idn2 - Man Page
Libidn2 Internationalized Domain Names conversion tool
Synopsis
idn2 [OPTION]... [STRINGS]...
Description
idn2 tool converts DNS domains from UTF-8 to ASCII compatible encoding (ACE) form, as used in the DNS protocol. The encoding format is the Internationalized Domain Name (IDNA2008/TR46) format.
All input strings are expected to be encoded in the locale charset.
To process a string that starts with -, for example -foo, use -- to signal the end of parameters, as in idn2 --quiet -- -foo.
Mandatory arguments to long options are mandatory for short options too.
- -h, --help
Prints help and exits.
- -V, --version
Prints version and exits.
- -d, --decode
Decode an ACE name according to IDNA2008.
- -l, --lookup
Encode to ACE according to IDNA2008 (the default).
- -r, --register
Registers a label.
- -T, --tr46t
Enable TR#46 transitional processing.
- -N, --tr46nt
Enable TR#46 non-transitional processing (default).
- --no-tr46
Disable TR#46 processing.
- --usestd3asciirules
Enable STD3 ASCII rules.
- --debug
Prints debugging information.
- --quiet
Silent operation.
Author
Written by Simon Josefsson.
Reporting bugs
Report bugs to the gitlab issue tracker of the project https://gitlab.com/libidn/libidn2/issues.