Csdrhrt

I am trying to login through ssh command to another host through Kerberos gssapi enabled but I am getting permission deny error message.

Following is command output

Administrator@bwin2k1664b-69 ~

$ ssh -K -vvv Administrator@bwin2k1664b-73

OpenSSH_7.9p1, OpenSSL 1.0.2p  14 Aug 2018

debug1: Reading configuration data /home/Administrator/.ssh/config

debug2: resolving "bwin2k1664b-73" port 22

debug2: ssh_connect_direct

debug1: Connecting to bwin2k1664b-73 [10.97.240.73] port 22.

debug1: Connection established.

debug1: identity file /home/Administrator/.ssh/id_rsa type -1

debug1: identity file /home/Administrator/.ssh/id_rsa-cert type -1

debug1: identity file /home/Administrator/.ssh/id_dsa type -1

debug1: identity file /home/Administrator/.ssh/id_dsa-cert type -1

debug1: identity file /home/Administrator/.ssh/id_ecdsa type -1

debug1: identity file /home/Administrator/.ssh/id_ecdsa-cert type -1

debug1: identity file /home/Administrator/.ssh/id_ed25519 type -1

debug1: identity file /home/Administrator/.ssh/id_ed25519-cert type -1

debug1: identity file /home/Administrator/.ssh/id_xmss type -1

debug1: identity file /home/Administrator/.ssh/id_xmss-cert type -1

debug1: Local version string SSH-2.0-OpenSSH_7.9

debug1: Remote protocol version 2.0, remote software version OpenSSH_7.9

debug1: match: OpenSSH_7.9 pat OpenSSH* compat 0x04000000

debug2: fd 3 setting O_NONBLOCK

debug1: Authenticating to bwin2k1664b-73:22 as 'Administrator'

debug3: hostkeys_foreach: reading file "/home/Administrator/.ssh/known_hosts"

debug3: record_hostkey: found key type ECDSA in file /home/Administrator/.ssh/known_hosts:3

debug3: load_hostkeys: loaded 1 keys from bwin2k1664b-73

debug3: order_hostkeyalgs: prefer hostkeyalgs: ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521

debug3: send packet: type 20

debug1: SSH2_MSG_KEXINIT sent

debug3: receive packet: type 20

debug1: SSH2_MSG_KEXINIT received

debug2: local client KEXINIT proposal

debug2: KEX algorithms: curve25519-sha256,curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1,ext-info-c

debug2: host key algorithms: ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519-cert-v01@openssh.com,rsa-sha2-512-cert-v01@openssh.com,rsa-sha2-256-cert-v01@openssh.com,ssh-rsa-cert-v01@openssh.com,ssh-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa

debug2: ciphers ctos: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com

debug2: ciphers stoc: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com

debug2: MACs ctos: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1

debug2: MACs stoc: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1

debug2: compression ctos: none,zlib@openssh.com,zlib

debug2: compression stoc: none,zlib@openssh.com,zlib

debug2: languages ctos:

debug2: languages stoc:

debug2: first_kex_follows 0

debug2: reserved 0

debug2: peer server KEXINIT proposal

debug2: KEX algorithms: curve25519-sha256,curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1

debug2: host key algorithms: rsa-sha2-512,rsa-sha2-256,ssh-rsa,ecdsa-sha2-nistp256,ssh-ed25519

debug2: ciphers ctos: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com

debug2: ciphers stoc: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com

debug2: MACs ctos: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1

debug2: MACs stoc: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1

debug2: compression ctos: none,zlib@openssh.com

debug2: compression stoc: none,zlib@openssh.com

debug2: languages ctos:

debug2: languages stoc:

debug2: first_kex_follows 0

debug2: reserved 0

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

debug3: send packet: type 30

debug1: expecting SSH2_MSG_KEX_ECDH_REPLY

debug3: receive packet: type 31

debug1: Server host key: ecdsa-sha2-nistp256 SHA256:XxnuKY9kRRaRyjuKMX++YWeMISEKtzP/BwA0X3dxc1w

debug3: hostkeys_foreach: reading file "/home/Administrator/.ssh/known_hosts"

debug3: record_hostkey: found key type ECDSA in file /home/Administrator/.ssh/known_hosts:3

debug3: load_hostkeys: loaded 1 keys from bwin2k1664b-73

debug3: hostkeys_foreach: reading file "/home/Administrator/.ssh/known_hosts"

debug3: record_hostkey: found key type ECDSA in file /home/Administrator/.ssh/known_hosts:1

debug3: load_hostkeys: loaded 1 keys from 10.97.240.73

debug1: Host 'bwin2k1664b-73' is known and matches the ECDSA host key.

