リモートシステムでキーを更新してもSSH接続が承認されないのはなぜですか？

私のローカルコンピュータに公開鍵が保存されています。

.ssh/id_rsa.pub

リモートシステムにログインできるように、次のコマンドを使用してこのキーをコピーしますssh-copy-id。

ssh-copy-id user@remote-host

リモートホストでは、ローカルシステム情報.ssh/authorized_keysでssh-dss始まり、終わる2行がファイルに追加されていることがわかります。ssh-rsa

ただし、次のようにリモートコンピュータにログインすると、

ssh user@remote-host

まだパスワードを聞いています。なぜそんなことですか？どうやって解決しますか？

• ファイル権限がauthorized_keys正しいです。
• 結果は次のとおりですssh -v。

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 xxx [xxx] port 22.
debug1: Connection established.
debug1: identity file /home/alexander/.ssh/id_rsa type 1
debug1: Checking blacklist file /usr/share/ssh/blacklist.RSA-2048
debug1: Checking blacklist file /etc/ssh/blacklist.RSA-2048
debug1: identity file /home/alexander/.ssh/id_rsa-cert type -1
debug1: identity file /home/alexander/.ssh/id_dsa type 2
debug1: Checking blacklist file /usr/share/ssh/blacklist.DSA-1024
debug1: Checking blacklist file /etc/ssh/blacklist.DSA-1024
debug1: identity file /home/alexander/.ssh/id_dsa-cert type -1
debug1: identity file /home/alexander/.ssh/id_ecdsa type -1
debug1: identity file /home/alexander/.ssh/id_ecdsa-cert type -1
debug1: Remote protocol version 2.0, remote software version dropbear_0.52
debug1: no match: dropbear_0.52
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_KEXDH_INIT
debug1: expecting SSH2_MSG_KEXDH_REPLY
debug1: Server host key: RSA XXXX
debug1: Host 'remote_host' is known and matches the RSA host key.
debug1: Found key in /home/alexander/.ssh/known_hosts:26
debug1: ssh_rsa_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: Offering DSA public key: /home/alexander/.ssh/id_dsa
debug1: Authentications that can continue: publickey,password
debug1: Offering RSA public key: /home/alexander/.ssh/id_rsa
debug1: Authentications that can continue: publickey,password
debug1: Trying private key: /home/alexander/.ssh/id_ecdsa
debug1: Next authentication method: password
user@remote_host's password: