setting SSH access to localhost

Question

I am trying to setup ssh access to my own local machine. I have created the id_rsa key using ssh-keygen. I added id_rsa.pub to authroized_keys in .ssh/ I made sure the permission of authorized_keys is 640 I enabled public-key authentication in sshd_config & restarted ssh RSAAuthentication yes PubkeyAuthentication yes AuthorizedKeysFile %u/.ssh/authorized_keys However I am unable to login to ssh. The error I recieved is as follows ``` debug3: load_hostkeys: loaded 1 keys debug1: Host 'localhost' is known and matches the ECDSA host key. debug1: Found key in /home/rahul/.ssh/known_hosts:6 debug1: ssh_ecdsa_verify: signature correct debug2: kex_derive_keys debug2: set_newkeys: mode 1 debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug2: set_newkeys: mode 0 debug1: SSH2_MSG_NEWKEYS received debug1: Roaming not allowed by server debug1: SSH2_MSG_SERVICE_REQUEST sent debug2: service_accept: ssh-userauth debug2: key: /home/rahul/.ssh/id_rsa (0x7fa12de58e70), debug2: key: /h…

Accepted Answer

Have you seen auth.log (or system.log, secure.log, ect where opensshd write its logs) possibly the problem is that .ssh/authorized_keys must have 600 not 640.

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

```
chmod go-w ~/
chmod 700 ~/.ssh
chmod 600 ~/.ssh/authorized_keys
```

Hope it helps.

Edit:

We will uninstall openssh-server and purge configuration files:

```
(root)# apt-get remove --purge openssh-server
```

Now we will install again with default settings:

```
(root)# apt-get install openssh-server
```

Now we will generate our private/public key:

```
(rahul)$ ssh-keygen
```

Now we will copy the key in our local user, you will need to write your password.

```
(rahul)$ ssh-copy-id rahul@localhost
```

Try to connect now with:

```
(rahul)$ ssh rahul@localhost
```

Now it may work.

setting SSH access to localhost

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