kshd: 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/kerberos/sbin/kshd - from package: krb5-appl-servers

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

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