NAME

     gnunet-zoneimport — import DNS zone into GNS zone

SYNOPSIS

     gnunet-zoneimport [-c FILENAME | --config=FILENAME] [-h | --help]
                       [-m RELATIVETIME | --minimum-expiration=RELATIVETIME]
                       [-s MAPSIZE | --size=MAPSIZE] ⟨IP⟩

DESCRIPTION

     gnunet-zoneimport reads a list of domain names (FQDN) from stdin and issues DNS queries for
     each of the domain names given.  It then checks if a local ego with a name matching the
     domain exists.  Specifically, if the domain name is "example.fr", it will check if an ego
     "fr" exists, while for a domain "example.com.fr" it will look for an ego called "com.fr").
     If so, it will convert the DNS records into GNS records (in particular converting NS records
     and glue records to GNS2DNS records) and add them to the namestore under the label
     ("example" in the examples above).

     The arguments given to gnunet-zoneimport is a list of IP addresses of DNS servers to query.

     gnunet-zoneimport will usually never terminate: it will check when DNS records expire, and
     re-issue requests when the old DNS records have expired so that GNS always has the latest
     data.

     gnunet-zoneimport will issue many DNS queries in parallel, but is rate-limited in various
     ways, so most DNS servers should easily handle the load.  gnunet-zoneimport will perform a
     limited number of retries if queries fail.

     gnunet-zoneimport operates incrementally.  It will check if the namestore already has (non-
     expired) records stored for a given name in the respective zone and not issue those requests
     again.  Thus, it is fine to restart gnunet-zoneimport whenever the list of domain names
     changes.

     Finally, gnunet-zoneimport keeps information for each domain name in memory.  This consumes
     about 200 bytes per domain name, or 1 GB for 5 million labels.

     -c FILENAME | --config=FILENAME
             Use the configuration file FILENAME.

     -h | --help
             Print short help on options.

     -m RELATIVETIME | --minimum-expiration=RELATIVETIME
             Ensure that imported DNS records never have an expiration time that is less than
             RELATIVETIME into the future.  RELATIVETIME is a time given like "1 week" or "1 h".
             If DNS returns records with a shorter lifetime, gnunet-zoneimport will simply bump
             the lifetime to the specified value (relative to the time of the import).  Default
             is zero.

     -s MAPSIZE | --size=MAPSIZE
             Specifies the size (in number of entries) to use for the main hash map.  The value
             provided should be at least twice the number of domain names that will be given to
             the tool.  This option is required for very large zones where the number of records
             encountered is too large for the automatic growth mechanism to work (that one is
             limited to at most 16 MB allocations for security reasons).  Do not worry about this
             unless you are importing millions of domain names from a zone.

     ⟨IP⟩    IP Is the list of IPs given.

EXAMPLES

     Typical invocation would be:

           $ gnunet-zoneimport 1.2.3.4 < names.txt

SEE ALSO

     gnunet-gns(1), gnunet-namestore(1)

     The full documentation for gnunet is maintained as a Texinfo manual.  If the info(1) and
     gnunet programs are properly installed at your site, the command

           info gnunet

     should give you access to the complete handbook,

           info gnunet-c-tutorial

     will give you access to a tutorial for developers.

     Depending on your installation, this information is also available in gnunet(7) and
     gnunet-c-tutorial(7).

BUGS

     Report bugs by using https://bugs.gnunet.org or by sending electronic mail to
     ⟨gnunet-developers@gnu.org⟩.