How to get a file from server using command prompt

[Mohan1289]

To get a file without the password, you'll have to set up a web server or an Anonymous FTP server and then put the file in the directory that is published by the server. Apache is by far the most common web server, but nginx is gaining in popularity.

how can i do that any INSTRUCTIONS?? please

[nothingspecial]

The best way to do that would be to set up keys

From your local machine

ssh-keygen

You can enter through the passphrase bit because if you use a passphrase then you will have to type it which defeats the object. Then

ssh-copy-id mohan@ip.address.of.server

You will have to type the servers password this time but after that you won't.

[Mohan1289]

The best way to do that would be to set up keys

From your local machine

ssh-keygen

You can enter through the passphrase bit because if you use a passphrase then you will have to type it which defeats the object. Then

ssh-copy-id mohan@ip.address.of.server

You will have to type the servers password this time but after that you won't.

i tried this but is it correct??

ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key (/home/krishna/.ssh/id_rsa): 
Enter passphrase (empty for no passphrase): 
Enter same passphrase again: 
Your identification has been saved in /home/krishna/.ssh/id_rsa.
Your public key has been saved in /home/krishna/.ssh/id_rsa.pub.
The key fingerprint is:
bc:27:80:fb:8c:5c:d0:46:18:0d:94:c8:27:d0:37:17 krishna@ubuntu
The key's randomart image is:
+--[ RSA 2048]----+
|.+ o++E.         |
|  = =oo          |
|   +.o.          |
|     + .         |
|    o + S        |
|     + . .       |
|    . . o .      |
|   . =   o       |
|    o o          |
+-----------------+

[nothingspecial]

yep, that looks good. Then

ssh-copy-id mohan@192.168.?.?

or what ever the ip address is.

[Mohan1289]

yep, that looks good. Then

ssh-copy-id mohan@192.168.?.?

or what ever the ip address is.

This is what the output is

 ssh-copy-id mohan@10.40.70.68
mohan@10.40.70.68's password: 
Now try logging into the machine, with "ssh 'mohan@10.40.70.68'", and check in:

  ~/.ssh/authorized_keys

to make sure we haven't added extra keys that you weren't expecting.

what should i do after this?

[nothingspecial]

That's right.

You should now be able to login or scp from that server without a password.

[Mohan1289]

That's right.

You should now be able to login or scp from that server without a password.

so can i download the file without being prompted for the password??

[nothingspecial]

yep

[Mohan1289]

yep

Thank you it's downloaded automatically thank you.. can you please explain me the use of ssh-keygen and then copying the id?

[nothingspecial]

You are creating a pair of keys. You send one to the server and you have one on your local machine. When you attempt to connect to the server via ssh (which includes scp) the server asks if you have a key. You show it your key and it checks it against the one you sent it. Because they match up, the server knows it's you and lets you in ...........


........ sort of.

Keys are generated with fancy random maths stuff and are much more secure than passwords. There is some information on the wiki

https://help.ubuntu.com/community/SSH/OpenSSH/Keys

Somewhere on this forum is a very good analogy that explains gpg, keys and all this stuff really well but I can't find it right now.