearns for the great presentation, and all for participating.

DLSLUG, March 1st 2007: 50 Ways to Run Your Programs

Bill McGonigle announces the March meeting of the Dartmouth-Lake Sunapee Linux User Group, featuring “50 Ways to Run Your Programs” presented by Bill Stearns. Sounds like a great meeting!

“At this meeting Bill will explore ways to change how programs run. He will cover ways to change a program’s priority, where it runs, when it runs, debug new and running applications, and much more. Attendees are welcome, and encouraged, to bring their own laptops and try new techniques that will help them tap the power of a Linux environment.”

“William Stearns is a network security researcher and instructor for the SANS Institute, teaching the Linux System Administration and Perimeter Security tracks. In his spare time he maintains a major antispam blacklist and assists the technical community as a volunteer incident handler for the Internet Storm Center. His articles and tools can be found in SysAdmin magazine, online journals, and at http://www.stearns.org.”

MonadLUG notes: 8-Feb-2007: uniq and Joomla!

Charlie Farinella called the meeting to order promptly at 7 PM and cracked his whip to stick to his streamlined agenda. Brief announcements (“find GNHLUG events on www.gnhlug.org”) were followed by Ray Côté’s presentation of uniq. Ray explained the function and then introduced an increasingly complex set of examples, one building on another to show how uniq could remove duplicate lines from a sorted file, display various counts of duplicates and so forth.

Guy Pardoe was the main presenter. After the requisite wrestling with the projector, Guy talked about Joomla! Guy had hoped to be showing version 1.5, but it is still in early beta (beta 1 with beta 2 due rsn), so he didn’t feel it was ready to talk about for production sites. Guy explained when he volunteered for the presentation he thought 1.5 would be available, and promised to return when 1.5 was available and he had some experience in using it for production work. He briefly reviewed Barrie North’s presentation from DLSLUG last year (registration required) (and our notes from that meeting). Guy then showed us the Joomla! 1.0 correction: 1.5 install he had done that day, highlighting the basic features of the CMS and the ease of use of the administrative interface. It appeared to be a very open and accessible system. Templates and CSS files could be edited from within the interface and they appeared to be XHTML and CSS2 compliant.

A general Q&A followed. General concerns on the security of the core framework. Concern about the timeliness of the 1.5 release. General discussion of what CMS could do and what the target market was.

After the main presentation, the floor was opened up for general discussion. Maddog announced that he and Bill Sconce had met with faculty at the New Hampshire Technical Institute and that a plan to hold a series of MythTV Installfests was proposed (see the -org list for details).

Answering another question that has come up on the discusssion list, I came across this post while I was looking for Barrie’s presentation. While he is advocating for Joomla!, of course, he may be pointing out that WordPress would meet some peoples needs as well.

Why you want to use Joomla! instead of WordPress

Thirteen attendees were at the meeting. Thanks to Charlie for running the meeting, Ray and Guy for presenting, Ken and the Monadnock SAU for providing the facilities, and to maddog and all attendees for participating!

Notes from CentraLUG meeting, 5-Feb-2007: Matt Brodeur and GNUPrivacyGuard

We were lucky last night to have Matt Brodeur drive up from his day job at RedHat in Westford, MA to present a meeting on GPG, the open source implementation of OpenPGP, the Pretty Good Privacy algorithms and utilities. Matt had a slideshow in OpenOffice.org 2 Impress (available at http://www.nexttime.com/mbrodeur/GPG2007) and in PDF here.

Eleven attendees made it to the meeting. Matt briefly discussed the origins of PGP, and then dove right into the process and utilities of how Privacy Guard works. Matt also had brought some scripts he replayed to walk through the sequence of generating a key pair, signing another’s key, sharing keys to a keyserver. Matt walked us through the concepts behind the Web of Trust and the issues and processes of revoking keys. During the presentation and following, there were a fair number of questions and Matt dealt with them well.

Although we had hoped to have a keysigning as part of the meeting, we elected to postpone that portion to future meetings. As the group is fairly small, we agreed we can do individual signings as needed.

Future meetings: March 5th will feature Andy Bair talking about “Digital Forensics File Carving,” a popular topic he’s presented at several other groups. On April 2nd, William Stearns will do a presentation on Logical Volume Management. I saw Bill do an LVM presentation at DLSLUG back in 2005, and he had a great presentation. Looking forward to seeing both presentations!

