[CentOS] SSH login between servers still asking for password, why?

Tue Nov 3 04:23:50 UTC 2015
Reynier Perez Mira <reynierpm at gmail.com>

Thanks guys by checking permissions on /home/deploy/.ssh directory I can see
that the owner was root and that was the cause of the issue, setting that to
deploy allow me to connect from server-1 to server-2 successfully

Kind regards,

> -----Original Message-----
> From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On
> Behalf Of Clint Dilks
> Sent: Monday, November 2, 2015 11:08 PM
> To: CentOS mailing list <centos at centos.org>
> Subject: Re: [CentOS] SSH login between servers still asking for password,
> why?
> 
> Hi
> 
> On Tue, Nov 3, 2015 at 4:56 PM, Reynier Perez Mira <reynierpm at gmail.com>
> wrote:
> 
> > I have two servers identified as `server-1 - 192.168.3.128` and
> > `server-2 - 192.168.3.130`. I am setting up `capifony` for automatic
> > deployment from
> > server-1 to server-2 and this is what I have done so far:
> >
> >  1. In both servers I have created a user `deploy` without password
> > since that's the user I will use for deployment.
> >  2. In server-1 I setup a SSH keys by running the command:
> > `ssh-keygen` and I leave without pass-phrase and default directories.
> >  3. I have copied the content of `/home/deploy/.ssh/id_rsa.pub` at
> > server-1 into server-2 at `/home/deploy/.ssh/authorized_keys`.
> >  4. From server-1 I try to reach server-2 by running `ssh
> > deploy at 192.168.3.130` and it's asking for a password (below is the
> > output)
> >
> >
> /var/log/secure should give you an indication of why the key is not being
> accepted.  But you may have to turn the log level up.
> 
> But initial thoughts are that it is likely to be a permissions problem the
> ~deploy/.ssh directory needs to be 700 If you are using SE Linux then you
> may want to try doing restorecon -Rv ~deploy/.ssh
> 
> 
> 
> 
> 
> 
> >         $ ssh deploy at 192.168.3.130
> >         The authenticity of host '192.168.3.130 (192.168.3.130)' can't
> > be established.
> >         RSA key fingerprint is
> > 3c:81:da:7a:78:0f:b0:2f:44:3b:62:fb:c9:6f:33:86.
> >         Are you sure you want to continue connecting (yes/no)? yes
> >         Warning: Permanently added '192.168.3.130' (RSA) to the list
> > of known hosts.
> >         deploy at 192.168.3.130's password:
> >
> > This is the `-v` output of the command above:
> >
> >     OpenSSH_5.3p1, OpenSSL 1.0.1e-fips 11 Feb 2013
> >     debug1: Reading configuration data /etc/ssh/ssh_config
> >     debug1: Applying options for *
> >     debug1: Connecting to 192.168.3.130 [192.168.3.130] port 22.
> >     debug1: Connection established.
> >     debug1: identity file /home/deploy/.ssh/identity type -1
> >     debug1: identity file /home/deploy/.ssh/identity-cert type -1
> >     debug1: identity file /home/deploy/.ssh/id_rsa type 1
> >     debug1: identity file /home/deploy/.ssh/id_rsa-cert type -1
> >     debug1: identity file /home/deploy/.ssh/id_dsa type -1
> >     debug1: identity file /home/deploy/.ssh/id_dsa-cert type -1
> >     debug1: identity file /home/deploy/.ssh/id_ecdsa type -1
> >     debug1: identity file /home/deploy/.ssh/id_ecdsa-cert type -1
> >     debug1: Remote protocol version 2.0, remote software version
> > OpenSSH_5.3
> >     debug1: match: OpenSSH_5.3 pat OpenSSH*
> >     debug1: Enabling compatibility mode for protocol 2.0
> >     debug1: Local version string SSH-2.0-OpenSSH_5.3
> >     debug1: SSH2_MSG_KEXINIT sent
> >     debug1: SSH2_MSG_KEXINIT received
> >     debug1: kex: server->client aes128-ctr hmac-md5 none
> >     debug1: kex: client->server aes128-ctr hmac-md5 none
> >     debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent
> >     debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP
> >     debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
> >     debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
> >     debug1: Host '192.168.3.130' is known and matches the RSA host key.
> >     debug1: Found key in /home/deploy/.ssh/known_hosts:1
> >     debug1: ssh_rsa_verify: signature correct
> >     debug1: SSH2_MSG_NEWKEYS sent
> >     debug1: expecting SSH2_MSG_NEWKEYS
> >     debug1: SSH2_MSG_NEWKEYS received
> >     debug1: SSH2_MSG_SERVICE_REQUEST sent
> >     debug1: SSH2_MSG_SERVICE_ACCEPT received
> >     debug1: Authentications that can continue:
> > publickey,gssapi-keyex,gssapi-with-mic,password
> >     debug1: Next authentication method: gssapi-keyex
> >     debug1: No valid Key exchange context
> >     debug1: Next authentication method: gssapi-with-mic
> >     debug1: Unspecified GSS failure.  Minor code may provide more
> > information
> >     Cannot determine realm for numeric host address
> >
> >     debug1: Unspecified GSS failure.  Minor code may provide more
> > information
> >     Cannot determine realm for numeric host address
> >
> >     debug1: Unspecified GSS failure.  Minor code may provide more
> > information
> >
> >
> >     debug1: Unspecified GSS failure.  Minor code may provide more
> > information
> >     Cannot determine realm for numeric host address
> >
> >     debug1: Next authentication method: publickey
> >     debug1: Trying private key: /home/deploy/.ssh/identity
> >     debug1: Offering public key: /home/deploy/.ssh/id_rsa
> >     debug1: Authentications that can continue:
> > publickey,gssapi-keyex,gssapi-with-mic,password
> >     debug1: Trying private key: /home/deploy/.ssh/id_dsa
> >     debug1: Trying private key: /home/deploy/.ssh/id_ecdsa
> >     debug1: Next authentication method: password
> >     deploy at 192.168.3.130's password:
> >
> > Why? What I am doing wrong?
> >
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