I use ssh-copy-id to add public key to another host. This is the output:
Now try logging into the machine, with "ssh 'hostB'", and check in:
.ssh/authorized_keys
to make sure we haven't added extra keys that you weren't expecting.
However, I still need to enter password each time I login to that host.
Here is the ssh -v output:
jiptan@hostA:~$ ssh -v hostB
OpenSSH_5.5p1 Debian-4ubuntu4, OpenSSL 0.9.8o 01 Jun 2010
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug1: Connecting to hostB [10.7.242.61] port 22.
debug1: Connection established.
debug1: identity file /home/jiptan/.ssh/id_rsa type 1
debug1: Checking blacklist file /usr/share/ssh/blacklist.RSA-2048
debug1: Checking blacklist file /etc/ssh/blacklist.RSA-2048
debug1: identity file /home/jiptan/.ssh/id_rsa-cert type -1
debug1: identity file /home/jiptan/.ssh/id_dsa type -1
debug1: identity file /home/jiptan/.ssh/id_dsa-cert type -1
debug1: Remote protocol version 2.0, remote software version OpenSSH_4.3
debug1: match: OpenSSH_4.3 pat OpenSSH_4*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_5.5p1 Debian-4ubuntu4
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 'B' is known and matches the RSA host key.
debug1: Found key in /home/jiptan/.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: Roaming not allowed by server
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey,gssapi-with-mic,password
debug1: Next authentication method: gssapi-with-mic
debug1: Unspecified GSS failure. Minor code may provide more information
Credentials cache file '/tmp/krb5cc_1028' not found
debug1: Unspecified GSS failure. Minor code may provide more information
Credentials cache file '/tmp/krb5cc_1028' not found
debug1: Unspecified GSS failure. Minor code may provide more information
debug1: Next authentication method: publickey
debug1: Offering public key: /home/jiptan/.ssh/id_rsa
debug1: Authentications that can continue: publickey,gssapi-with-mic,password
debug1: Trying private key: /home/jiptan/.ssh/id_dsa
debug1: Next authentication method: password
ls -ld ~ ~/.ssh ~/.ssh/authorized_keys? (The files/directories cannot be group-writable, even if you're the only member of the group.) What is the value ofPubkeyAuthenticationin yoursshd_config(5)configuration file? What is the value ofRevokedKeysin yoursshd_config(5)file? Is that file readable? What is the content of your/etc/pam.d/sshdfile? How about any@included PAM configurations? – sarnold Dec 15 '11 at 23:12