Re: [PLUG] [plug-announce] Wed, Nov 1, 2017: PLUG Central - "NTPsec 1.0" by Eric S. Raymond (7pm at USP)

[Walt Mankowski <waltman@pobox.com>]

If you're looking for a brief introduction to how NTP works before
Eric's talk tomorrow night, Joel Potischman had a great talk about it
at this year's !!Con:

https://www.youtube.com/watch?v=MDmNvVG9AnQ

On Mon, Oct 30, 2017 at 06:44:57PM -0400, Paul L. Snyder wrote:
> ------------------ PLEASE NOTE ------------------
> If the doors to Griffith Hall are locked, USP
> security will let you into the building if you
> call them. Please see below in this message for
> full instructions.
> -------------------------------------------------
> 
> PLUG Central will be meeting on Wednesday, November 1 at USP in 
> Philadelphia, beginning at 7pm. Directions to the meeting location 
> at the University of the Sciences in Philadelphia can be found at 
> the end of this email. 
> 
> This month, PLUG Central will be hosting a talk by Eric S.
> Raymond about NTPsec, a security-oriented implementation of the
> Network Time Protocol by the NTPsec project. Eric is the author
> of the widely cited 1997 essay and 1999 book The Cathedral and
> the Bazaar and other works, and open-source software advocate.
> He describes his talk as follows:
> 
>   Internet time service requires Byzantine algorithms and was
>   long surrounded by code of legendary gnarliness and obscurity.
>   That code turned into a maintainance nightmare and eventually a
>   security problem.  Two and a half years ago, Eric Raymond and a
>   crack team of software archeologists went in to unsnarl the
>   mess. In early October they shipped NTPsec 1.0.
> 
>   This talk is Eric's field report. It's about the special
>   challenges of time service, and the odd discoveries to be found
>   in large, ancient codebases. It's about what's like to remove
>   176KLOC from a 231KLOC codebase - 76%! - and still have it
>   actually work afterwards. It's about how Brooksian surgical
>   teams still rock, and better living through Pythonization.
>   Anyone with an interest in how serious software engineering is
>   done by masters of the craft can expect to be both educated and
>   entertained.
> 
> Hope to see you there!
> 
>   University of the Sciences in Philadelphia (USP) 
>   Griffith Hall (Room "C" or "A", look for the signs) 
>   600 South 43rd Street 
>   Philadelphia, PA 19104-4495 
> 
> USP is located in University City. Driving directions are 
> available at http://www.phillylinux.org/locations/usp.html, or 
> http://www.usip.edu/directions, both of which have an aerial 
> view of the campus buildings. USP is also easily accessible by 
> public transportation. 
> 
> For those attending PLUG Central, if you arrive and the doors are
> locked you can call UCS's public safety number at 215.895.1117
> and they will radio personnel in the guard booth or someone else
> to unlock the door.  If you are asked who is sponsoring the
> meeting you can say "Zhiwei Liu" in the Chemistry department.
> 
> There will be an open Question & Answer session at 7PM, prior to 
> the main presentation at 8PM. This is an open meeting; all are 
> welcome and encouraged to attend. 
> 
> Usually, a number of members get together after the meeting at a 
> nearby restaurant for food and perhaps a beer or two. Come join 
> the camaraderie! 
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> ___________________________________________________________________________
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