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Old 09-15-2018, 02:01 PM   #1
reddany
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Registered: Sep 2018
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how to run scp without a password


Hi,
I have a script in /etc/init.d that runs automatically when the PC starts.
This script wants to transfer a file that is on the server on my local PC, through the scp command.
I would like the script not to ask for the password when it is executed.
I saw on this forum that for the same problem it was suggested to create the public key and to copy it to the server.
I think I did correctly. but the script executed manually by the terminal, keeps asking for the password.

This is the command contained in the script:

Code:
scp -r danilo@192.168.1.24: / home / danilo / *. sql / home / danilo / backupsql /.
the key that I have generated in / home / danilo / is called
Quote:
miakey and miakey.pub
I copied miakey.pub on my server in / home / danilo

How can I change this command to run it SCP without password prompt ?

Thanks for the attention
danilo
 
Old 09-15-2018, 03:23 PM   #2
Habitual
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Registered: Jan 2011
Location: Abingdon, VA
Distribution: Catalina
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Quote:
Originally Posted by reddany View Post

How can I change this command to run it SCP without password prompt ?

Thanks for the attention
danilo
Welcome to LQ danilo!

Most ssh utilities implement -i /path/to/key, so here's the syntax:
you said you
Quote:
Originally Posted by reddany View Post
I copied miakey.pub on my server in /home/ danilo
Change it. Which direction are you headed and from where?
That is not hard to figure out!
Short answer if I have to "make it work", and I were you, I'd be in physical possession (Copied to localhost) of the miakey on both hosts..
One hiccup, there may be a password in the key.

Code:
scp -i /home/danilo/miakey / home / danilo / *. sql / home / danilo / backupsql /. danilo@192.168.1.24
WHAT are you doing with this string, please?
Code:
/ home / danilo / *. sql / home / danilo / backupsql /.
Tip: Please don't use spaces inside [code][/code] tags. IDK WT heck that string is about. ;(
Looks like a suicide note.


Maybe.
Sorry if that's harsh
https://wiki.osuosl.org/howtos/ssh_key_tutorial.html

Last edited by Habitual; 09-15-2018 at 03:25 PM.
 
Old 09-15-2018, 03:31 PM   #3
michaelk
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Welcome to LinuxQuestions.

There are many ssh private key guides that can be found by searching the web.

The default location for public and private keys is in your users ~/.ssh directory. The public key is copied to the servers authorized_keys file. You can use ssh-copy-id script which will copy the public key to the correct location on the server.

The distribution/version on your local PC is important because it depends on the init system it uses. While systemd is backwards compatible with init.d your script must comply with the standard LSB format and must be ran at the proper time such that networking has started.

A simpler method would be to run the script from a cron task at boot time or using rc.local.

https://help.ubuntu.com/community/SSH/OpenSSH/Keys
You do not need a passphrase.

Last edited by michaelk; 09-15-2018 at 03:32 PM.
 
  


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