gnunet-download - a command line interface for downloading files from GNUnet

gnunet-download [OPTIONS] -- GNUNET_URI

Download files from GNUnet.

-a LEVEL, --anonymity=LEVEL

set desired level of receiver anonymity. Default is 1.

-c FILENAME, --config=FILENAME

use config file (defaults: ~/.gnunet/gnunet.conf)

-h, --help

print help page

-L LOGLEVEL, --loglevel=LOGLEVEL

change the loglevel. Possible values for LOGLEVEL are NOTHING, FATAL, ERROR, FAILURE, WARNING, MESSAGE, INFO, DEBUG, CRON and EVERYTHING.

-o FILENAME, --output=FILENAME

write the file to FILENAME. Otherwise gnunet-download constructs a temporary ID from the URI of the file. The final filename is constructed based on meta-data extracted using libextractor (if available).

-R, --recursive

download directories recursively and in parallel

-v, --version

print the version number

-V, --verbose

print progress information

The GNUNET_URI is typically obtained from gnunet-search. gnunet-gtk can also be used instead of gnunet-download. If youever have to abort a download, you can at any time continue it by re-issuing gnunet-download with the same filename. In that case GNUnet will not download blocks again that are already present. GNUnets file-encoding will ensure file integrity, even if the existing file was not downloaded from GNUnet in the first place. Temporary information will be stored in FILENAME.X files until the download is completed. These files are used only if a download is resumed later. If you abort a download for good, you should remember to delete these files.

The -a option can be used to specify additional anonymity constraints. If set to 0, GNUnet will try to download the file as fast as possible without any additional slowdown by the anonymity code. Note that you will still have a fair degree of anonymity depending on the current network load and the power of the adversary. The download is still unlikely to be terribly fast since the sender may have requested sender-anonymity and since in addition to that, GNUnet will still do the anonymous routing.

This option can be used to limit requests further than that. In particular, you can require GNUnet to receive certain amounts of traffic from other peers before sending your queries. This way, you can gain very high levels of anonymity - at the expense of much more traffic and much higher latency. So set it only if you really believe you need it.

The definition of ANONYMITY-RECEIVE is the following: If the value v is < 1000, it means that if GNUnet routes n bytes of messages from foreign peers, it may originate n/v bytes of queries in the same time-period. The time-period is twice the average delay that GNUnet deferrs forwarded queries. If the value v is >= 1000, it means that if GNUnet routes n bytes of QUERIES from at least (v % 1000) peers, it may originate n/v/1000 bytes of queries in the same time-period.

The default is 0 and this should be fine for most users. Also notice that if you choose values above 1000, you may end up having no throughput at all, especially if many of your fellow GNUnet-peers do the same.

~/.gnunet/gnunet.conf

GNUnet configuration file

Report bugs by using mantis <https://gnunet.org/mantis/> or by sending electronic mail to <gnunet-developers@gnu.org>

gnunet-gtk(1), gnunet-insert(1), gnunet-gtk(1), gnunet-search(1), gnunet-download(1), gnunet.conf(5), gnunetd(1)