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authorized_keys and passwordless login

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Operating Systems Linux Red Hat authorized_keys and passwordless login
# 1  
Old 12-04-2003
authorized_keys and passwordless login

I am trying to set up ssh/scp to be able to login in w/o using a password. The man pages for ssh and ssh-keygen explain how to do this.

So, using "rsa1" style, I created the public and private keys by way of ssh-keygen, then added the contents of "$HOME/.ssh/" to a newly created "$HOME/.ssh/authorized_keys" file on the remote system I am want to log into.

But, it is still asking me for a password when I ssh to the remote server. I did not use a passphrase, either, when creating the keys by way of ssh-keygen.

What am I doing wrong????? I also found this resource on the web, and it verifys that I am doing this step by step.

If anyone has done this, please let me know what I am doing wrong!!!

Thanks in advance,

# 2  
Old 12-04-2003
got it working . . .

Problem was . . . ssh was expecting SSH2/protocol 2. So, I used the -oProtocol=1 option on the ssh/scp commands, and it works!!!

You can either manually override it using the above -o option, or change the Protocol in ssh_config(default is 2,1, meaning that version 2 is tried first and falls back to version 1 if 2 is not available, that is why I was getting hosed . . .Smilie)

# 3  
Old 07-17-2004
Passwordless login


I am facing the same problem as you did. But using the -o option manully and trying also is not resolving the problem...

Any suggestions.....Basically, i got it working from machine A to B...i am not able to do so from B to A
# 4  
Old 07-17-2004
Here's one thing to check....authorized_keys will be ignored if it is writable or could be replaced by anyone other than you. So $HOME must be writable only by you. Ditto $HOME/.ssh and $HOME/.shh/authorized_keys. This also applies to the parent directory of $HOME all the way back to /.
# 5  
Old 07-18-2004

This is my folder structure..


ravala and ssh are writable only by me. I dont have permissions to change the properties of home.

But still it prompts for password.
# 6  
Old 07-19-2004


I got this working, but not sure how this worked. I deleted all the old keys and created new keys . Also checked the folder permission as Perderabo suggested. It works fine now without any password prompt.

Thanks for all your help
# 7  
Old 05-09-2008
Hi guys,

I'm bumbling through something similar.

I'm having trouble understanding the client server terminology.

I have a Laptop with Redhat linux on, and I'd like to back the hard disk up, across my home LAN to a Sun Solaris 8 server.

In this case, which is regarded as the server and which is the client?

Many thanks and kind regards,


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