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| author | Casey Deccio <casey@deccio.net> | 2016-08-04 06:04:04 +0300 |
|---|---|---|
| committer | Casey Deccio <casey@deccio.net> | 2016-08-04 06:04:04 +0300 |
| commit | 455dc4c1ff649ec1671127289fbbdac43f88a02a (patch) | |
| tree | 5f1e841a8b9f32340e3bcf884f58bd3e239c230d | |
| parent | 82fa263803a659ef751abee295384e1725dd333a (diff) | |
Document use of zone files and "+"
| -rw-r--r-- | doc/man/dnsviz-probe.1 | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/doc/man/dnsviz-probe.1 b/doc/man/dnsviz-probe.1 index 59f278d..ef5ce06 100644 --- a/doc/man/dnsviz-probe.1 +++ b/doc/man/dnsviz-probe.1 @@ -157,7 +157,27 @@ Query authoritative servers, rather than (the default) recursive servers. .IP "-x <domain>:<server>[,<server>...]" Set explicit delegation for the specified domain to one or more servers. -See \fI-s\fP for the syntax used for designating servers. +The default behavior is to identify and query servers authoritative for +ancestors of the specified domain to obtain if the options so dictate. +However, if the domain ends in "+", then queries aren't issued for servers +authoritative for ancestor domains of the domain. For example, with the +following command: + +dnsviz probe -a . -x example.com:ns1.example.com example.com + +at the very least the com servers will be queried for DS records for +example.com. However, if the following is used: + +dnsviz probe -a . -x example.com+:ns1.example.com example.com + +no queries are performed at com servers or above, includg DS records for +example.com. + +See \fI-s\fP for the syntax used for designating servers. However, unlike the +\fI-s\fP option, a zone file may be specified in lieu of a server name and/or +address, in which case an instance of \fInamed(8)\fP is started, the zone is +served from that instance, and queries for the domain are directed to the local +instance of \fInamed(8)\fP serving that zone. This option may be used multiple times on the command line. |