这是发生了什么事情：
ssh [email protected] password: something Connection closed 任何想法为什么发生这种情况
更新：
这是当我做ssh -vvv时会发生什么
name@server% ssh -vvv [email protected] OpenSSH_5.5p1, OpenSSL 0.9.8l 5 Nov 2009 debug1: Reading configuration data /opt/ssh/etc/ssh_config debug1: /opt/ssh/etc/ssh_config line 27: Deprecated option "RhostsAuthentication" debug2: ssh_connect: needpriv 0 debug1: Connecting to 10.1.1.231 [10.1.1.231] port 22. debug1: Connection established. debug1: could not open key file '/opt/ssh/etc/ssh_host_key': Permission denied debug1: could not open key file '/opt/ssh/etc/ssh_host_dsa_key': Permission denied debug1: could not open key file '/opt/ssh/etc/ssh_host_rsa_key': Permission denied debug1: identity file /home/name/.ssh/identity type -1 debug1: identity file /home/name/.ssh/identity-cert type -1 debug1: identity file /home/name/.ssh/id_rsa type -1 debug1: identity file /home/name/.ssh/id_rsa-cert type -1 debug1: identity file /home/name/.ssh/id_dsa type -1 debug1: identity file /home/name/.ssh/id_dsa-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_5.5 debug2: fd 5 setting O_NONBLOCK 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: [email protected],[email protected],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,[email protected] 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,[email protected] debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,[email protected],hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,[email protected],hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: none,[email protected],zlib debug2: kex_parse_kexinit: none,[email protected],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: diffie-hellman-group1-sha1 debug2: kex_parse_kexinit: ssh-rsa debug2: kex_parse_kexinit: aes128-ctr,3des-ctr,aes256-ctr,aes128-cbc,3des-cbc,aes256-cbc,twofish256-cbc,twofish-cbc,twofish128-cbc,blowfish-cbc debug2: kex_parse_kexinit: aes128-ctr,3des-ctr,aes256-ctr,aes128-cbc,3des-cbc,aes256-cbc,twofish256-cbc,twofish-cbc,twofish128-cbc,blowfish-cbc debug2: kex_parse_kexinit: hmac-sha1-96,hmac-sha1,hmac-md5 debug2: kex_parse_kexinit: hmac-sha1-96,hmac-sha1,hmac-md5 debug2: kex_parse_kexinit: none debug2: kex_parse_kexinit: none 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 none debug2: mac_setup: found hmac-md5 debug1: kex: client->server aes128-ctr hmac-md5 none debug2: dh_gen_key: priv key bits set: 125/256 debug2: bits set: 529/1024 debug1: sending SSH2_MSG_KEXDH_INIT debug1: expecting SSH2_MSG_KEXDH_REPLY debug3: check_host_in_hostfile: host 10.1.1.231 filename /home/name/.ssh/known_hosts2 debug3: check_host_in_hostfile: host 10.1.1.231 filename /home/name/.ssh/known_hosts2 debug3: check_host_in_hostfile: host 10.1.1.231 filename /opt/ssh/etc/ssh_known_hosts2 debug3: check_host_in_hostfile: host 10.1.1.231 filename /opt/ssh/etc/ssh_known_hosts2 debug3: check_host_in_hostfile: host 10.1.1.231 filename /home/name/.ssh/known_hosts debug3: check_host_in_hostfile: host 10.1.1.231 filename /home/name/.ssh/known_hosts debug3: check_host_in_hostfile: match line 18 debug1: Host '10.1.1.231' is known and matches the RSA host key. debug1: Found key in /home/name/.ssh/known_hosts:18 debug2: bits set: 507/1024 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: /home/name/.ssh/identity (0) debug2: key: /home/name/.ssh/id_rsa (0) debug2: key: /home/name/.ssh/id_dsa (0) debug1: Authentications that can continue: publickey,password debug3: start over, passed a different list publickey,password 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: /home/name/.ssh/identity debug3: no such identity: /home/name/.ssh/identity debug1: Trying private key: /home/name/.ssh/id_rsa debug3: no such identity: /home/name/.ssh/id_rsa debug1: Trying private key: /home/name/.ssh/id_dsa debug3: no such identity: /home/name/.ssh/id_dsa debug2: we did not send a packet, disable method debug3: authmethod_lookup password debug3: remaining preferred: ,password debug3: authmethod_is_enabled password debug1: Next authentication method: password [email protected]'s password: debug3: packet_send2: adding 64 (len 58 padlen 6 extra_pad 64) debug2: we sent a password packet, wait for reply Connection closed by 10.1.1.231
在连接期间运行ssh -vvv ，以便对发生的事情进行扩展logging。 我的直觉是，你有类似/ bin /真的一个shell，所以它会让你在默认情况下。
由于某种原因你的shell不能启动。 最有可能的罪魁祸首是完整的文件系统（如/ var / log）或实际shell的可执行文件（或它的configuration文件）的错误。
如果你有某种IPMI，你可以拉起控制台，看看是否有任何相关的数据？ 像这样的情况是iLO / DRAC / ILOM等带外pipe理系统的卖点。
权限问题将是我的第一个猜测…
debug1：build立连接。 debug1：无法打开密钥文件'/ opt / ssh / etc / ssh_host_key'：权限被拒绝debug1：无法打开密钥文件'/ opt / ssh / etc / ssh_host_dsa_key'：权限被拒绝debug1：无法打开密钥文件' / ssh / etc / ssh_host_rsa_key'：权限被拒绝