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Good article on tcpdump
Good article from Linux journal on tcpdump
Linux Journal | The Original Magazine of the Linux Community
And packet sniffing basics
http://m.linuxjournal.com/content/packet-sniffing-basics
Linux Journal | The Original Magazine of the Linux Community
And packet sniffing basics
http://m.linuxjournal.com/content/packet-sniffing-basics
Goals CCNA by dec 2013, CCNP by end of 2014