filter_hssp: 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/bin/filter_hssp - from package: profphd-utils

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

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