SSH into localhost without a password

[wiel]

I am trying to ssh locally into localhost without a password after i enter these two commands but Im still being asked for a password. where did i go wrong?

# ssh-keygen -t dsa -P '' -f ~/.ssh/id_dsa
# cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keys

ubuntu@oh-squiggly-line:~$ sudo chown -R ubuntu project
ubuntu@oh-squiggly-line:~$ ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/home/ubuntu/.ssh/id_rsa): /home/ubuntu/project/.ssh/id_rsa
/home/ubuntu/project/.ssh/id_rsa already exists.
Overwrite (y/n)? y
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/ubuntu/project/.ssh/id_rsa.
Your public key has been saved in /home/ubuntu/project/.ssh/id_rsa.pub.
The key fingerprint is:
87:6:43:6c:7e:j7:b:fd:sb:99:99:99:f9:99:99:99 ubuntu@oh-squiggly-line
The key's randomart image is:
+--[ RSA 2048]----+
|                 |
|         o       |
|        o o      |
|       . o .     |
|      . S   .    |
|       o   o  . o|
|            o oB |
|             .+=+|
|            E=+*O|
+-----------------+
ubuntu@oh-squiggly-line:~$ cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys cat: /home/ubuntu/.ssh/id_rsa.pub: No such file or directory
ubuntu@oh-squiggly-line:~$ cat ~/project/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys
ubuntu@oh-squiggly-line:~$ ssh localhost
Enter passphrase for key '/home/ubuntu/.ssh/id_dsa':
ubuntu@localhost's password:

ubuntu@oh-squiggly-line:~$ ssh localhost
Enter passphrase for key '/home/ubuntu/.ssh/id_dsa':
ubuntu@localhost's password:
Permission denied, please try again.
ubuntu@localhost's password:

ubuntu@oh-squiggly-line:~$

[carey]

I am trying to ssh locally into localhost without a password after i enter these two commands but Im still being asked for a password. where did i go wrong?

# ssh-keygen -t dsa -P '' -f ~/.ssh/id_dsa
# cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keys

ubuntu@oh-squiggly-line:~$ sudo chown -R ubuntu project
ubuntu@oh-squiggly-line:~$ ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/home/ubuntu/.ssh/id_rsa): /home/ubuntu/project/.ssh/id_rsa
/home/ubuntu/project/.ssh/id_rsa already exists.
Overwrite (y/n)? y
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/ubuntu/project/.ssh/id_rsa.
Your public key has been saved in /home/ubuntu/project/.ssh/id_rsa.pub.
The key fingerprint is:
87:6:43:6c:7e:j7:b:fd:sb:99:99:99:f9:99:99:99 ubuntu@oh-squiggly-line
The key's randomart image is:
+--[ RSA 2048]----+
|                 |
|         o       |
|        o o      |
|       . o .     |
|      . S   .    |
|       o   o  . o|
|            o oB |
|             .+=+|
|            E=+*O|
+-----------------+
ubuntu@oh-squiggly-line:~$ cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys cat: /home/ubuntu/.ssh/id_rsa.pub: No such file or directory
ubuntu@oh-squiggly-line:~$ cat ~/project/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys
ubuntu@oh-squiggly-line:~$ ssh localhost
Enter passphrase for key '/home/ubuntu/.ssh/id_dsa':
ubuntu@localhost's password:

ubuntu@oh-squiggly-line:~$ ssh localhost
Enter passphrase for key '/home/ubuntu/.ssh/id_dsa':
ubuntu@localhost's password:
Permission denied, please try again.
ubuntu@localhost's password:

ubuntu@oh-squiggly-line:~$

You need to edit /etc/ssh/sshd_config; Disable password challenge. Read

man sshd_config

for more.

[mistik1]

Try Renaming the keys file mv .ssh/authorized_keys .ssh/authorized_keys2
SSH2 used the authorized_keys2

[kknight]

Seems the pub key wasn't created either....Could be a permissions issue as well.

[wiel]

i did fix this a couple weeks ago. i had locked myself out trying to do this and the only way onto the machine/instance was ssh. i deleted the openssh config files and got locked out . had to mount the image on another linux machine and get the openssh config and .shh folder replaced. i dont know why it worked but Im glad and if anybody wants to do that, backup first and go google because Im not sure how i solved the problem

[carey]

i did fix this a couple weeks ago. i had locked myself out trying to do this and the only way onto the machine/instance was ssh. i deleted the openssh config files and got locked out . had to mount the image on another linux machine and get the openssh config and .shh folder replaced. i dont know why it worked but Im glad and if anybody wants to do that, backup first and go google because Im not sure how i solved the problem

So could it be you were caught in the middle of a version change? The default key type is now ECDSA instead of RSA.

[wiel]

So could it be you were caught in the middle of a version change? The default key type is now ECDSA instead of RSA.

is that what theyre using in ubuntu 12? both of them were running 10

[igodit]

I know this is an old post, but I had to ask. Why would you want to SSH to localhost?

[wiel]

i was setting up hadoop at the time. i was doing this part
http://hadoop.apache.org/docs/r0.20....passphraseless

[igodit]

Okay, were you able to complete your Hadoop installation & configuration and why not use VirtualBox?