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1.了解如何对一个网络目标进行信息收集:
ping www.baidu.com
nmap sp 192.168.0.1-255 查看存活主机
telnet www.baidu.com 3306
Whois www.baidu.com
2.了解特定网络的拓扑结构
3.了解防范DNS区域传送:
区域传送(Zone Transfer)是在多个DNS服务器之间复制区域数据库文件的过程。主要通过拷贝过程完成。
nslookup实现区域传送具体实现:
C:\Documents and Settings\Administrator>nslookup
Default Server: ns.lnpta.net.cn //默认NS
Address: 202.96.64.68 //IP
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> set type=soa 权威
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>> goplayplay.com
Server: ns.lnpta.net.cn
Address: 202.96.64.68
Non-authoritative answer:
goplayplay.com
primary name server = feed19.nameservers.net //DNS
responsible mail addr = hostmaster.rapidsite.net
serial = 2010071223
refresh = 7200 (2 hours)
retry = 3600 (1 hour)
expire = 604800 (7 days)
default TTL = 86400 (1 day)
goplayplay.com nameserver = ns19a.nameservers.net
goplayplay.com nameserver = ns19b.nameservers.net
ns19a.nameservers.net internet address = 161.58.75.72
ns19a.nameservers.net internet address = 161.58.134.98
ns19b.nameservers.net internet address = 198.170.241.2
ns19b.nameservers.net internet address = 161.58.134.114
=======================下面进行区域传送,将自己的DNS设置成对方的=======================
> server feed19.nameservers.net
Default Server: feed19.nameservers.net //已经将DNS设置成为对方的
Address: 161.58.134.130 //IP
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>ls -d goplayplay.com //下面显示详细信息,即成功进行了区域传送,可以显示出所有的DNS记录 |
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