ietd: command not found

Have You tried accessing the binary with the full path?

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/sbin/ietd - from package: iscsitarget

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