Re: [SLUG] iptables and Derek's lesson

From: Derek Glidden (dglidden@illusionary.com)
Date: Thu Nov 15 2001 - 17:04:08 EST


Greg Schmidt wrote:
>
> I'm finally getting around to learning iptables, and I was wondering if
> Derek's marvelous, wonderful, kick-butt presentation of a few months back
> ever got put in a place where we could grab it or see it.
>
> If it has been, sorry I missed the message, but please remind me.

Good question... :)

I'll take a look around the various websites I'm allowed to touch and
see if I posted it anyplace. If not, I'll try to get it up on
www.nks.net in the next day or two.

-- 
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
#!/usr/bin/perl -w
$_='while(read+STDIN,$_,2048){$a=29;$b=73;$c=142;$t=255;@t=map
{$_%16or$t^=$c^=($m=(11,10,116,100,11,122,20,100)[$_/16%8])&110;
$t^=(72,@z=(64,72,$a^=12*($_%16-2?0:$m&17)),$b^=$_%64?12:0,@z)
[$_%8]}(16..271);if((@a=unx"C*",$_)[20]&48){$h=5;$_=unxb24,join
"",@b=map{xB8,unxb8,chr($_^$a[--$h+84])}@ARGV;s/...$/1$&/;$d=
unxV,xb25,$_;$e=256|(ord$b[4])<<9|ord$b[3];$d=$d>>8^($f=$t&($d
>>12^$d>>4^$d^$d/8))<<17,$e=$e>>8^($t&($g=($q=$e>>14&7^$e)^$q*
8^$q<<6))<<9,$_=$t[$_]^(($h>>=8)+=$f+(~$g&$t))for@a[128..$#a]}
print+x"C*",@a}';s/x/pack+/g;eval 

usage: qrpff 153 2 8 105 225 < /mnt/dvd/VOB_FILENAME \ | extract_mpeg2 | mpeg2dec -

http://www.cs.cmu.edu/~dst/DeCSS/Gallery/ http://www.eff.org/ http://www.anti-dmca.org/ http://www.sciencemag.org/cgi/content/full/293/5537/2028



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