I am trying to login to the remote server using ssh client from ubuntu, but public key authentication does not work and asks me to enter ssh password.Here are the debug report, don't know what does it means..OpenSSH_6.6.1, OpenSSL 1.0.1f 6 Jan 2014debug1: Reading configuration data /etc/ssh/ssh_configdebug1: /etc/ssh/ssh_config line 19: Applying options for *debug1: Connecting to shell.gridhost.co.uk [185.52.26.190] port 22.debug1: Connection established.debug1: identity file /home/dipengrg/.ssh/id_rsa type 1debug1: identity file /home/dipengrg/.ssh/id_rsa-cert type -1debug1: identity file /home/dipengrg/.ssh/id_dsa type -1debug1: identity file /home/dipengrg/.ssh/id_dsa-cert type -1debug1: identity file /home/dipengrg/.ssh/id_ecdsa type -1debug1: identity file /home/dipengrg/.ssh/id_ecdsa-cert type -1debug1: identity file /home/dipengrg/.ssh/id_ed25519 type -1debug1: identity file /home/dipengrg/.ssh/id_ed25519-cert type -1debug1: Enabling compatibility mode for protocol 2.0debug1: Local version string SSH-2.0-OpenSSH_6.6.1p1 Ubuntu-2ubuntu2.3debug1: Remote protocol version 2.0, remote software version OpenSSH_5.3debug1: match: OpenSSH_5.3 pat OpenSSH_5* compat 0x0c000000debug1: SSH2_MSG_KEXINIT sentdebug1: SSH2_MSG_KEXINIT receiveddebug1: kex: server-&gt;client aes128-ctr hmac-md5 nonedebug1: kex: client-&gt;server aes128-ctr hmac-md5 nonedebug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024&lt;3072&lt;8192) sentdebug1: expecting SSH2_MSG_KEX_DH_GEX_GROUPdebug1: SSH2_MSG_KEX_DH_GEX_INIT sentdebug1: expecting SSH2_MSG_KEX_DH_GEX_REPLYdebug1: Server host key: RSA 31:62:64:d1:f6:64:a7:4f:68:fe:80:97:34:37:0b:bedebug1: Host &#039;shell.gridhost.co.uk&#039; is known and matches the RSA host key.debug1: Found key in /home/dipengrg/.ssh/known_hosts:1debug1: ssh_rsa_verify: signature correctdebug1: SSH2_MSG_NEWKEYS sentdebug1: expecting SSH2_MSG_NEWKEYSdebug1: SSH2_MSG_NEWKEYS receiveddebug1: Roaming not allowed by serverdebug1: SSH2_MSG_SERVICE_REQUEST sentdebug1: SSH2_MSG_SERVICE_ACCEPT receiveddebug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,passworddebug1: Next authentication method: gssapi-keyexdebug1: No valid Key exchange contextdebug1: Next authentication method: gssapi-with-micdebug1: Unspecified GSS failure. Minor code may provide more informationNo Kerberos credentials availabledebug1: Unspecified GSS failure. Minor code may provide more informationNo Kerberos credentials availabledebug1: Unspecified GSS failure. Minor code may provide more informationdebug1: Unspecified GSS failure. Minor code may provide more informationNo Kerberos credentials availabledebug1: Next authentication method: publickeydebug1: Offering RSA public key: /home/dipengrg/.ssh/id_rsadebug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,passworddebug1: Trying private key: /home/dipengrg/.ssh/id_dsadebug1: Trying private key: /home/dipengrg/.ssh/id_ecdsadebug1: Trying private key: /home/dipengrg/.ssh/id_ed25519debug1: Next authentication method: password
Cannot ssh login to remote server using public key authentication
ubuntu;ssh