Page 53 - Multiple Interfaces section: The first sentence says that "...there's no doubt that it will be
called eth0". Ironically, this immediately follows a section that tells how interface names can be changed. This should
be changed to "... there's no doubt that the default name is eth0".
Page 64 - Second paragraph above the PCMCIA and PC Card Interfaces section: Aliases created with ip indeed
do not appear in ifconfig listings - but they could if you assign a name using a command line parameter.
Page 541 - Step 5, fifth line should be "Enter ngrep -W byline port 80."