Yes, you can "connect", but you will be required to change your password, at least on Ubuntu distributions. Some servers will behave differently.
debug1: Authentications that can continue: publickey,password debug3: start over, passed a different list publickey,password debug3: preferred gssapi-keyex,gssapi-with-mic,gssapi,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: /home/testsftpuser/.ssh/id_rsa debug1: read PEM private key done: type RSA debug3: sign_and_send_pubkey debug2: we sent a publickey packet, wait for reply debug3: Wrote 656 bytes for a total of 1799 debug1: Authentication succeeded (publickey). debug1: channel 0: new [client-session] debug3: ssh_session2_open: channel_new: 0 debug2: channel 0: send open
No access will be granted until your password is changed:
You are required to change your password immediately (password aged) Linux devftp01 2.6.66-38-server #43-Ubuntu SMP Thu Sep 16 16:05:42 UTC 2010 x86_64 GNU/Linux Ubuntu 12.04.4 LTS WARNING: Your password has expired. You must change your password now and login again! Changing password for testsftpuser. (current) UNIX password: