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Problem with SFTP Command line, "@" in username.


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# 8  
Quote:
Originally Posted by BG_JrAdmin
I tried it with both regular and double quotes.

Code:
# sftp -o User='myuser@myorg.com' sftpsite.com
Property of #Company# Systems. Unauthorized use prohibited.
Received disconnect from # SFTP Server IP ADDRESS # port 22:11: Application error
Authentication failed.
Couldn't read packet: Connection reset by peer

this is not what I suggested - loose the space after -o
Also try it withOUT quotes.
man sftp
This User Gave Thanks to vgersh99 For This Post:
# 9  
Look for the port entry in the configuration files...
# 11  
I find this discussion interesting. I thought I was familiar with email addresses being used as userid's on sFTP and therefore, by default, containing the @ character. I'm sure that I remember this from years ago.

Searching the web these pages seem relevant:

shell - command line sftp: email address as username - Stack Overflow

ssh - How do I sftp to a server if the username contains @ symbol - Unix & Linux Stack Exchange

From your post#7 it seems to me that, since the error mentions 'port' (for the first time????) that the server may not be listening on default port 22 and, if so, a port number would need to be included on your command line. Perhaps talk to the remote server's sysadmin and confirm which port number sFTP is on.

You have a lot of skilled subscribers to this thread now so I'll be interested to see how this develops.

Good luck.

Last edited by hicksd8; 04-28-2018 at 05:42 AM..
# 12  
Quote:
Originally Posted by Corona688
This is what's valid to put in a UNIX username:

Code:
[a-z_][a-z0-9_-]*[$]?

No @.
This is correct, but this is not a UNIX username: it rather is an identification similar to what in past times was used in (anonymous) ftp where one entered his own email address. This probably is a chrooted anonymous sftp-server thread-o/p is connecting to.

I hope this helps.

bakunin
# 13  
I've opened a case with Red Hat support. I will post the results.

---------- Post updated at 08:06 PM ---------- Previous update was at 07:25 PM ----------

@vgersh99

Code:
[root@MyServer ~]# sftp -oUser='myemail@myorg.com' sftpsite.com
Property of #Company# Systems. Unauthorized use prohibited.
Received disconnect from # IP ADDRESS # port 22:11: Application error
Authentication failed.
Couldn't read packet: Connection reset by peer


[root@MyServer ~]# sftp -oUser=myemail@myorg.com sftpsite.com
Property of #Company# Systems. Unauthorized use prohibited.
Received disconnect from #IP ADDRESS# port 22:11: Application error
Authentication failed.
Couldn't read packet: Connection reset by peer
[root@MyServer ~]#

---------- Post updated at 08:13 PM ---------- Previous update was at 08:06 PM ----------

Code:
[root@Myserver ~]# bash -version
GNU bash, version 4.2.46(2)-release (x86_64-redhat-linux-gnu)
Copyright (C) 2011 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>

This is free software; you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
[root@Myserver ~]# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 7.4 (Maipo)
[roott@MyServer ~]#

---------- Post updated at 08:23 PM ---------- Previous update was at 08:13 PM ----------

It seems they are running proFTPD:

This is from my debug output:

Code:
debug1: Remote protocol version 2.0, remote software version mod_sftp/0.9.8
debug1: no match: mod_sftp/0.9.8
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to sftpsite.com

---------- Post updated at 08:33 PM ---------- Previous update was at 08:23 PM ----------

Trying to escape the @

Code:
[root@MyServer ~]# sftp -oUser='myemail\@myorg.com' sftpsite.com
Property of #Company# Systems. Unauthorized use prohibited.
myemail\@myorg.com@sftpsite.com password:

---------- Post updated at 08:35 PM ---------- Previous update was at 08:33 PM ----------

Code:
[root@MyServer ~]# sftp -oUser=myemail\@myorg.com sftpsite.com
Property of #Company# Systems. Unauthorized use prohibited.
Received disconnect from #IP Address# port 22:11: Application error
Authentication failed.
Couldn't read packet: Connection reset by peer
[root@MyServer ~]#

# 14  
Quote:
Originally Posted by bakunin
This is correct, but this is not a UNIX username: it rather is an identification similar to what in past times was used in (anonymous) ftp where one entered his own email address.
sftp is not ftp. It's ssh, fundamentally - a shell login.
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