kadmind: 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 CentOS possible default full paths are:

/usr/sbin/kadmind - from package: krb5-server

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/sbin/kadmind - from package: krb5-admin-server

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

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