root@pen-test:~# chmod 600 ubuntu_unicam.pem
root@pen-test:~# ssh -vvv -i ~/ubuntu_unicam.pem
ubu...@90.147.166.221OpenSSH_7.4p1 Debian-6, OpenSSL 1.0.2k 26 Jan 2017
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug2: resolving "90.147.166.221" port 22
debug2: ssh_connect_direct: needpriv 0
debug1: Connecting to 90.147.166.221 [90.147.166.221] port 22.
debug1: Connection established.
debug1: permanently_set_uid: 0/0
debug1: key_load_public: No such file or directory
debug1: identity file /root/ubuntu_unicam.pem type -1
debug1: key_load_public: No such file or directory
debug1: identity file /root/ubuntu_unicam.pem-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_7.4p1 Debian-6
debug1: Remote protocol version 2.0, remote software version OpenSSH_7.2p2 Ubuntu-4ubuntu2.1
debug1: match: OpenSSH_7.2p2 Ubuntu-4ubuntu2.1 pat OpenSSH* compat 0x04000000
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to
90.147.166.221:22 as 'ubuntu'
debug3: hostkeys_foreach: reading file "/root/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /root/.ssh/known_hosts:1
debug3: load_hostkeys: loaded 1 keys from 90.147.166.221
debug3: order_hostkeyalgs: prefer hostkeyalgs:
ecdsa-sha2-nis...@openssh.com,
ecdsa-sha2-nis...@openssh.com,
ecdsa-sha2-nis...@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,
curve255...@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-group-exchange-sha1,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1,ext-info-c
debug2: host key algorithms:
ecdsa-sha2-nis...@openssh.com,
ecdsa-sha2-nis...@openssh.com,
ecdsa-sha2-nis...@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,
ssh-ed2551...@openssh.com,
ssh-rsa-...@openssh.com,ssh-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa
debug2: ciphers ctos:
chacha20...@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,
aes12...@openssh.com,
aes25...@openssh.com,aes128-cbc,aes192-cbc,aes256-cbc
debug2: ciphers stoc:
chacha20...@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,
aes12...@openssh.com,
aes25...@openssh.com,aes128-cbc,aes192-cbc,aes256-cbc
debug2: MACs ctos:
umac-...@openssh.com,
umac-1...@openssh.com,
hmac-sha...@openssh.com,
hmac-sha...@openssh.com,
hmac-s...@openssh.com,
uma...@openssh.com,
umac...@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc:
umac-...@openssh.com,
umac-1...@openssh.com,
hmac-sha...@openssh.com,
hmac-sha...@openssh.com,
hmac-s...@openssh.com,
uma...@openssh.com,
umac...@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,
zl...@openssh.com,zlib
debug2: compression stoc: none,
zl...@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:
curve255...@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha1
debug2: host key algorithms: ssh-rsa,rsa-sha2-512,rsa-sha2-256,ecdsa-sha2-nistp256,ssh-ed25519
debug2: ciphers ctos:
chacha20...@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,
aes12...@openssh.com,
aes25...@openssh.comdebug2: ciphers stoc:
chacha20...@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,
aes12...@openssh.com,
aes25...@openssh.comdebug2: MACs ctos:
umac-...@openssh.com,
umac-1...@openssh.com,
hmac-sha...@openssh.com,
hmac-sha...@openssh.com,
hmac-s...@openssh.com,
uma...@openssh.com,
umac...@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc:
umac-...@openssh.com,
umac-1...@openssh.com,
hmac-sha...@openssh.com,
hmac-sha...@openssh.com,
hmac-s...@openssh.com,
uma...@openssh.com,
umac...@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,
zl...@openssh.comdebug2: compression stoc: none,
zl...@openssh.comdebug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug1: kex: algorithm:
curve255...@libssh.orgdebug1: kex: host key algorithm: ecdsa-sha2-nistp256
debug1: kex: server->client cipher:
chacha20...@openssh.com MAC: <implicit> compression: none
debug1: kex: client->server cipher:
chacha20...@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:P1iziasLR9vdC3VLzsWtniVuQfVq/oZ7dPwxNZXzllg
debug3: hostkeys_foreach: reading file "/root/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /root/.ssh/known_hosts:1
debug3: load_hostkeys: loaded 1 keys from 90.147.166.221
debug1: Host '90.147.166.221' is known and matches the ECDSA host key.
debug1: Found key in /root/.ssh/known_hosts:1
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
debug2: key: /root/ubuntu_unicam.pem ((nil)), explicit
debug3: send packet: type 5
debug3: receive packet: type 7
debug1: SSH2_MSG_EXT_INFO received
debug1: kex_input_ext_info: server-sig-algs=<rsa-sha2-256,rsa-sha2-512>
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
debug3: start over, passed a different list publickey
debug3: preferred gssapi-keyex,gssapi-with-mic,publickey,keyboard-interactive,password
debug3: authmethod_lookup publickey
debug3: remaining preferred: keyboard-interactive,password
debug3: authmethod_is_enabled publickey
debug1: Next authentication method: publickey
debug1: Trying private key: /root/ubuntu_unicam.pem
debug3: sign_and_send_pubkey: RSA SHA256:xcWt7LKFMWWEd2oza/oklsOrbo9lE2wlUS9Zq203yHw
debug3: send packet: type 50
debug2: we sent a publickey packet, wait for reply
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey
debug2: we did not send a packet, disable method
debug1: No more authentication methods to try.
Permission denied (publickey).
root@pen-test:~#