dnsd: 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/lib/diet/bin/dnsd - from package: dietlibc-dev

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

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