dsa keys - different pub file

Shell Programming and Scripting
1

Hi

I wish to set up sftp between server1 and server2. File needs to be moved from server1 to server2.
I have logged into server1 with my credentials and cd to .ssh
using ssh-keygen -t dsa , i have generated the keys and stores in id_dsa.pub and id_dsa file.
Later i have moved the contents of pub file to authorized_keys on server2 and now SFTP is working.

Now i have removed everything in my .ssh directory and create new keys, but this time i have saved the private and pub files as server1-id_dsa.
Now pub file is server1-id_dsa.pub and private is server1-id_dsa. I have moved the contents of pub file to authorized_keys on server2.

Now when i try to connect (SFTP ), it is asking me for a password.
Will SFTP only looks at id_dsa and id_dsa.pub files?
If yes, then how can we handle multiple connections to multiple servers?
Can i not use a different file name for my pub and private files?

2 
$ sftp
usage: sftp [-1246Cpqrv] [-B buffer_size] [-b batchfile] [-c cipher]
          [-D sftp_server_path] [-F ssh_config] [-i identity_file]
          [-o ssh_option] [-P port] [-R num_requests] [-S program]
          [-s subsystem | sftp_server] host
       sftp [user@]host[:file ...]
       sftp [user@]host[:dir[/]]
       sftp -b batchfile [user@]host
$
3

Hi,

I do not have that option under sftp.

sftp [-1Cv] [-B buffer_size] [-b batchfile] [-F ssh_config]
[-o ssh_option] [-P sftp_server_path] [-R num_requests]
[-S program] [-s subsystem | sftp_server] host
sftp [[user@]host[:file [file]]]
sftp [[user@]host[:dir[/]]]
sftp -b batchfile [user@]host

Anyways i was able to connect using ssh. But how can i transfer a file under ssh. scp is not working for me?

I appreciate your response

4

In what way is scp "not working"? What did you do, and what happened?