몇 달 후 ssh를 통해 로그인할 수 없습니다.

내 사무실에는 내부 웹 애플리케이션 주소 지정 시스템을 제공하는 데 사용되는 Ubuntu 13.04를 실행하는 Dell Poweredge가 있습니다. 마지막으로 로그인한 지 최소 2개월(아마 3개월)이 지났습니다. 모든 것예잘되는데 로그인이 안되네요. 나는 Putty에 저장되어 있기 때문에 올바른 자격 증명을 가지고 있다는 것을 알고 있습니다.

오류는 다음과 같습니다. 액세스가 거부되었습니다.

이런 일이 발생하는 원인은 무엇입니까? 스탠드에서 떼어내고 모니터와 키보드 등을 부착하지 않고도 고칠 수 있나요?(그런데 무게가 50파운드가 넘으니 전혀 기대되지 않습니다.)

guest@buildsys2:~$ ssh -v [email protected]
OpenSSH_5.9p1 Debian-5ubuntu1.1, OpenSSL 1.0.1 14 Mar 2012
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug1: Connecting to 192.168.1.10 [192.168.1.10] port 22.
debug1: Connection established.
debug1: SELinux support disabled
debug1: identity file /tmp/guest-YBscPe/.ssh/id_rsa type -1
debug1: identity file /tmp/guest-YBscPe/.ssh/id_rsa-cert type -1
debug1: identity file /tmp/guest-YBscPe/.ssh/id_dsa type -1
debug1: identity file /tmp/guest-YBscPe/.ssh/id_dsa-cert type -1
debug1: identity file /tmp/guest-YBscPe/.ssh/id_ecdsa type -1
debug1: identity file /tmp/guest-YBscPe/.ssh/id_ecdsa-cert type -1
debug1: Remote protocol version 2.0, remote software version OpenSSH_5.9p1 > 
Debian-5ubuntu1.1
debug1: match: OpenSSH_5.9p1 Debian-5ubuntu1.1 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_5.9p1 Debian-5ubuntu1.1
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client aes128-ctr hmac-md5 none
debug1: kex: client->server aes128-ctr hmac-md5 none
debug1: sending SSH2_MSG_KEX_ECDH_INIT
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: ECDSA [removed]
The authenticity of host '192.168.1.10 (192.168.1.10)' can't be established.
ECDSA key fingerprint is [removed].
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '192.168.1.10' (ECDSA) to the list of known hosts.
debug1: ssh_ecdsa_verify: signature correct
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: Roaming not allowed by server
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey,password
debug1: Next authentication method: publickey
debug1: Trying private key: /tmp/guest-YBscPe/.ssh/id_rsa
debug1: Trying private key: /tmp/guest-YBscPe/.ssh/id_dsa
debug1: Trying private key: /tmp/guest-YBscPe/.ssh/id_ecdsa
debug1: Next authentication method: password
[email protected]'s password: 
debug1: Authentications that can continue: publickey,password
Permission denied, please try again.
[email protected]'s password: