Look for SFTP client for Solaris 10x86

Question

We need an SFTP client which supports logins with and without passwords for sending files to remote SFTP sites.
Up until now, we have been using a combination of Perl, Expect and sftp command but need a better solution.
Have been unable to install into Perl the SFTP modules (Lots of problems with SSHA packates) to use it directly without Expect.
I see a few (very few) commercial packages like one from tectia.com but am looking for perhaps an open source solution.

Answer 1

You should be able to use the scp command (which is a part of ssh client on solaris, linux or cygwin/windows) in conjunction with the key based authentication
For example, if you want a scheduled job as user1 on machine1 to be able to upload a file to a directory owned by user2 on machine2:
On machine1, run ssh-keygen as user1 to create the RSA key pair (do not enter as password .)
On machine2, as user2, cd .ssh, add user1's public key to the authorized_keys file.
e.g.
ssh-rsa dWU+bihN7kYFYoQ5ycNiIl2urtzdS5GNcCtMSz
Nykgylo4ccfoAhJhAOVS3htN6hTXk45O9xrpLFrC7BzAq
aQiuuKTgxT0mOVmzFjTozwQIQmy9EUt= user1@machine1
Also, update /etc/ssh/sshd_config with
RSAAuthentication yes
you will need to ssh from user1 to machine2 and as user2 to machine1 to make sure the known_hosts file for each user gets updated