1IDN2(1)                                                                IDN2(1)
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NAME

6       idn2 - Libidn2 Internationalized Domain Names conversion tool
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SYNOPSIS

9       idn2 [OPTION]... [STRINGS]...
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DESCRIPTION

12       idn2  tool converts DNS domains from UTF-8 to ASCII compatible encoding
13       (ACE) form, as used in the DNS protocol. The  encoding  format  is  the
14       Internationalized Domain Name (IDNA2008/TR46) format.
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16       All input strings are expected to be encoded in the locale charset.
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18       To  process  a  string  that starts with -, for example -foo, use -- to
19       signal the end of parameters, as in idn2 --quiet -- -foo.
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21       Mandatory arguments to long options are  mandatory  for  short  options
22       too.
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24       -h, --help
25              Prints help and exits.
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27       -V, --version
28              Prints version and exits.
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30       -d, --decode
31              Decode an ACE name according to IDNA2008.
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33       -l, --lookup
34              Encode to ACE according to IDNA2008 (the default).
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36       -r, --register
37              Registers a label.
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39       -T, --tr46t
40              Enable TR#46 transitional processing.
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42       -N, --tr46nt
43              Enable TR#46 non-transitional processing (default).
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45       --no-tr46
46              Disable TR#46 processing.
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48       --usestd3asciirules
49              Enable STD3 ASCII rules.
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51       --debug
52              Prints debugging information.
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54       --quiet
55              Silent operation.
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Author

58       Written by Simon Josefsson.
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Reporting bugs

61       Report   bugs   to   the   gitlab   issue   tracker   of   the  project
62       https://gitlab.com/libidn/libidn2/issues.
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66                                   May 2019                            IDN2(1)