亚马逊网络服务 - 无法再连接到EC2 - 权限被拒绝(公钥) - 但昨天正在工作

Question

我已经在这里尝试了以前类似问题的所有答案。没有任何效果。

直到昨天，我还可以正常登录到我的EC2实例，但今天我不能，使用相同的密钥。服务器没有重新启动，正在使用相同的DNS。我已经尝试过使用IP或服务器地址。

我也试过了http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/TroubleshootingInstancesConnecting.html

这一切都是从我的mysql宕机开始的。我修复了登录，创建了一个备份，并试图通过SCP复制备份。但是开始获得拒绝的权限，比SSH也开始接收拒绝的权限。博客仍在运行，但我无法登录服务器，也无法复制备份文件。

使用命令：

ssh -vvv -i "key.pem" [e-mail]

我得到：

OpenSSH_6.2p2, OSSLShim 0.9.8r 8 Dec 2011
debug1: Reading configuration data /etc/ssh_config
debug1: /etc/ssh_config line 20: Applying options for *
debug2: ssh_connect: needpriv 0
debug1: Connecting to ec2-52-67-93-144.sa-east-1.compute.amazonaws.com [52.67.93.144] port 22.
debug1: Connection established.
debug3: Incorrect RSA1 identifier
debug3: Could not load "key.pem" as a RSA1 public key
debug1: identity file key.pem type -1
debug1: identity file key.pem-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_6.2
debug1: Remote protocol version 2.0, remote software version OpenSSH_6.6.1
debug1: match: OpenSSH_6.6.1 pat OpenSSH*
debug2: fd 3 setting O_NONBLOCK
debug3: load_hostkeys: loading entries for host "ec2-52-67-93-144.sa-east-1.compute.amazonaws.com" from file "/Users/pedroisrael/.ssh/known_hosts"
debug3: load_hostkeys: found key type RSA in file /Users/pedroisrael/.ssh/known_hosts:13
debug3: load_hostkeys: loaded 1 keys
debug3: order_hostkeyalgs: prefer hostkeyalgs: [e-mail],[e-mail],ssh-rsa
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug2: kex_parse_kexinit: diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
debug2: kex_parse_kexinit: [e-mail],[e-mail],ssh-rsa,[e-mail],[e-mail],ssh-dss
debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,[e-mail],[e-mail],aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,[e-mail]
debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,[e-mail],[e-mail],aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,[e-mail]
debug2: kex_parse_kexinit: [e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],hmac-md5,hmac-sha1,[e-mail],[e-mail],hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,[e-mail],hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: [e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],hmac-md5,hmac-sha1,[e-mail],[e-mail],hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,[e-mail],hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: none,[e-mail],zlib
debug2: kex_parse_kexinit: none,[e-mail],zlib
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: [e-mail],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,ssh-ed25519
debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,[e-mail],[e-mail],[e-mail],aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,[e-mail]
debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,[e-mail],[e-mail],[e-mail],aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,[e-mail]
debug2: kex_parse_kexinit: [e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],hmac-md5,hmac-sha1,[e-mail],[e-mail],hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,[e-mail],hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: [e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],hmac-md5,hmac-sha1,[e-mail],[e-mail],hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,[e-mail],hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: none,[e-mail]
debug2: kex_parse_kexinit: none,[e-mail]
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 [e-mail]
debug1: kex: server->client aes128-ctr [e-mail] none
debug2: mac_setup: found [e-mail]
debug1: kex: client->server aes128-ctr [e-mail] none
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP
debug2: dh_gen_key: priv key bits set: 128/256
debug2: bits set: 517/1024
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
debug1: Server host key: RSA 96:ba:5c:04:98:ea:b7:d3:0d:1f:d8:01:4c:23:d1:d6
debug3: load_hostkeys: loading entries for host "ec2-52-67-93-144.sa-east-1.compute.amazonaws.com" from file "/Users/pedroisrael/.ssh/known_hosts"
debug3: load_hostkeys: found key type RSA in file /Users/pedroisrael/.ssh/known_hosts:13
debug3: load_hostkeys: loaded 1 keys
debug3: load_hostkeys: loading entries for host "52.67.93.144" from file "/Users/pedroisrael/.ssh/known_hosts"
debug3: load_hostkeys: found key type RSA in file /Users/pedroisrael/.ssh/known_hosts:13
debug3: load_hostkeys: loaded 1 keys
debug1: Host 'ec2-52-67-93-144.sa-east-1.compute.amazonaws.com' is known and matches the RSA host key.
debug1: Found key in /Users/pedroisrael/.ssh/known_hosts:13
debug2: bits set: 509/1024
debug1: ssh_rsa_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: key.pem (0x0), explicit
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: key.pem
debug1: read PEM private key done: type RSA
debug3: sign_and_send_pubkey: RSA bb:c8:d5:38:c8:87:74:30:be:05:0c:8c:52:77:77:9c
debug2: we sent a publickey packet, wait for reply
debug1: Authentications that can continue: publickey
debug2: we did not send a packet, disable method
debug1: No more authentication methods to try.
Permission denied (publickey).

不知道如何进行！有人能帮忙吗？我的目标是再次正常连接到服务器。或者，如果需要，至少复制备份文件以创建一个新实例。

Answer 1

启动一个新实例，准备好所有东西（mysqld..）。停止旧实例，分离卷并将其附加到新实例。恢复备份。

这需要一些停机时间，但可能很短。如果您不确定分离/附加/装载过程，请先对其他一些实例进行尝试。