racoon: 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 CentOS possible default full paths are:

/usr/sbin/racoon - from package: ipsec-tools

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/sbin/racoon - from package: racoon

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