privbind: 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/privbind - from package: privbind

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

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