[volunteers] [PenLUG] Help / Ideas needed for next week's

Edward Cherlin echerlin at gmail.com
Sun Jan 21 14:51:11 PST 2007


I can talk about One Laptop Per Child, as I did recently at SVLUG. I
am also available to talk about spam, I18n, and the Open Voting
Consortium. We are porting Linux to a Diebold touch-screen voting
machine so it can run our software and print ballots.

On 1/19/07, Alvin Oga <alvin at mail.linux-consulting.com> wrote:
>
> hi ya mark
>
> > mark weisler wrote:
> >
> > Something on my mind is the future of SMTP (mail) given all the spam problems
>
> fun issue ..
> ask 10 (ten) peole how they solve it and you'll get 50 ( 5-0 ) different and distinct answers
>
> > I'm just about ready to ask Postini if they would speak to our LUG(s).
>
> sounds like a good idea .. since they're down the street
>
> baracuda claims to have lots o corp clients, and some of my custsomers
> uses them to clean their emails
>
> ironport uses a modified spam-assassin and was jsut bought out for $800M by cisco
> whom also claims to have more corp clients than baracuda
>
> "corp clients" does matter because:
> a) they have real $$ to spend
> b) they will change to another vendor if the current one does not solve
>    the spam problem
> c) the clients understand there are several problems with filtering spam
> d) there seems to be very very few spam that gets thru those outsourced filters
>
> - i wonder what people think about when they find out their corp emails is
>   flagged to be read sometimes manually to filter out spam
>         - it's corp mail so "free speech" and privacy does not come into play
>
>         - i'm sure the ceo and cfo and coo have their own private mail address
>         with encryption turned on to "talk" to each other
>
> > * Are we getting to the point where mail server administration is more than=
> > most individuals or smaller shops can reasonably handle?
>
> we've been way past that point for a while ...
> otherwise, the outsourced corp spam filter house would not have been growing
>
> > * What can Postini tell us about special processing techniques they use to
> > manage spam?
>
> i'm not sure they'll get too much into the details of their recipe for their
> golden egg .. but still would be good to hear from them
>
> > * What role might cryptography play in managing spam (by, in part, clearly=
> > identifying the mail originator)
>
> a spammer that does NOT change the body of the content is a "dummy" spammer
>
> md5 on the body ( spam contents ) will always be the same if they do
> not change the body, even if its the first line of: dear "sucker"
>
> if the body is dynamically changed, a 1 second solution, that'd render all
> ( content based ) md5 based spam filter methods useless
>
>         - say 5 minute of perl hack should be able to set you up with a
>         perl based md5 spam filter ... any subsequent incoming email
>         with the same md5 is most likely ( 99.999999999% ) spam
>
> there's gazillion spam filter rules for the gazillion+1 spammer methodologies
>
> -------
>
> i have collected all the ip#, domain names, sender's email addy of any
> incoming spam ... and have seen a drop of incoming spams from a few
> thousand a day to a few hundred now which implies most all spams come
> from the same (spammers mta) sources
>
>         host# grep REJECT access | wc -l
>         19899
>
> c ya
> alvin
>
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-- 
Edward Cherlin
http://www.linkedin.com/profile?viewProfile=&key=82712
OLPC4USA  End Poverty at a Profit
http://wiki.laptop.org/go/OLPC4USA
WIRE AFRICA  http//www.wireafrica.org/




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