我经历了Azure虚拟机上的常规公钥对login序列。
我在客户端机器上将id_rsa.pub复制到在Azure上运行的LINUX vm上的〜/ .ssh / authorized_keys。 确保：
chmod 700 ~/.ssh (on server) chmod 500 ~/.ssh/authorized_keys (on server) chmod 700 ~/.ssh (on client) chmod 500 ~/.ssh/id_rsa (on client) 然而，当我尝试login到服务器时，我尝试连接时得到以下详细输出：
OpenSSH_7.3p1, LibreSSL 2.4.1 debug1: Reading configuration data /Users/johnsmith/.ssh/config debug1: /Users/johnsmith/.ssh/config line 5: Applying options for tmaa debug1: Reading configuration data /etc/ssh/ssh_config debug1: /etc/ssh/ssh_config line 20: Applying options for * debug1: /etc/ssh/ssh_config line 56: Applying options for * debug1: Connecting to 13.80.231.101 [13.80.231.101] port 22. debug1: Connection established. debug1: identity file /Users/johnsmith/.ssh/id_rsa type 1 debug1: key_load_public: No such file or directory debug1: identity file /Users/johnsmith/.ssh/id_rsa-cert type -1 debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_7.3 debug1: Remote protocol version 2.0, remote software version OpenSSH_6.6.1 debug1: match: OpenSSH_6.6.1 pat OpenSSH_6.6.1* compat 0x04000000 debug1: Authenticating to 13.80.231.101:22 as 'appliedai' debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: algorithm: [email protected] debug1: kex: host key algorithm: ecdsa-sha2-nistp256 debug1: kex: server->client cipher: [email protected] MAC: <implicit> compression: none debug1: kex: client->server cipher: [email protected] MAC: <implicit> compression: none debug1: expecting SSH2_MSG_KEX_ECDH_REPLY debug1: Server host key: ecdsa-sha2-nistp256 SHA256:2Me2OBl/WHx3/z3C2QtFqRf1Ra19O1ZPgHnSHcBR4eg debug1: Host '13.80.231.101' is known and matches the ECDSA host key. debug1: Found key in /Users/johnsmith/.ssh/known_hosts:45 debug1: rekey after 134217728 blocks debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: rekey after 134217728 blocks debug1: SSH2_MSG_NEWKEYS received debug1: SSH2_MSG_SERVICE_ACCEPT received debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic debug1: Next authentication method: publickey debug1: Offering RSA public key: /Users/johnsmith/.ssh/id_rsa debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic debug1: No more authentication methods to try. Permission denied (publickey,gssapi-keyex,gssapi-with-mic).
注1：我的客户端SSH安装程序适用于Amazon EC2实例。
注2：服务器上的我的SELinux文件标签是：
ls -Z .ssh .ssh/authroized_keys -rx------. appliedai appliedai unconfined_u:object_r:ssh_home_t:s0 .ssh/authroized_keys .ssh: -rx------. appliedai appliedai unconfined_u:object_r:ssh_home_t:s0 authroized_keys
注3，/ var / secure的尾部-f给了我一个增量行：
Feb 27 12:03:43 machinelearningmachine sshd[9807]: Connection closed by 142.255.111.222 [preauth]
注意4，我删除注释的sshdconfiguration看起来像：
cat /etc/ssh/sshd_config HostKey /etc/ssh/ssh_host_rsa_key HostKey /etc/ssh/ssh_host_ecdsa_key HostKey /etc/ssh/ssh_host_ed25519_key SyslogFacility AUTHPRIV AuthorizedKeysFile .ssh/authorized_keys PasswordAuthentication no ChallengeResponseAuthentication no GSSAPIAuthentication yes GSSAPICleanupCredentials no UsePAM yes X11Forwarding yes UsePrivilegeSeparation sandbox # Default for new installations. ClientAliveInterval 180 AcceptEnv LANG LC_CTYPE LC_NUMERIC LC_TIME LC_COLLATE LC_MONETARY LC_MESSAGES AcceptEnv LC_PAPER LC_NAME LC_ADDRESS LC_TELEPHONE LC_MEASUREMENT AcceptEnv LC_IDENTIFICATION LC_ALL LANGUAGE AcceptEnv XMODIFIERS Subsystem sftp /usr/libexec/openssh/sftp-server
注5：debugging级别如下：
Feb 27 12:25:17 mlm sshd[10027]: debug3: monitor_read: checking request 124 Feb 27 12:25:17 mlm sshd[10027]: debug3: mm_request_receive entering Feb 27 12:25:17 mlm sshd[10027]: debug3: monitor_read: checking request 122 Feb 27 12:25:17 mlm sshd[10027]: debug3: mm_request_send entering: type 123 Feb 27 12:25:17 mlm sshd[10027]: debug1: monitor_read_log: child log fd closed Feb 27 12:25:17 mlm sshd[10027]: debug3: mm_request_receive entering Feb 27 12:25:17 mlm sshd[10027]: debug1: do_cleanup Feb 27 12:25:17 mlm sshd[10027]: debug1: PAM: cleanup Feb 27 12:25:17 mlm sshd[10027]: debug3: PAM: sshpam_thread_cleanup entering Feb 27 12:25:17 mlm sshd[10027]: debug1: Killing privsep child 10028 Feb 27 12:25:29 mlm sshd[10003]: debug3: fd 5 is not O_NONBLOCK Feb 27 12:25:29 mlm sshd[10003]: debug1: Forked child 10031. Feb 27 12:25:29 mlm sshd[10003]: debug3: send_rexec_state: entering fd = 8 config len 780 Feb 27 12:25:29 mlm sshd[10003]: debug3: ssh_msg_send: type 0 Feb 27 12:25:29 mlm sshd[10003]: debug3: send_rexec_state: done Feb 27 12:25:29 mlm sshd[10031]: debug3: oom_adjust_restore Feb 27 12:25:29 mlm sshd[10031]: Set /proc/self/oom_score_adj to 0 Feb 27 12:25:29 mlm sshd[10031]: debug1: rexec start in 5 out 5 newsock 5 pipe 7 sock 8 Feb 27 12:25:29 mlm sshd[10031]: debug1: inetd sockets after dupping: 3, 3 Feb 27 12:25:29 mlm sshd[10031]: Connection from 142.255.93.140 port 64851 on 10.0.0.4 port 22 Feb 27 12:25:29 mlm sshd[10031]: