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Windows
该死的 KB928366
Installing and Configuring SNMP Service on Windows 2000
TCP三次握手及原理 zz
LNS防火墙中级使用指南zz
详解：IP的分类、寻址规则及子网掩码zz
L3 switch
WSUS,Microsoft Windows Server Update Services
Happy every day!
Good good study, day day up!