
2007 http://netsecurity.ynu.edu.cn
2
2 IE http://vod.ynu.edu.cn
3 Wireshark Wireshark
4 Wireshark DNS
Filter udp.port==53 Enter DNS
.2 7 P251
DNS
.2 Wireshark ASCII
F ASCII ASCII 003F 65 e 0040
64 d 0041 75 u . 02
. 03 16
.2 DNS
5 DNS
.2 Statistics Flow Graph DNS
vod.ynu.edu.cn .3 7 P259
.3 DNS
202.203.208.33 DNS 0.000468
3 Time 0.000
6
.2
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