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PrefaceA block of code will be set as follows:flushadd check-stateadd allow tcp from me to any setup keep-stateadd allow tcp from 192.168.1.0/24 to me keep-stateadd allow ip from 10.1.1.0/24 to meadd allow ip from any to anyWhen we wish to draw your attention to a particular part of a code block, therelevant lines or items will be made bold:/dev/ad0s1a on / (ufs, local, noatime, soft-updates)devfs on /dev (devfs, local)procfs on /proc (procfs, local)/dev/md1 on /tmp (ufs, local)/dev/md2 on /mnt (ufs, local, read-only)Any command-line input and output is written as follows:# dd if=/dev/zero of=/swap0 bs=1024k count=256New terms and important words are introduced in a bold-type font. Words that yousee on the screen, in menus or dialog boxes for example, appear in our text like this:"Note that either the userquota or the groupquota can be specified for each partitionin the Options column.".Important notes appear in a box like this.Tips and tricks appear like this.Reader FeedbackFeedback from our readers is always welcome. Let us know what you think aboutthis book, what you liked or may have disliked. Reader feedback is important for usto develop titles that you really get the most out of.To send us general feedback, simply drop an email to feedback@packtpub.com,making sure to mention the book title in the subject of your message.[ ]