~$ ssh -v user1@server.com -p 2222
OpenSSH_7.5p1 Ubuntu-10ubuntu0.1, OpenSSL 1.0.2g  1 Mar 2016
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug1: Connecting to server.com [10.0.2.5] port 2222.
debug1: Connection established.
debug1: key_load_public: No such file or directory
debug1: identity file /home/micheleclient/.ssh/id_rsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/micheleclient/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/micheleclient/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/micheleclient/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/micheleclient/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/micheleclient/.ssh/id_ecdsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/micheleclient/.ssh/id_ed25519 type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/micheleclient/.ssh/id_ed25519-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_7.5p1 Ubuntu-10ubuntu0.1
debug1: Remote protocol version 2.0, remote software version OpenSSH_7.5p1 Ubuntu-10ubuntu0.1
debug1: match: OpenSSH_7.5p1 Ubuntu-10ubuntu0.1 pat OpenSSH* compat 0x04000000
debug1: Authenticating to server.com:2222 as 'user1'
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:ycCOVyRMzFst+8uwleIs1VtvhsoN+3GZE/Tjj7i/MlA
debug1: Host '[server.com]:2222' is known and matches the ECDSA host key.
debug1: Found key in /home/micheleclient/.ssh/known_hosts:10
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=<ssh-ed25519,ssh-rsa,rsa-sha2-256,rsa-sha2-512,ssh-dss,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521>
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey,password
debug1: Next authentication method: publickey
debug1: Trying private key: /home/micheleclient/.ssh/id_rsa
debug1: Trying private key: /home/micheleclient/.ssh/id_dsa
debug1: Trying private key: /home/micheleclient/.ssh/id_ecdsa
debug1: Trying private key: /home/micheleclient/.ssh/id_ed25519
debug1: Next authentication method: password
user1@server.com's password:
debug1: Authentications that can continue: publickey,password
Permission denied, please try again.
user1@server.com's password:
debug1: Authentications that can continue: publickey,password
Permission denied, please try again.
user1@server.com's password:
debug1: Authentications that can continue: publickey,password
debug1: No more authentication methods to try.
Permission denied (publickey,password).