Ubuntu Amazon实例不再允许使用私钥登录

我已经经历了这么多这样的问题，但没有一个有效，但我也可以确定这是什么时候发生的，这样我就可以添加另一层的细节

大多数解决方案表明，询问者是：

使用不正确的键

用户名不正确。这是一个Ubuntu映像，我尝试了“Ubuntu”、“ec2用户”和我在机器上为自己创建的新用户名。没有工作；都是相同的错误消息

任何一个实例都建议尝试：

ssh-i kename.pemusername@host-vvv

，这是我过去一直采用的方式。。。。直到我重新整理了我的客户机。从那以后，我得到了附加的ssh跟踪

我已经尝试了第二级尝试，从我被锁定的服务器创建一个AMI，启动一个新实例，创建一个新密钥，并尝试登录到新实例。那里运气不好

所以，我的问题是：旧机器上是否有某种东西，可能是我的公钥或其他东西，我不再拥有，因此无法连接到任何实例？我的印象是，您只需要私钥进行身份验证。除了使用SSH协议登录机器之外，我对SSH协议的了解非常少，下面的跟踪似乎没有给我任何提示，说明这在哪里会发生故障，除了“debug1:服务器不允许漫游”，但这可能与此无关，而且我正在做比它更重要的事情

我希望这个问题的重新想象部分能为这个问题提供一些其他的线索

OpenSSH_5.9p1, OpenSSL 1.0.0e 6 Sep 2011 debug2: ssh_connect: needpriv 0 debug1: Connecting to **hostname** [**hostname**] port 22. debug1: Connection established. debug1: identity file /.ssh/id_rsa type -1 debug1: identity file /.ssh/id_rsa-cert type -1 debug1: identity file /.ssh/id_dsa type -1 debug1: identity file /.ssh/id_dsa-cert type -1 debug1: identity file /.ssh/id_ecdsa type -1 debug1: identity file /.ssh/id_ecdsa-cert type -1 debug1: Remote protocol version 2.0, remote software version OpenSSH_5.9p1 Debian-5ubuntu1.4 debug1: match: OpenSSH_5.9p1 Debian-5ubuntu1.4 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_5.9 debug2: fd 100 setting O_NONBLOCK debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug2: kex_parse_kexinit: ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1 debug2: kex_parse_kexinit: ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ssh-rsa-cert-v01@openssh.com,ssh-dss-cert-v01@openssh.com,ssh-rsa-cert-v00@openssh.com,ssh-dss-cert-v00@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-rsa,ssh-dss debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.se debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.se debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,umac-64@openssh.com,hmac-sha2-256,hmac-sha2-256-96,hmac-sha2-512,hmac-sha2-512-96,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,umac-64@openssh.com,hmac-sha2-256,hmac-sha2-256-96,hmac-sha2-512,hmac-sha2-512-96,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: zlib@openssh.com,zlib,none debug2: kex_parse_kexinit: zlib@openssh.com,zlib,none debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: first_kex_follows 0 debug2: kex_parse_kexinit: reserved 0 debug2: kex_parse_kexinit: ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1 debug2: kex_parse_kexinit: ssh-rsa,ssh-dss,ecdsa-sha2-nistp256 debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.se debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.se debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,umac-64@openssh.com,hmac-sha2-256,hmac-sha2-256-96,hmac-sha2-512,hmac-sha2-512-96,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,umac-64@openssh.com,hmac-sha2-256,hmac-sha2-256-96,hmac-sha2-512,hmac-sha2-512-96,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: none,zlib@openssh.com