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⟩.

Debian                                           April 23, 2018                             GNUNET-ZONEIMPORT(1)