Sometime, the ftp freeze, because a transfer stop due to the error : "425 Can't open data connection.", but this error doesn't always happens, so I guess my firewalls are good. my NAT are open and the server work perfectly.
Just, it happens, the "425 Can't open data connection." who freeze my ftp.
Here a log, I hope it will help you to understand what is my problem.
Then, it freeze the ftp who getting files, all transfers are from the same ftp on the same computer. How can it got an 425 error sometimes and not always ? The firewall doesn't changed at all.(169257) 03/01/2019 19:31:38 - (not logged in) (192.168.1.1)> Connected, sending welcome message...
(169257) 03/01/2019 19:31:38 - (not logged in) (192.168.1.1)> 220 Bienvenue sur le serveur de l'EXIA.
(169257) 03/01/2019 19:31:38 - (not logged in) (192.168.1.1)> OPTS UTF8 ON
(169257) 03/01/2019 19:31:38 - (not logged in) (192.168.1.1)> 530 Please log in with USER and PASS first.
(169257) 03/01/2019 19:31:38 - (not logged in) (192.168.1.1)> USER megaetchat
(169257) 03/01/2019 19:31:38 - (not logged in) (192.168.1.1)> 331 Password required for megaetchat
(169257) 03/01/2019 19:31:38 - (not logged in) (192.168.1.1)> PASS ***********
(169257) 03/01/2019 19:31:38 - megaetchat (192.168.1.1)> 230 Logged on
(169257) 03/01/2019 19:31:38 - megaetchat (192.168.1.1)> PORT 192,168,1,1,195,121
(169257) 03/01/2019 19:31:38 - megaetchat (192.168.1.1)> 200 Port command successful
(169257) 03/01/2019 19:31:38 - megaetchat (192.168.1.1)> RETR VarDiscussions/Salon1/wait2825928862695.exia
(169257) 03/01/2019 19:31:38 - megaetchat (192.168.1.1)> 150 Opening data channel for file transfer.
(169258) 03/01/2019 19:31:38 - (not logged in) (192.168.1.1)> Connected, sending welcome message...
(169258) 03/01/2019 19:31:38 - (not logged in) (192.168.1.1)> 220 Bienvenue sur le serveur de l'EXIA.
(169258) 03/01/2019 19:31:38 - (not logged in) (192.168.1.1)> USER appliget
(169258) 03/01/2019 19:31:38 - (not logged in) (192.168.1.1)> 331 Password required for appliget
(169258) 03/01/2019 19:31:38 - (not logged in) (192.168.1.1)> PASS ***********
(169258) 03/01/2019 19:31:38 - appliget (192.168.1.1)> 230 Logged on
(169258) 03/01/2019 19:31:38 - appliget (192.168.1.1)> PORT 192,168,1,1,195,229
(169258) 03/01/2019 19:31:38 - appliget (192.168.1.1)> 200 Port command successful
(169258) 03/01/2019 19:31:38 - appliget (192.168.1.1)> RETR Applis/csend.exe
(169258) 03/01/2019 19:31:38 - appliget (192.168.1.1)> 150 Opening data channel for file transfer.
(169257) 03/01/2019 19:31:38 - megaetchat (192.168.1.1)> 226 Transfer OK
(169258) 03/01/2019 19:31:38 - appliget (192.168.1.1)> 226 Transfer OK
(169257) 03/01/2019 19:31:38 - megaetchat (192.168.1.1)> QUIT
(169257) 03/01/2019 19:31:38 - megaetchat (192.168.1.1)> 221 Goodbye
(169257) 03/01/2019 19:31:38 - megaetchat (192.168.1.1)> disconnected.
(169258) 03/01/2019 19:31:38 - appliget (192.168.1.1)> QUIT
(169258) 03/01/2019 19:31:38 - appliget (192.168.1.1)> 221 Goodbye
(169258) 03/01/2019 19:31:38 - appliget (192.168.1.1)> disconnected.
(169259) 03/01/2019 19:31:38 - (not logged in) (192.168.1.1)> Connected, sending welcome message...
(169259) 03/01/2019 19:31:38 - (not logged in) (192.168.1.1)> 220 Bienvenue sur le serveur de l'EXIA.
(169259) 03/01/2019 19:31:38 - (not logged in) (192.168.1.1)> USER appliget
(169259) 03/01/2019 19:31:38 - (not logged in) (192.168.1.1)> 331 Password required for appliget
(169259) 03/01/2019 19:31:38 - (not logged in) (192.168.1.1)> PASS ***********
(169259) 03/01/2019 19:31:38 - appliget (192.168.1.1)> 230 Logged on
(169259) 03/01/2019 19:31:38 - appliget (192.168.1.1)> PORT 192,168,1,1,195,231
(169259) 03/01/2019 19:31:38 - appliget (192.168.1.1)> 200 Port command successful
(169259) 03/01/2019 19:31:38 - appliget (192.168.1.1)> RETR Applis/unzip.exe
(169259) 03/01/2019 19:31:38 - appliget (192.168.1.1)> 150 Opening data channel for file transfer.
(169259) 03/01/2019 19:31:39 - appliget (192.168.1.1)> 226 Transfer OK
(169259) 03/01/2019 19:31:39 - appliget (192.168.1.1)> QUIT
(169259) 03/01/2019 19:31:39 - appliget (192.168.1.1)> 221 Goodbye
(169259) 03/01/2019 19:31:39 - appliget (192.168.1.1)> disconnected.
