dnstracer包装说明

dnstracer决定了一个给定的域名服务器（DNS）从一个给定的主机名获得信息，并遵循DNS服务器链回权威的答案。

资料来源：http://www.mavetju.org/unix/general.php
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  • 作者：埃德温Groothuis
  • 许可：BSD

包含在dnstracer软件包工具

dnstracer - 跟踪DNS查询的源
[email protected]:~# dnstracer
DNSTRACER version 1.8.1 - (c) Edwin Groothuis - http://www.mavetju.org
Usage: dnstracer [options] [host]
    -c: disable local caching, default enabled
    -C: enable negative caching, default disabled
    -o: enable overview of received answers, default disabled
    -q <querytype>: query-type to use for the DNS requests, default A
    -r <retries>: amount of retries for DNS requests, default 3
    -s <server>: use this server for the initial request, default localhost
                 If . is specified, A.ROOT-SERVERS.NET will be used.
    -t <maximum timeout>: Limit time to wait per try
    -v: verbose
    -S <ip address>: use this source address.
    -4: don't query IPv6 servers

dnstracer用法示例

扫描域（example.com），重试多达3次（-r 3），并显示详细输出（-v）：

[email protected]:~# dnstracer -r 3 -v example.com
Tracing to example.com[a] via 192.168.1.1, maximum of 3 retries
192.168.1.1 (192.168.1.1) IP HEADER
- Destination address:  192.168.1.1
DNS HEADER (send)