FTP in passive mode : EHOSTUNREACH - No route to host
Solution 1
Had the same issue with PASV and PORT and Filezilla and vsftpd. The connection succeeds so it doesn't fall back on Active mode in Filezilla.
Using the default configuration on both vsftpd, Filezilla and opening port 21/TCP, you need to switch to Active mode for it to work.
Solution 2
Well there is one difference between those two, on command line you use PORT
and Filezilla uses PASV
changing the direction of the connection used. PORT
means your computer opens a port and waits for connection from the server. PASV
means the server opens a port and waits for the client to connect.
Is it possible that the server has a firewall blocking the incoming connections, perhaps the firewall is stupid and cannot auto-detect the PASV
result and allow the corresponding port.
Perhaps it has worked before because the server chose ports that were within a range allowed by the firewall.
Arnaud Denoyelle
Updated on July 09, 2022Comments
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Arnaud Denoyelle almost 2 years
I have a FTP server which was running for about a month without any problem.
Today, I cannot connect to it with filezilla, I get this message :
The data connection could not be established: EHOSTUNREACH - No route to host
I searched on Google/SO and found that it might be a TLS problem. However, I can connect to the FTP server using the console :
$ ftp ftp> open mymachine.mycompany.com Connected to mymachine.mycompany.com 220 Bienvenue sur le serveur FTP mymachine.mycompany.com. Name (mymachine.mycompany.com:adenoyelle): mylogin 331 Please specify the password. Password: 230 Login successful. Remote system type is UNIX. Using binary mode to transfer files. ftp> ls 200 PORT command successful. Consider using PASV. 150 Here comes the directory listing. drwxr-xr-x 2 502 502 20480 Jun 05 11:51 Ga drwxr-xr-x 7 502 502 4096 Apr 21 15:41 Bu drwxr-xr-x 7 502 502 4096 Jun 03 16:26 Zo 226 Directory send OK. ftp>
What can be the reason for that?
EDIT : I found that enabling the 'Active' mode solves the problem in Filezilla but I need it to work in passive mode
EDIT : Here is the full trace on Filezilla's side :
Status: Connecting to 10.196.***.*** Status: Connection established, waiting for welcome message... Response: 220 Bienvenue sur le serveur FTP mymachine.mycompany.com. Command: USER mylogin Response: 331 Please specify the password. Command: PASS ****** Response: 230 Login successful. Command: SYST Response: 215 UNIX Type: L8 Command: FEAT Response: 211-Features: Response: EPRT Response: EPSV Response: MDTM Response: PASV Response: REST STREAM Response: SIZE Response: TVFS Response: UTF8 Response: 211 End Command: OPTS UTF8 ON Response: 200 Always in UTF8 mode. Status: Connected Status: Retrieving directory listing... Command: PWD Response: 257 "/home/mylogin" Command: TYPE I Response: 200 Switching to Binary mode. Command: PASV Response: 227 Entering Passive Mode (10,196,165,224,189,253). Command: LIST Error: The data connection could not be established: EHOSTUNREACH - No route to host