You can get the CLIENT_ID parameter value at pathToMappingFile is the path to the mapping file (/var/yubico_passwd).ĥ – Open /etc/ssh/sshd_config and set the following parameters: PubkeyAuthentication noĦ – Then restart the server using the ssh command: sudo service ssh restartįrom now on, during authorization, the user should be asked for the YubiKey code. The file should contain a single record: :Ĥ – Open /etc/pam.d/sshd and add to the very beginning: auth required pam_yubico.so id=CLIENT_ID debug authfile=pathToMappingFile You can also plug it into USB-A ports on your PC or other devices. Industry-first dual connector security key with support for USB-C and Lightning. with 3 Yubikey tokens: pam_user:cccccchvjdse:cccccchvtbdr:ccccccundggrģ – Create a mapping file, e.g. For Android users, theres the NFC-compatible YubiKey Neo for 50 that lets you access your online services on your phone. YubiKey 5Ci is the latest addition to the YubiKey 5 series. If you have several Yubikey tokens for one user, add YubiKey token ID of the other devices separated with :, e.g. Where username is the name of user who is going to authorize with YubiKey, and YubiKey token ID is a user's YubiKey token identification, e.g.: pam_user:cccccchvjdse 2 – Open /etc/passwd and add to the end of it: :

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