Extrusion Detection
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Errata (24 October 2006)
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Changes to 2nd Printing:

p 143, footnote 5, change "http://www.csoonline.com/read/oso105/extortion.html" 
to "http://www.csoonline.com/read/050105/extortion.html"; thanks Paul Maschak

Changes to 1st Printing:

p xiv: 2nd para, change "despite the good work done by a variety of vendors" with
"despite the good work done by many vendors"

p 57: 2nd para, change "IP address of the bridge, 192.168.1.2." to
"IP address of the bridge, 192.168.1.12."

p 68: 2nd para, URL does not have a hyphen in it; e.g., should be 
http://majorgeeks.com/page.php?id=12

p 82: Figure 3-2: change "53 TCP" to "53 UDP and TCP"

p 83: 1st para, change "port 53 UDP" to "port 53 UDP and TCP"

p 108: Add "Copyright © 1996-2005 Net Optics, Inc." to Figure 4-2 caption.

p 108: Add "Copyright © 1996-2005 Net Optics, Inc." to Figure 4-3 caption.

p 109: Add "Copyright © 1996-2005 Net Optics, Inc." to Figure 4-4 caption.

p 110: Remove "Copyright © 1996-2005 Net Optics, Inc." from Figure 4-5 caption.

p 115: Add "Copyright © 1996-2005 Net Optics, Inc." to Figure 4-8 caption.

p 115: Add "Copyright © 1996-2005 Net Optics, Inc." to Figure 4-9 caption.

p 116: Add "Copyright © 1996-2005 Net Optics, Inc." to Figure 4-10 caption.

p 124: Add "Copyright © 1996-2005 Net Optics, Inc." to Figure 4-15 caption.

p 125: Add "Copyright © 1996-2005 Net Optics, Inc." to Figure 4-16 caption.