Question

SFTP issue

Asked by: suchu_suresh

Hi,
 I have an scenario to sftp the files using Admin Id (user--> mhvsftp). But there are 5 other users (call it as 'businessuser1, businessuser2, etc.'). User "businessuser1" can able to login through his id and will execute the sftp script using mhvsftp. (FYI, using 'mhvsftp' user the key pair is generated and shared with external vendor External.ftp.com).
I have tried to acheive the same by the following method.
Step 1:  Created a ".externalvendor_sftp" file using user mhvsftp.
Step2 : Edited teh file ".externalvendor_sftp" to have the following
FTPSTRING=External.ftp.com
USERNAME=mhvsftp
PASSWORD='happy$1

Step3: Inside my sftp script i have entered the following to execute through mhvsftp user (even thoug i executes through businessuser1)
          ENVFILE=/mhvsftp/home/.externalvendor_sftp
          . $ENVFILE
          sftp $FTPSTRING user $USERNAME using $PASSWORD

Please let me know the sftp option to acheive  this.

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Asked On
2009-02-06 at 10:54:44ID24120376
Topic

Unix Networking

Participating Experts
3
Points
500
Comments
5

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Answers

 

by: omarfaridPosted on 2009-02-06 at 11:00:48ID: 23572917

which unix platform are you using? I am not sure if sftp supports passing username and password as you described

 

by: gheistPosted on 2009-02-06 at 11:17:42ID: 23573134

You cannot pass password to sftp or scp. You should use public key authentication for purpose.

 

by: suchu_sureshPosted on 2009-02-06 at 18:10:37ID: 23576133

I am using UNIX-AIX.

 

by: omarfaridPosted on 2009-02-06 at 22:51:18ID: 23576950

I think you need to either use scp where you need to set trust between the two systems / accounts (see links below for setting trust or no password), or use sftp along with expect (please see link for sftp and expect)

no password links:

http://waelchatila.com/2005/06/06/1118124232757.html
http://www.cvrti.utah.edu/~dustman/no-more-pw-ssh/
http://www.linuxjournal.com/article/8600

expect and sftp link

http://www.experts-exchange.com/OS/Unix/Solaris/Q_23358887.html

 

by: rgeersPosted on 2009-02-07 at 14:35:40ID: 23580585

Each of your business user on system one have to create the private/public key pair by running the command "ssh-keygen -t rsa -b 1024". If you are the admin on this system you can do this for each of these users. This creates 2 files id_rsa and id_rsa.pub in a directory ~/.ssh , you as admin can then transfer these id_rsa.pub files to the other system, and you can change the name to businessuser1.pub, bussinessuser2.pub, etc. On this other system you also run the rsa-keygan -t rsa -b 1024, but as the user the businessuser1 and businessuser2 are going to transfer to. You go to the ~./.ssh directory of your destiantion system now. There you have the 2 files id_rsa.pub and id_rsa and all the businessuser1.pub, businessuser2.pub etc. You need to create the authorized_keys file from concatenating all the businessuserxx.pub. Do this by "cat business*.pub >>authorized_keys". Now all the businessusers can transfer files to this destination without using password. You can test it by logging in via ssh without password. Make shure your destination server has a ssh server running.

20120131-EE-VQP-002

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