kproplog: 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/kproplog - from package: krb5-server

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

On Debian possible default full paths are:

/usr/sbin/kproplog - from package: krb5-kdc

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

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