(169260) 03/01/2019 19:31:39 - (not logged in) (192.168.1.1)> Connected, sending welcome message...
(169260) 03/01/2019 19:31:39 - (not logged in) (192.168.1.1)> 220 Bienvenue sur le serveur de l'EXIA.
(169260) 03/01/2019 19:31:39 - (not logged in) (192.168.1.1)> OPTS UTF8 ON
(169260) 03/01/2019 19:31:39 - (not logged in) (192.168.1.1)> 530 Please log in with USER and PASS first.
(169260) 03/01/2019 19:31:39 - (not logged in) (192.168.1.1)> USER megaetchat
(169260) 03/01/2019 19:31:39 - (not logged in) (192.168.1.1)> 331 Password required for megaetchat
(169261) 03/01/2019 19:31:39 - (not logged in) (192.168.1.1)> Connected, sending welcome message...
(169261) 03/01/2019 19:31:39 - (not logged in) (192.168.1.1)> 220 Bienvenue sur le serveur de l'EXIA.
(169260) 03/01/2019 19:31:39 - (not logged in) (192.168.1.1)> PASS ***********
(169260) 03/01/2019 19:31:39 - megaetchat (192.168.1.1)> 230 Logged on
(169261) 03/01/2019 19:31:39 - (not logged in) (192.168.1.1)> USER appliget
(169261) 03/01/2019 19:31:39 - (not logged in) (192.168.1.1)> 331 Password required for appliget
(169261) 03/01/2019 19:31:39 - (not logged in) (192.168.1.1)> PASS ***********
(169261) 03/01/2019 19:31:39 - appliget (192.168.1.1)> 230 Logged on
(169261) 03/01/2019 19:31:39 - appliget (192.168.1.1)> PORT 192,168,1,1,195,233
(169261) 03/01/2019 19:31:39 - appliget (192.168.1.1)> 200 Port command successful
(169261) 03/01/2019 19:31:39 - appliget (192.168.1.1)> RETR Applis/zip.exe
(169261) 03/01/2019 19:31:39 - appliget (192.168.1.1)> 150 Opening data channel for file transfer.
(169260) 03/01/2019 19:31:39 - megaetchat (192.168.1.1)> PORT 192,168,1,1,195,123
(169260) 03/01/2019 19:31:39 - megaetchat (192.168.1.1)> 200 Port command successful
(169260) 03/01/2019 19:31:39 - megaetchat (192.168.1.1)> RETR VarDiscussions/Salon1/wait2825928862695.exia
(169260) 03/01/2019 19:31:39 - megaetchat (192.168.1.1)> 150 Opening data channel for file transfer.
(169260) 03/01/2019 19:31:39 - megaetchat (192.168.1.1)> 226 Transfer OK
(169260) 03/01/2019 19:31:39 - megaetchat (192.168.1.1)> QUIT
(169260) 03/01/2019 19:31:39 - megaetchat (192.168.1.1)> 221 Goodbye
(169260) 03/01/2019 19:31:39 - megaetchat (192.168.1.1)> disconnected.
(169261) 03/01/2019 19:31:39 - appliget (192.168.1.1)> 226 Transfer OK
(169261) 03/01/2019 19:31:39 - appliget (192.168.1.1)> QUIT
(169261) 03/01/2019 19:31:39 - appliget (192.168.1.1)> 221 Goodbye
(169261) 03/01/2019 19:31:39 - appliget (192.168.1.1)> disconnected.
(169262) 03/01/2019 19:31:39 - (not logged in) (192.168.1.1)> Connected, sending welcome message...
(169262) 03/01/2019 19:31:39 - (not logged in) (192.168.1.1)> 220 Bienvenue sur le serveur de l'EXIA.
(169262) 03/01/2019 19:31:39 - (not logged in) (192.168.1.1)> OPTS UTF8 ON
(169262) 03/01/2019 19:31:39 - (not logged in) (192.168.1.1)> 530 Please log in with USER and PASS first.
(169262) 03/01/2019 19:31:39 - (not logged in) (192.168.1.1)> USER megaetchat
(169262) 03/01/2019 19:31:39 - (not logged in) (192.168.1.1)> 331 Password required for megaetchat
(169262) 03/01/2019 19:31:39 - (not logged in) (192.168.1.1)> PASS ***********
(169262) 03/01/2019 19:31:39 - megaetchat (192.168.1.1)> 230 Logged on
(169262) 03/01/2019 19:31:39 - megaetchat (192.168.1.1)> PORT 192,168,1,1,195,125
(169262) 03/01/2019 19:31:39 - megaetchat (192.168.1.1)> 200 Port command successful
(169262) 03/01/2019 19:31:39 - megaetchat (192.168.1.1)> RETR VarDiscussions/Salon1/wait2825928862695.exia
(169262) 03/01/2019 19:31:39 - megaetchat (192.168.1.1)> 150 Opening data channel for file transfer.
(169262) 03/01/2019 19:31:39 - megaetchat (192.168.1.1)> 425 Can't open data connection.
Thx for reply & for helping me.
If you need more details, ask me please.
- Reizod