sftp/scp without password

Linux and Unix-Like Red Hat
1

Hi,
I want to use sftp/scp without password.How can I do that ??
I plan to use script with scp/sftp and execute by cronjob ,any sample or example?? How can I test the scp/sftp working or not in the same user account , in the same red linux server?? any suggestion ???

2

You need to generate your public/private keypair without a passphrase.

3

Hi,
could you provide more detailed procedure ????

4

ssh keys are required for what you want - do this to make keys:

ssh-keygen: password-less SSH login

5

Hi,
I try but it is not worked.
I paste the output on the command
Why it is not worked ???
----------------------------------
[gxsuser@TSTgcota ~]$ ssh -v gxsuser@tstgcota
OpenSSH_3.9p1, OpenSSL 0.9.7a Feb 19 2003
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug1: Connecting to tstgcota [127.0.0.1] port 22.
debug1: Connection established.
debug1: identity file /home/gxsuser/.ssh/id_rsa type 1
debug1: Remote protocol version 1.99, remote software version OpenSSH_3.9p1
debug1: match: OpenSSH_3.9p1 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_3.9p1
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client aes128-cbc hmac-md5 none
debug1: kex: client->server aes128-cbc hmac-md5 none
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
debug1: Host 'tstgcota' is known and matches the RSA host key.
debug1: Found key in /home/gxsuser/.ssh/known_hosts:1
debug1: ssh_rsa_verify: signature correct
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey,gssapi-with-mic,password
debug1: Next authentication method: gssapi-with-mic
debug1: Authentications that can continue: publickey,gssapi-with-mic,password
debug1: Authentications that can continue: publickey,gssapi-with-mic,password
debug1: Next authentication method: publickey
debug1: Offering public key: /home/gxsuser/.ssh/id_rsa
debug1: Authentications that can continue: publickey,gssapi-with-mic,password
debug1: Next authentication method: password
gxsuser@tstgcota's password:

6

I assume that you appended your keys to your ~/.ssh/authorized_keys file on the system you want to be able to ssh into.

Check file permissions on the following directories on this system.

     ~/.ssh directory
     ~/.ssh/authorized_keys file

The permissions should allow writing only by the ownwr, i.e. you.