cfexecd: 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/lib/debug/usr/sbin/cfexecd - from package: cfengine2-dbg
/usr/sbin/cfexecd - from package: cfengine2

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