debug1: Client protocol version 2.0; client software version OpenSSH_7.3 Feb 27 12:25:29 mlm sshd[10031]: debug1: match: OpenSSH_7.3 pat OpenSSH* compat 0x04000000 Feb 27 12:25:29 mlm sshd[10031]: debug1: Enabling compatibility mode for protocol 2.0 Feb 27 12:25:29 mlm sshd[10031]: debug1: Local version string SSH-2.0-OpenSSH_6.6.1 Feb 27 12:25:29 mlm sshd[10031]: debug2: fd 3 setting O_NONBLOCK Feb 27 12:25:29 mlm sshd[10031]: debug3: ssh_sandbox_init: preparing rlimit sandbox Feb 27 12:25:29 mlm sshd[10031]: debug2: Network child is on pid 10032 Feb 27 12:25:29 mlm sshd[10031]: debug3: preauth child monitor started Feb 27 12:25:29 mlm sshd[10031]: debug1: SELinux support enabled [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: ssh_selinux_change_context: setting context from 'system_u:system_r:sshd_t:s0-s0:c0.c1023' to 'system_u:system_r:sshd_net_t:s0-s0:c0.c1023' [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: privsep user:group 74:74 [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug1: permanently_set_uid: 74/74 [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug1: list_hostkey_types: ssh-rsa,ecdsa-sha2-nistp256,ssh-ed25519 [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug1: SSH2_MSG_KEXINIT sent [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug1: SSH2_MSG_KEXINIT received [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug2: kex_parse_kexinit: [email protected],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 [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug2: kex_parse_kexinit: ssh-rsa,ecdsa-sha2-nistp256,ssh-ed25519 [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,[email protected],[email protected],[email protected],aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,[email protected] [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,[email protected],[email protected],[email protected],aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,[email protected] [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug2: kex_parse_kexinit: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-md5,hmac-sha1,[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96 [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug2: kex_parse_kexinit: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-md5,hmac-sha1,[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96 [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug2: kex_parse_kexinit: none,[email protected] [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug2: kex_parse_kexinit: none,[email protected] [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug2: kex_parse_kexinit: [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug2: kex_parse_kexinit: [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug2: kex_parse_kexinit: first_kex_follows 0 [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug2: kex_parse_kexinit: reserved 0 [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug2: kex_parse_kexinit: [email protected],ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1,ext-info-c [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug2: kex_parse_kexinit: [email protected],[email protected],[email protected],ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,[email protected],[email protected],ssh-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug2: kex_parse_kexinit: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected],aes128-cbc,aes192-cbc,aes256-cbc,3des-cbc [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug2: kex_parse_kexinit: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected],aes128-cbc,aes192-cbc,aes256-cbc,3des-cbc [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug2: kex_parse_kexinit: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1 [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug2: kex_parse_kexinit: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1 [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug2: kex_parse_kexinit: none,[email protected],zlib [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug2: kex_parse_kexinit: none,[email protected],zlib [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug2: kex_parse_kexinit: [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug2: kex_parse_kexinit: [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug2: kex_parse_kexinit: first_kex_follows 0 [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug2: kex_parse_kexinit: reserved 0 [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug1: kex: client->server [email protected] <implicit> none [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug1: kex: server->client [email protected] <implicit> none [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug1: kex: [email protected] need=64 dh_need=64 [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_request_send entering: type 120 [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_request_receive_expect entering: type 121 [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_request_receive entering [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_request_receive entering Feb 27 12:25:29 mlm sshd[10031]: debug3: monitor_read: checking request 120 Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_request_send entering: type 121 Feb 27 12:25:29 mlm sshd[10031]: debug1: kex: [email protected] need=64 dh_need=64 [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_request_send entering: type 120 [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_request_receive_expect entering: type 121 [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_request_receive entering [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_request_receive entering Feb 27 12:25:29 mlm sshd[10031]: debug3: monitor_read: checking request 120 Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_request_send entering: type 121 Feb 27 12:25:29 mlm sshd[10031]: debug1: expecting SSH2_MSG_KEX_ECDH_INIT [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_key_sign entering [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_request_send entering: type 6 [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_key_sign: waiting for MONITOR_ANS_SIGN [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_request_receive_expect entering: type 7 [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_request_receive entering [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_request_receive entering Feb 27 12:25:29 mlm sshd[10031]: debug3: monitor_read: checking request 6 Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_answer_sign Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_answer_sign: signature 0x7f8d20faa430(100) Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_request_send entering: type 7 Feb 27 12:25:29 mlm sshd[10031]: debug2: monitor_read: 6 used once, disabling now Feb 27 12:25:29 mlm sshd[10031]: debug2: kex_derive_keys [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug2: set_newkeys: mode 1 [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug1: SSH2_MSG_NEWKEYS sent [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug1: expecting SSH2_MSG_NEWKEYS [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug2: set_newkeys: mode 0 [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug1: SSH2_MSG_NEWKEYS received [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug1: KEX done [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug1: userauth-request for user johnsmith service ssh-connection method none [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug1: attempt 0 failures 0 [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_getpwnamallow entering [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_request_send entering: type 8 [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_getpwnamallow: waiting for MONITOR_ANS_PWNAM [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_request_receive_expect entering: type 9 [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_request_receive entering [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_request_receive entering Feb 27 12:25:29 mlm sshd[10031]: debug3: monitor_read: checking request 8 Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_answer_pwnamallow Feb 27 12:25:29 mlm sshd[10031]: debug3: Trying to reverse map address 142.255.93.140. Feb 27 12:25:29 mlm sshd[10031]: debug2: parse_server_config: config reprocess config len 780 Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_answer_pwnamallow: sending MONITOR_ANS_PWNAM: 1 Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_request_send entering: type 9 Feb 27 12:25:29 mlm sshd[10031]: debug2: monitor_read: 8 used once, disabling now Feb 27 12:25:29 mlm sshd[10031]: debug2: input_userauth_request: setting up authctxt for johnsmith [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_start_pam entering [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_request_send entering: type 100 [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_inform_authserv entering [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_request_send entering: type 4 [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_inform_authrole entering [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_request_send entering: type 80 [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug2: input_userauth_request: try method none [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: userauth_finish: failure partial=0 next methods="publickey,gssapi-keyex,gssapi-with-mic" [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_request_receive entering Feb 27 