Pure-ftpd: Force Passive IP only for WAN

I followed your Pure-ftpd tutorial: Force Passive IP only for WAN but I'm stuck at the end:
https://www.faqforge.com/linux/cont...ange-in-pure-ftpd-on-debian-and-ubuntu-linux/
Set Passive IP in PureFTPD
Setting a passive IP in FTP might be necessary when your server is located behind a NAT router. You will get an error like "Error: Server returned unroutable private IP address in PASV reply" from your FTP client in such a case.
To set a passive IP address, run this command:

echo "1.2.3.4" > /etc/pure-ftpd/conf/ForcePassiveIP

Replace 1.2.3.4 with the External IP address that clients shall use to connect to the FTP server. Then restart pureFTPD:

When you talk about External IP address that clients should use to connect, what IP are you talking about? your server's IP? Please be a little clearer.

 

My system is debian 1 Ispconfig 3
After this config i can connect fileZilla in local but not remotly here is the message error display by filezilla
Statut : Connexion TLS établie.
Commande : USER myanamexxx
Réponse : 331 User myanamexxx OK. Password required
Commande : PASS **********
Réponse : 530 Login authentication failed
Erreur : Erreur critique : Impossible d’établir une connexion au serveur
Where is the problem ?

 

I found the solution ! the The password is wrong !