debug2: kex_parse_kexinit: none,zlib@openssh.com debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: first_kex_follows 0 debug2: kex_parse_kexinit: reserved 0 debug2: mac_setup: found hmac-md5 debug1: kex: server->client aes128-ctr hmac-md5 zlib@openssh.com debug2: mac_setup: found hmac-md5 debug1: kex: client->server aes128-ctr hmac-md5 zlib@openssh.com debug1: sending SSH2_MSG_KEX_ECDH_INIT debug1: expecting SSH2_MSG_KEX_ECDH_REPLY debug1: Server host key: ECDSA ea:b9:58:59:16:ff:cc:89:72:50:ab:f7:8f:40:ef:3b The authenticity of host '**hostname** (**hostname**)' can't be established. ECDSA key fingerprint is ea:b9:58:59:16:ff:cc:89:72:50:ab:f7:8f:40:ef:3b. Are you sure you want to continue connecting (yes/no)? yes Warning: Permanently added '**hostname**' (ECDSA) to the list of known hosts. debug1: ssh_ecdsa_verify: signature correct debug2: kex_derive_keys debug2: set_newkeys: mode 1 debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug2: set_newkeys: mode 0 debug1: SSH2_MSG_NEWKEYS received debug1: Roaming not allowed by server debug1: SSH2_MSG_SERVICE_REQUEST sent debug2: service_accept: ssh-userauth debug1: SSH2_MSG_SERVICE_ACCEPT received debug2: key: /.ssh/id_rsa (0x0) debug2: key: /.ssh/id_dsa (0x0) debug2: key: /.ssh/id_ecdsa (0x0) debug1: Authentications that can continue: publickey debug3: start over, passed a different list publickey debug3: preferred 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: /.ssh/id_rsa debug1: could not open key file '/.ssh/id_rsa': Invalid argument debug1: Trying private key: /.ssh/id_dsa debug1: could not open key file '/.ssh/id_dsa': Invalid argument debug1: Trying private key: /.ssh/id_ecdsa debug1: could not open key file '/.ssh/id_ecdsa': Invalid argument debug2: we did not send a packet, disable method debug1: No more authentication methods to try. Permission denied (publickey). OpenSSH_5.9p1、OpenSSL 1.0.0e 2011年9月6日 debug2:ssh\u connect:needpriv 0 debug1:连接到**主机名**[**主机名**]端口22。 debug1:已建立连接。 debug1:identity file/.ssh/id\u rsa类型-1 debug1:identity file/.ssh/id\u rsa-cert类型-1 debug1:identity file/.ssh/id_dsa类型-1 debug1:identity file/.ssh/id_dsa-cert类型-1 debug1:identity file/.ssh/id_ecdsa type-1 debug1:identity file/.ssh/id_ecdsa-cert type-1 debug1：远程协议版本2.0，远程软件版本OpenSSH_5.9p1 Debian-5ubuntu1.4 debug1:match:OpenSSH_5.9p1 Debian-5ubuntu1.4 pat OpenSSH* debug1:启用协议2.0的兼容模式 debug1:本地版本字符串SSH-2.0-OpenSSH_5.9 调试2:fd 100设置O_非块 debug1:SSH2\u MSG\u KEXINIT已发送 debug1:SSH2\u MSG\u KEXINIT已收到 debug2:kex_parse_kexinit:ecdh-sha2-nistp256，ecdh-sha2-nistp384，ecdh-sha2-nistp521，diffie-hellman-group-exchange-sha256，diffie-hellman-group-exchange-sha1，diffie-hellman-group14-sha1，diffie-hellman-group1-sha1 debug2:kex_parse_kexinit:ecdsa-sha2-nistp256-cert-v01@openssh.com，ecdsa-sha2-nistp384-cert-v01@openssh.com，ecdsa-sha2-nistp521-cert-v01@openssh.com，ssh