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Secure FTP over SSH

Secure FTP over SSH is based on the Secure Shell protocol. In contrast to standard FTP, only one port is used for session handling and data transfer. Therefore, the implementation is firewall friendly. The ECuRep SFTP server can be reached at sftp.ecurep.ibm.com on the default port 22. Only SFTP based on SSH version 2 protocol is supported; Secure Copy (SCP) requests are denied.

In general, the directory structure of the SFTP server is the same as on the standard FTP server except that only the toibm directory is available. Because SFTP Windows GUI clients require directory listing, files can be listed in upload directories. Downloads of such files is administratively prohibited. They are also moved to another directory a few seconds after the upload is started, and therefore vanish from the directory listing after a short period.

To allow automated backend processing, a file naming convention needs to be met:

xxxxx.bbb.ccc.yyy.yyy --->

Field Explanation Sample
xxxxx PMR Number 34143
bbb Branch Office 055
ccc IBM Country Code 724
yyy.yyy A short description for the file type zip or tar

Example
34143.055.724.zip
(pmr_#.branch_office_#.country_code.zip)

The following ciphers are supported:
• aes128-cbc
• aes192-cbc
• aes256-cbc
• 3des-cbc

The following hashing algorithms are supported:
• sha1

Server host key information and fingerprint
Key type: ssh-dss
Key length: 1024
Fingerprint: 83:f0:e4:63:4a:5c:d6:06:90:17:a8:34:8e:37:e7:5c
Babbleable: xevef-cyzyh-vazyl-baheh-rakih-nupyr-refod-hyfof-pucyp-nakar-coxix

Key type: ssh-rsa
Key length: 2048
Fingerprint: 19:94:4d:8f:81:b3:94:9c:c8:87:34:49:a9:bf:44:64
Babbleable: xomor-degap-fozel-hizeb-pihad-kutap-kagim-palab-zivus-tahih-faxux