UNIX for Advanced & Expert Users

wlsuser@server173> scp /tmp/harsha.txt wlsuser@server067:/tmp

wlsuser@server067> scp wlsuser@server173:/tmp/harsha.txt /tmp
wlsuser's Password:
harsha.txt           100% |***********************************************************************************************************|    49       00:00

wlsuser@server173> scp /tmp/harsha.txt wlsuser@server067:/tmp

Creating a key 
 
Use ssh-keygen. I recommend the '-t rsa' option, which creates an RSA key 
for use with version 2 of the SSH protocol. (You can use '-t rsa1' for a 
version 1 key and '-t dsa' for a DSA key, which may not be supported 
everywhere.) 
Note that with SSH1 there is no -t option, because there's only one type 
of key. 
 
Running ssh-keygen 
 
$ ssh-keygen -t rsa 
Generating public/private rsa key pair. 
Enter file in which to save the key (/home/user/.ssh/id_rsa): [press enter for default] 
Enter passphrase (empty for no passphrase): [not shown] 
Enter same passphrase again: [not shown] 
Your identification has been saved in /home/user/.ssh/id_rsa. 
Your public key has been saved in /home/user/.ssh/id_rsa.pub. 
The key fingerprint is: 
44:c8:07:c9:f8:f4:f5:9b:05:d1:0f:d1:05:f0:5d:bf user@localhost 
$ 
 
Allowing login via that key 
On the remote host, add the line in /home/user/.ssh/id_rsa.pub to 
~/.ssh/authorized_keys. 
 
Quick approach 
 
$ scp ~/.ssh/id_rsa.pub somehost:. 
user@somehost's password: [not shown] 
id_rsa.pub           100% |*****************************|   225 00:00 
$ ssh somehost 
user@somehost's password: [not shown] 
somehost$ cat id_rsa.pub >> ~/.ssh/authorized_keys 
somehost$ rm id_rsa.pub 
somehost$ exit 
$ ssh somehost 
Enter passphrase for key '/home/user/.ssh/id_rsa': [not shown] 
somehost$

wlsuser@server173> scp /tmp/harsha.txt wlsuser@server067:/tmp