rsa证书-v01@openssh.com，ssh-dss证书-v01@openssh.com，ssh rsa证书-v00@openssh.com，ssh-dss证书-v00@openssh.com，ecdsa-sha2-nistp256，ecdsa-sha2-nistp384，ecdsa-sha2-nistp521，ssh rsa，ssh dss debug2:kex_parse_kexinit:aes128 ctr、aes192 ctr、aes256 ctr、arcfour256、arcfour128、aes128 cbc、3des cbc、河豚cbc、cast128 cbc、aes192 cbc、aes256 cbc、arcfour、rijndael-cbc@lysator.liu.se debug2:kex_parse_kexinit:aes128 ctr、aes192 ctr、aes256 ctr、arcfour256、arcfour128、aes128 cbc、3des cbc、河豚cbc、cast128 cbc、aes192 cbc、aes256 cbc、arcfour、rijndael-cbc@lysator.liu.se debug2:kex_parse_kexinit:hmac-md5，hmac-sha1，umac-64@openssh.com，hmac-sha2-256，hmac-sha2-256-96，hmac-sha2-512，hmac-sha2-512-96，hmac-ripemd160，hmac-ripemd160@openssh.com，hmac-sha1-96，hmac-md5-96 debug2:kex_parse_kexinit:hmac-md5，hmac-sha1，umac-64@openssh.com，hmac-sha2-256，hmac-sha2-256-96，hmac-sha2-512，hmac-sha2-512-96，hmac-ripemd160，hmac-ripemd160@openssh.com，hmac-sha1-96，hmac-md5-96 debug2:kex_parse_kexinit:zlib@openssh.com，zlib，无 debug2:kex_parse_kexinit:zlib@openssh.com，zlib，无 debug2:kex_parse_kexinit: debug2:kex_parse_kexinit: debug2:kex_parse_kexinit:first_kex_跟随0 debug2:kex_parse_kexinit:保留0 debug2:kex_parse_kexinit:ecdh-sha2-nistp256，ecdh-sha2-nistp384，ecdh-sha2-nistp521，diffie-hellman-group-exchange-sha256，diffie-hellman-group-exchange-sha1，diffie-hellman-group14-sha1，diffie-hellman-group1-sha1 debug2:kex_parse_kexinit:ssh rsa，ssh dss，ecdsa-sha2-nistp256 debug2:kex_parse_kexinit:aes128 ctr、aes192 ctr、aes256 ctr、arcfour256、arcfour128、aes128 cbc、3des cbc、河豚cbc、cast128 cbc、aes192 cbc、aes256 cbc、arcfour、rijndael-cbc@lysator.liu.se debug2:kex_parse_kexinit:aes128 ctr、aes192 ctr、aes256 ctr、arcfour256、arcfour128、aes128 cbc、3des cbc、河豚cbc、cast128 cbc、aes192 cbc、aes256 cbc、arcfour、rijndael-cbc@lysator.liu.se debug2:kex_parse_kexinit:hmac-md5，hmac-sha1，umac-64@openssh.com，hmac-sha2-256，hmac-sha2-256-96，hmac-sha2-512，hmac-sha2-512-96，hmac-ripemd160，hmac-ripemd160@openssh.com，hmac-sha1-96，hmac-md5-96 debug2:kex_parse_kexinit:hmac-md5，hmac-sha1，umac-64@openssh.com，hmac-sha2-256，hmac-sha2-256-96，hmac-sha2-512，hmac-sha2-512-96，hmac-ripemd160，hmac-ripemd160@openssh.com，hmac-sha1-96，hmac-md5-96 debug2:kex_parse_kexinit:none，zlib@openssh.com debug2:kex_parse_kexinit:none，zlib@openssh.com debug2:kex_parse_kexinit: debug2:kex_parse_kexinit: debug2:kex_parse_kexinit:first_kex_跟随0 debug2:kex_parse_kexinit:保留0 debug2:mac_安装程序：找到hmac-md5 debug1:kex:server->client aes128 ctr hmac-md5zlib@openssh.com debug2:mac_安装程序：找到hmac-md5 debug1:kex:客户端->服务器aes128 ctr hmac-md5zlib@openssh.com debug1:发送SSH2\u MSG\u KEX\u ECDH\u INIT debug1:需要SSH2\u MSG\u KEX\u ECDH\u回复 debug1:服务器主机密钥：ECDSA ea:b9:58:59:16:ff:cc:89:72:50:ab:f7:8f:40:ef:3b 无法建立主机“**主机名**（**主机名**）”的真实性。 ECDSA密钥指纹是ea:b9:58:59:16:ff:cc:89:72:50:ab:f7:8f:40:ef:3b。 是否确实要继续连接（是/否）？对 警告：已将“**主机名**”（ECDSA）永久添加到已知主机列表中。 debug1:ssh\u ecdsa\u验证：签名正确 debug2:kex_派生_键 debug2:设置新键：模式