(The main content is about how to use NetFlow to analyze network traffic. This book is easy to understand, does not involve too many principles, and mainly focuses on application. True readers are network administrators of general small and medium-sized enterprise networks.
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The contents are as follows:
1、 About the author... 4
2、 Why is there this book... 5
3、 Flow analysis principle... 6
（1） Raw flow analysis method... 6
（2） NetFlow analysis method... 6
4、 Flow sampling... 8
（1） Enable NetFlow function on network device... 8
（2） Network device does not support netflow nine
1. deployment method... 9
2. install fprobe eleven
3. start fprobe eleven
4. mirror traffic to fprobe server... 12
5. check whether NetFlow data is received... 12
5、 Deploy server... 13
（1） Hardware requirements... 13
（2） Installing freebsd thirteen
（3） Install nfsen fourteen
1. install apache22 fourteen
2. install php5 fourteen
3. install nfsen fifteen
（4） Install porttracker fifteen
（5） Access nfsen sixteen
6、 Catching thieves Introduction... 18
（1） Understanding network health... 18
（2） What protocol swallows bandwidth... 22
（3） Catch the culprit... 25
7、 Thank you... 30)
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