12:25:29 mlm sshd[10031]: debug3: monitor_read: checking request 100 Feb 27 12:25:29 mlm sshd[10031]: debug1: PAM: initializing for "johnsmith" Feb 27 12:25:29 mlm sshd[10031]: debug1: PAM: setting PAM_RHOST to "cpe-142-255-93-140.nyc.res.rr.com" Feb 27 12:25:29 mlm sshd[10031]: debug1: PAM: setting PAM_TTY to "ssh" Feb 27 12:25:29 mlm sshd[10031]: debug2: monitor_read: 100 used once, disabling now Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_request_receive entering Feb 27 12:25:29 mlm sshd[10031]: debug3: monitor_read: checking request 4 Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_answer_authserv: service=ssh-connection, style= Feb 27 12:25:29 mlm sshd[10031]: debug2: monitor_read: 4 used once, disabling now Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_request_receive entering Feb 27 12:25:29 mlm sshd[10031]: debug3: monitor_read: checking request 80 Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_answer_authrole: role= Feb 27 12:25:29 mlm sshd[10031]: debug2: monitor_read: 80 used once, disabling now Feb 27 12:25:29 mlm sshd[10031]: debug1: userauth-request for user johnsmith service ssh-connection method publickey [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug1: attempt 1 failures 0 [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug2: input_userauth_request: try method publickey [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug1: test whether pkalg/pkblob are acceptable [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_key_allowed entering [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_request_send entering: type 22 [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_key_allowed: waiting for MONITOR_ANS_KEYALLOWED [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_request_receive_expect entering: type 23 [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_request_receive entering [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_request_receive entering Feb 27 12:25:29 mlm sshd[10031]: debug3: monitor_read: checking request 22 Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_answer_keyallowed entering Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_answer_keyallowed: key_from_blob: 0x7f8d20faa1d0 Feb 27 12:25:29 mlm sshd[10031]: debug1: temporarily_use_uid: 1002/1002 (e=0/0) Feb 27 12:25:29 mlm sshd[10031]: debug1: trying public key file /home/johnsmith/.ssh/authorized_keys Feb 27 12:25:29 mlm sshd[10031]: debug1: Could not open authorized keys '/home/johnsmith/.ssh/authorized_keys': No such file or directory Feb 27 12:25:29 mlm sshd[10031]: debug1: restore_uid: 0/0 Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_answer_keyallowed: key 0x7f8d20faa1d0 is not allowed Feb 27 12:25:29 mlm sshd[10031]: Failed publickey for johnsmith from 142.255.93.140 port 64851 ssh2: RSA 1c:88:ac:d5:45:94:9f:1c:f0:1f:88:55:c2:53:f6:16 Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_request_send entering: type 23 Feb 27 12:25:29 mlm sshd[10031]: debug2: userauth_pubkey: authenticated 0 pkalg ssh-rsa [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: userauth_finish: failure partial=0 next methods="publickey,gssapi-keyex,gssapi-with-mic" [preauth] Feb 27 12:25:29 mlm sshd[10031]: Connection closed by 142.255.93.140 [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug1: do_cleanup [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: PAM: sshpam_thread_cleanup entering [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_request_send entering: type 124 [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_request_send entering: type 122 [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_request_receive_expect entering: type 123 [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_request_receive entering [preauth] Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_request_receive entering Feb 27 12:25:29 mlm sshd[10031]: debug3: monitor_read: checking request 124 Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_request_receive entering Feb 27 12:25:29 mlm sshd[10031]: debug3: monitor_read: checking request 122 Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_request_send entering: type 123 Feb 27 12:25:29 mlm sshd[10031]: debug1: monitor_read_log: child log fd closed Feb 27 12:25:29 mlm sshd[10031]: debug3: mm_request_receive entering Feb 27 12:25:29 mlm sshd[10031]: debug1: do_cleanup Feb 27 12:25:29 mlm sshd[10031]: debug1: PAM: cleanup Feb 27 12:25:29 mlm sshd[10031]: debug3: PAM: sshpam_thread_cleanup entering Feb 27 12:25:29 mlm sshd[10031]: debug1: Killing privsep child 10032
我想现在的错误是显而易见的：
debug1: trying public key file /home/johnsmith/.ssh/authorized_keys debug1: Could not open authorized keys '/home/johnsmith/.ssh/authorized_keys': No such file or directory
由于某种原因，sshd期望find授权密钥的文件不在那里。 因此，无论您是作为不同的用户连接，还是使用不同的用户或类似的东西来写公钥。