SSH连接失败

Question

我正在尝试建立到DDWRT路由器的SSH连接。我遵循了在Ubuntu文档SSH/OpenSSH/Keys中生成密钥对的说明，但我无法连接。

ssh -vT <my router>的调试输出如下所示。

我很想知道问题出在哪里。(我已将公钥粘贴到DDWRT中。我可以使用连接，也可以使用iPod的iPod应用程序连接，但现在，在试图与Ubuntu打交道时，我希望也能进行类似的连接。)

martin@martin-Reserved:~$ ssh -vT 192.168.1.1
OpenSSH_5.9p1 Debian-5ubuntu1.4, 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 192.168.1.1 [192.168.1.1] port 22.
debug1: Connection established.
debug1: identity file /home/martin/.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/martin/.ssh/id_rsa-cert type -1
debug1: identity file /home/martin/.ssh/id_dsa type -1
debug1: identity file /home/martin/.ssh/id_dsa-cert type -1
debug1: identity file /home/martin/.ssh/id_ecdsa type -1
debug1: identity file /home/martin/.ssh/id_ecdsa-cert type -1
debug1: Remote protocol version 2.0, remote software version dropbear_0.52
debug1: no match: dropbear_0.52debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_5.9p1 Debian-5ubuntu1.4
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 49:bb:ab:82: (blocked out by me):46:2f:72
debug1: Host '192.168.1.1' is known and matches the RSA host key.
debug1: Found key in /home/martin/.ssh/known_hosts:1
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
DD-WRT v24-sp2 mini (c) 2009 NewMedia-NET GmbH
Release: 07/22/09 (SVN revision: 12548)
debug1: Authentications that can continue: publickey
debug1: Next authentication method: publickey
debug1: Offering RSA public key: /home/martin/.ssh/id_rsa
debug1: Authentications that can continue: publickey
debug1: Trying private key: /home/martin/.ssh/id_dsa
debug1: Trying private key: /home/martin/.ssh/id_ecdsa
debug1: No more authentication methods to try.
Permission denied (publickey).

Answer 1

默认情况下，如果未指定用户名，ssh (及相关工具)将尝试使用当前用户名。然而，DD-WRT路由器只有root用户，这是存储SSH密钥的地方。

您需要运行ssh root@192.168.1.1才能登录到路由器。