ulogd: 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/ulogd - from package: ulogd2

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

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