ykclient (1)

ykclient [\,OPTION\/]... \,CLIENTID YUBIKEYOTP\/

Validate the YUBIKEYOTP one-time-password against the YubiCloud using CLIENTID as the client identifier.

Mandatory arguments to long options are mandatory for short options too.

--help

Display this help screen

--version

Display version information

--debug

Print debugging information

--url URL

Validation service URL, for example, "http://api.yubico.com/wsapi/verify"

--ca CADIR

Path to directory containing Certificate Authoritity, e.g., "/usr/local/etc/CERTS"

--apikey Key

API key for HMAC validation of request/response

Exit status is 0 on success, 1 if there is a hard failure, 2 if the OTP was replayed, 3 for other soft OTP-related failures.

Report bugs at <https://github.com/Yubico/yubico-c-client>.