ipkungfu: 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/sbin/ipkungfu - from package: ipkungfu

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

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