I have a digital ocean droplet that currently allows me to login directly via the root user via SSH as the relevant keys have been added to the authorized_keys file.
ssh root@master // this works fine and i'm logged in as root
The problem comes when I try to login as a normal non-root user - I have the following output below when I run the following command:
Note I have added the relevant keys for 'bobby' to both the root authorized_keys file & the users authorized_keys file but am unable to login - any ideas?
Note - this is on a Centos server - it keeps returning the error
Permission denied (publickey,gssapi-keyex,gssapi-with-mic).
ssh bobby@master -vT
OpenSSH_7.6p1 Ubuntu-4ubuntu0.3, OpenSSL 1.0.2n 7 Dec 2017
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug1: Connecting to master [123.456.789.111] port 22.
debug1: Connection established.
debug1: identity file /home/bobby/.ssh/id_rsa type 0
debug1: key_load_public: No such file or directory
debug1: identity file /home/bobby/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/bobby/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/bobby/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/bobby/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/bobby/.ssh/id_ecdsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/bobby/.ssh/id_ed25519 type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/bobby/.ssh/id_ed25519-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_7.6p1 Ubuntu-4ubuntu0.3
debug1: Remote protocol version 2.0, remote software version OpenSSH_7.4
debug1: match: OpenSSH_7.4 pat OpenSSH* compat 0x04000000
debug1: Authenticating to master:22 as 'bobby'
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: algorithm: curve25519-sha256
debug1: kex: host key algorithm: ecdsa-sha2-nistp256
debug1: kex: server->client cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug1: kex: client->server cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: ecdsa-sha2-nistp256 SHA256:TLaJd7HJk3UVeqzrBgrQq6FfT1P20ZYAO918vRgU9Xg
debug1: Host 'master' is known and matches the ECDSA host key.
debug1: Found key in /home/bobby/.ssh/known_hosts:17
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_EXT_INFO received
debug1: kex_input_ext_info: server-sig-algs=<rsa-sha2-256,rsa-sha2-512>
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic
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
No Kerberos credentials available (default cache: FILE:/tmp/krb5cc_1000)
debug1: Unspecified GSS failure. Minor code may provide more information
No Kerberos credentials available (default cache: FILE:/tmp/krb5cc_1000)
debug1: Next authentication method: publickey
debug1: Offering public key: RSA SHA256:1vSLjFQBt1RFnBAwsTqBRE6RWQM0lDyqBdIRblVhkk8 /home/bobby/.ssh/id_rsa
debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic
debug1: Trying private key: /home/bobby/.ssh/id_dsa
debug1: Trying private key: /home/bobby/.ssh/id_ecdsa
debug1: Trying private key: /home/bobby/.ssh/id_ed25519
debug1: No more authentication methods to try.
bobby@master: Permission denied (publickey,gssapi-keyex,gssapi-with-mic).
