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  • 作者:大卫·巴尔
  • 许可:艺术


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 '.'


-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.



[email protected]:~# dnswalk example.com.
Checking example.com.
[email protected]:~# dnswalk -r -d example.com.
Checking example.com.