(This is a set of sniffer tutorials from the 51cto website. In order to support the 51cto website, don't forget to comment after downloading. --------------- A preface SNIFF is really an old topic, it is nothing new to use SNIFF to obtain sensitive information on the Internet, and there are many successful cases, then , What is SNIFF after all? SNIFF is a sniffer, that is, an eavesdropper. SNIFF works quietly at the bottom of the network, and records your secrets comprehensively. Have you seen "Public Enemy" played by Will Smith? SNIFF is like a delicate bug in it, so you can't guard against it. SNIFF can be software or hardware. Since it is software, it must be divided into different modes, such as under WINDOWS, under UNXI, etc. The hardware SNIFF is called a network analyzer. Regardless of the hardware and software, there is only one solution, that is, the acquisition Various information transmitted over the network. This article is just an introduction to SNIFF of the software. When you are sitting comfortably at home, enjoying the convenience brought to you by the Internet, collecting your EMAIL, and purchasing your favorite items, do you think about the letter from your brother to you, and your credit card account becomes One after another information packets are continuously transmitted on the network. Have you ever made these packets flow into other people's machines through the network? Your worries are not unreasonable, because SNIFF can make your worries real risks of. It's as if someone was hiding and peeking after you died. . .)
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