debug1: Found key in /home/Administrator/.ssh/known_hosts:3

debug3: send packet: type 21

debug2: set_newkeys: mode 1

debug1: rekey after 134217728 blocks

debug1: SSH2_MSG_NEWKEYS sent

debug1: expecting SSH2_MSG_NEWKEYS

debug3: receive packet: type 21

debug1: SSH2_MSG_NEWKEYS received

debug2: set_newkeys: mode 0

debug1: rekey after 134217728 blocks

debug1: Will attempt key: /home/Administrator/.ssh/id_rsa

debug1: Will attempt key: /home/Administrator/.ssh/id_dsa

debug1: Will attempt key: /home/Administrator/.ssh/id_ecdsa

debug1: Will attempt key: /home/Administrator/.ssh/id_ed25519

debug1: Will attempt key: /home/Administrator/.ssh/id_xmss

debug2: pubkey_prepare: done

debug3: send packet: type 5

debug3: receive packet: type 7

debug1: SSH2_MSG_EXT_INFO received

debug1: kex_input_ext_info: server-sig-algs=<ssh-ed25519,ssh-rsa,rsa-sha2-256,rsa-sha2-512,ssh-dss,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521>

debug3: receive packet: type 6

debug2: service_accept: ssh-userauth

debug1: SSH2_MSG_SERVICE_ACCEPT received

debug3: send packet: type 50

debug3: receive packet: type 51

debug1: Authentications that can continue: publickey,gssapi-with-mic

debug3: start over, passed a different list publickey,gssapi-with-mic

debug3: preferred gssapi-with-mic,publickey,keyboard-interactive,password

debug3: authmethod_lookup gssapi-with-mic

debug3: remaining preferred: publickey,keyboard-interactive,password

debug3: authmethod_is_enabled gssapi-with-mic

debug1: Next authentication method: gssapi-with-mic

debug3: send packet: type 50

debug2: we sent a gssapi-with-mic packet, wait for reply

debug3: receive packet: type 51

debug1: Authentications that can continue: publickey,gssapi-with-mic

debug3: send packet: type 50

debug2: we sent a gssapi-with-mic packet, wait for reply

debug3: receive packet: type 51

debug1: Authentications that can continue: publickey,gssapi-with-mic

debug2: we did not send a packet, disable method

debug3: authmethod_lookup publickey

debug3: remaining preferred: keyboard-interactive,password

debug3: authmethod_is_enabled publickey

debug1: Next authentication method: publickey

debug1: Trying private key: /home/Administrator/.ssh/id_rsa

debug3: no such identity: /home/Administrator/.ssh/id_rsa: No such file or directory

debug1: Trying private key: /home/Administrator/.ssh/id_dsa

debug3: no such identity: /home/Administrator/.ssh/id_dsa: No such file or directory

debug1: Trying private key: /home/Administrator/.ssh/id_ecdsa

debug3: no such identity: /home/Administrator/.ssh/id_ecdsa: No such file or directory

debug1: Trying private key: /home/Administrator/.ssh/id_ed25519

debug3: no such identity: /home/Administrator/.ssh/id_ed25519: No such file or directory

debug1: Trying private key: /home/Administrator/.ssh/id_xmss

debug3: no such identity: /home/Administrator/.ssh/id_xmss: No such file or directory

debug2: we did not send a packet, disable method

debug1: No more authentication methods to try.

Administrator@bwin2k1664b-73: Permission denied (publickey,gssapi-with-mic).

do have following setting on server -

BWIN2K1664B-73+Administrator@bwin2k1664b-73 ~

$ cat .ssh/config

Host *.BWAMBW.com

    User Administrator

    GSSAPIAuthentication yes

    GSSAPIDelegateCredentials yes

In /etc/sshd_config file -

KerberosAuthentication yes

KerberosTicketCleanup yes



# GSSAPI options

GSSAPIAuthentication yes

GSSAPICleanupCredentials yes

Please note envs kdc, client and server are on windows platform. I am working through Cygwin.

Can someone please help me on this.

Let me know if you need further more information.

Thanks,
Hrushi