dnswalk包装说明
dnswalk是一个DNS调试器。它执行指定的域的区域传输，并且检查数据库以多种方式的内部一致性，以及精度。
资料来源：http://sourceforge.net/projects/dnswalk/
dnswalk首页 | 卡利dnswalk回购
- 作者：大卫·巴尔
- 许可：艺术
包含在dnswalk软件包工具
dnswalk - 使用域名服务器查询检查DNS区域信息
[email protected]:~# dnswalk --help
Usage: dnswalk [-OPTIONS [-MORE_OPTIONS]] [--] [PROGRAM_ARG1 ...]
The following single-character options are accepted:
With arguments: -D
Boolean (without arguments): -r -f -i -a -d -m -F -l
Options may be merged together. -- stops processing of options.
Space is not required between options and their arguments.
[Now continuing due to backward compatibility and excessive paranoia.
See ``perldoc Getopt::Std'' about $Getopt::Std::STANDARD_HELP_VERSION.]
Usage: dnswalk domain
domain MUST end with a '.'dnswalk选项
-r Recursively descend sub-domains of the specified domain.
-a Turn on warning of duplicate A records.
-d Print debugging and 'status' information to stderr. (Use only if redirecting stdout).
-m Perform checks only if the zone has been modified since the previous run.
-F Perform "fascist" checking. When checking an A record, compare the PTR name for each IP address with the forward name and report mismatches.
-i Suppress check for invalid characters in a domain name.
-l Perform "lame delegation" checking. For every NS record, check to see that the listed host is indeed returning authoritative answers for this domain.dnswalk用法示例
尝试获取目标域DNS区域信息（example.com。）：
[email protected]:~# dnswalk example.com.
Checking example.com.[email protected]:~# dnswalk -r -d example.com.
Checking example.com.