dane: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/dane - from package: sshfp

You may install the required package with command apt-get install {package}

Error in other languages:
dane: bevel nie gevind nie
dane: comandă negăsită
dane: comando não encontrado
dane: commande introuvable
dane: command not found
dane: käsku ei ole
dane: không tìm thấy lệnh
dane: komanda nerasta
dane: Kommando nicht gefunden.
dane: kommandot finns inte
dane: komut yok
dane: nie znaleziono polecenia
dane: níor aimsíodh an t-ordú
dane: no se encontró la orden
dane: no s'ha trobat l'ordre
dane: opdracht niet gevonden
dane: parancs nem található
dane: perintah tidak ditemukan
dane: príkaz nenájdený
dane: příkaz nenalezen
dane: команда не найдена
dane: командата не е открита
dane: 命令找不到
dane: コマンドが見つかりません