DLSLUG, 2 Nov-2006: FOSS in Schools

Bill McGonigle announces the November 2nd meeting of the Dartmouth-lake Sunapee Linux User Group meeting, at a different location than usual:

The next regular monthly meeting of the DLSLUG will be held Thursday, November 2nd, 7-9PM at Dartmouth College, Silsby Hall, Room 312. All are welcome, free of charge.

“Open Source in Schools” presented by Dave Clifton

Dave will be talking about the use of Free / Open Source Software in schools and will chronicle the growth of the infrastructure at the Plainfield Elementary School (NH SAU 32) since 2002. There will be an emphasis on choosing appropriate software, the real costs of going down the F/OSS path, and some potentially surprising stories about what the Plainfield School is doing today.

Dave is currently a Senior Systems Administrator for
Ansys (formerly Fluent) in Lebanon, NH. He holds a Master's degree in Applied Mathematics from Johns Hopkins and spent ten years doing consulting work for various government agencies and Bell Atlantic before escaping from DC to the Upper Valley in 1998. He got his start as a sysadmin in the mid-1980s running Masscomp Real-Time Unix and SunOS 4.0.3 and has subsequently worked on more operating systems than he wants to remember.

DLSLUG, October 5th, 7 PM: Protecting a Windows Server with a $50 Linux Box from Staples

Bill McGonigle announces Thursday's Dartmouth-Lake Sunapee Linux User Group: “Protecting a Windows Server with a $50 Linux Box from Staples” presented by Lloyd Kvam:

“Lloyd will talk about OpenWRT, the open source linux distribution that targets small routers such as the Linksys WRT45GL. He recently used one to make a bridging firewall, where a Windows computer needed protection, but there was no access to the router.”

“Lloyd will talk about hardware organization, installing packages, the layout of the default configuration, and how to customize the routing and firewall operations… Lloyd works at software development, preferably in Python.”

Should be a fun meeting. Hope to see you there!

Wind River Systems presenting at Dartmouth-Lake Sunapee Linux User Group, Thursday August 3rd

From the DLSLUG announcement list:

The next regular monthly meeting of the DLSLUG will be held Thursday, August 3rd, 7-9PM at Dartmouth College, Carson Hall, Room L02. All are welcome, free of charge.

Agenda

7:00 Sign-in, networking

7:15 Introductory remarks

7:20 “Taking Open Source, Enterprise-Class applications off the desktop and into the Field” presented by Thomas Hall, Technical Account Manager, Wind River Systems

“There are many compelling reasons to adopt Open Source applications for the desktop; one asks… Why stop there? Well, turns out there are significant technical hurdles to overcome minimal resources – successfully scaling powerful Open Source applications like Apache and MySQL into a handheld device requires Linux development and testing
tools well beyond printf.”

“However, while the groundswell of interest in the Linux OS has resulted in highly stable, mature kernels, this interest has not yet translated into commercial-quality Public Domain development tools. While it is comforting to have a ubiquitous technology like GDB available, one wants to further draw on best-in-class tools and paradigms that have been developed in the commercial software development space.”

“Wind River Systems will present on this topic and demonstrate the Eclipse-based Workbench IDE and Platform for Consumer Device, Linux Edition. As time permits, several commercially available products will be demonstrated running Wind River Linux.”

8:30 Roundtable Exchange – where the attendees can make announcements or ask a linux question of the group.

Python Special Interest Group: July 27th, Cole Tuininga on Myghty

On the Python-Talk mailing list, Bill Sconce of the GNHLUG PySIG announces the July meeting:

“The next meeting of the New Hampshire PySIG will be one week from
tonight — the 27th of July, 7:00 PM at the usual fine place, the
Amoskeag Business Incubator.”

“Our topics will be everything that's fair game to Python, including
a report by Bill on the Northeast Linux Symposium, where Python RULED,
and a remarkable development sprint by Jeff Elkner's students.”

“Our featured speaker will be Cole Tuininga, a founding member of PySIG, who knows a lot about “other languages” as well as Python, and who will tell us about Myghty.”

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