Solaris SFTP client unknown error after updating to 4.6.0

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Solaris SFTP client unknown error after updating to 4.6.0

Postby hyperion » Mon Dec 14, 2015 9:18 am

Hello,

last week, after updating to version 4.6.0, one client contacted me because he could not connect anymore via SFTP.
After searching the logs, here is what I found:

[02] Fri, 11 Dec 2015 08:56:08 (0002654) Connected from 93.95.239.114 (local address 10.93.2.10, port 22)
[01] Fri, 11 Dec 2015 08:56:09 (0002654) SSH session receive user name:XXXX
[01] Fri, 11 Dec 2015 08:56:09 (0002654) SSH session receive password of user XXXX
[01] Fri, 11 Dec 2015 08:56:09 (0002654) User/password authentication OK.
[01] Fri, 11 Dec 2015 08:56:09 (0002654) SSH authentication completed successfully. Client information:SSH-2.0-Sun_SSH_1.0.1
[14] Fri, 11 Dec 2015 08:56:11 (0002654) ssh_pop_data error: -25
[01] Fri, 11 Dec 2015 08:56:14 (0002654) The user XXXX logged in successfully via SSH.
[01] Fri, 11 Dec 2015 08:56:38 (0002654) handle_timeout close the session
[02] Fri, 11 Dec 2015 08:56:38 (0002654) Closed session,disconnected from 93.95.239.114
[02] Fri, 11 Dec 2015 08:56:38 (0002657) Connected from 93.95.239.114 (local address 10.93.2.10, port 22)
[01] Fri, 11 Dec 2015 08:56:39 (0002657) SSH session receive user name:XXXX
[01] Fri, 11 Dec 2015 08:56:39 (0002657) SSH session receive password of user XXXX
[01] Fri, 11 Dec 2015 08:56:39 (0002657) User/password authentication OK.
[01] Fri, 11 Dec 2015 08:56:40 (0002657) SSH authentication completed successfully. Client information:SSH-2.0-Sun_SSH_1.0.1
[14] Fri, 11 Dec 2015 08:56:42 (0002657) ssh_pop_data error: -25
[01] Fri, 11 Dec 2015 08:56:44 (0002657) The user XXXX logged in successfully via SSH.
[01] Fri, 11 Dec 2015 08:57:08 (0002657) handle_timeout close the session
[02] Fri, 11 Dec 2015 08:57:08 (0002657) Closed session,disconnected from 93.95.239.114

Could you explain the error ssh_pop_data error: -25 ?

From the point of view of our server, the client does connect, but for the client it appears as if the connection was not established.

I ended up reverting to the previous version of WingFTP, so that the client could upload his files.
This client uploads his files daily, so it is quite vexing.
hyperion
 
11
 
Tue Jun 03, 2014 8:18 am

Re: Solaris SFTP client unknown error after updating to 4.6.

Postby FTP » Mon Dec 14, 2015 11:35 am

OK, such issue is caused by the sftp client, according to RFC4254 Section 5.2, the max channel window size is 4294967295 bytes, but it seems that sftp client only supports the max channel window size as 2147483647 bytes, so in fact, its the sftp client issue.

We know some old sftp client software also exists such issue, so we made a small patch on the new version, for being compatible with those old sftp client software, so you just need to download the latest version 4.6.0 again from our website, and test it.
FTP
Site Admin
 
1739
 
Tue Sep 29, 2009 6:09 am

Re: Solaris SFTP client unknown error after updating to 4.6.

Postby hyperion » Tue Dec 15, 2015 8:53 am

Tested with success with the client.

Regards
hyperion
 
11
 
Tue Jun 03, 2014 8:18 am

Re: Solaris SFTP client unknown error after updating to 4.6.

Postby frhey » Fri Jan 08, 2016 2:36 pm

I have downloaded the newest version 4.6.0 at 07/01/2016, also including the "patch for old clients".
But I have the same problem:

SSH authentication completed successfully. Client information:SSH-2.0-http://J2SSH_Maverick_1.4.5__Axway
ssh_pop_data error: -25

Could you help me, please?

Best regards
Frank
frhey
 
7
 
Fri May 27, 2011 12:48 pm

Re: Solaris SFTP client unknown error after updating to 4.6.

Postby FTP » Thu Jan 14, 2016 5:24 am

Yes, such issue was introduced in the version 4.6.0, now we have released the new version 4.6.2, and it has fixed such issue.
FTP
Site Admin
 
1739
 
Tue Sep 29, 2009 6:09 am


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