YKCLIENT(1) User Commands YKCLIENT(1)

ykclient - YubiCloud One-Time-Password Validation Client

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.

Display this help screen
Display version information
Print debugging information
Validation service URL, for example, "https://api.yubico.com/wsapi/2.0/verify"
Path to directory containing Certificate Authoritity, e.g., "/usr/local/etc/CERTS"
Path to a file holding one or more certificated to verify the peer with
API key for HMAC validation of request/response
Connect to validation service through a proxy, e.g., "socks5h://user:pass@127.0.0.1:1080"

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.

March 2024 ykclient 2.15