ssh 公钥认证只有 root 成功,其他用户却没法公钥认证,请问这可能是什么情况啊?
XyCinus · 2015-10-31 23:51:44 +08:00 · 12703 次点击这是一个创建于 3318 天前的主题，其中的信息可能已经有所发展或是发生改变。
是有除了在~/.ssh/authoried_keys 文件里面加入公钥以外还要在/etc/ssh/ 下的某个配置文件里面写入那些账户是能使用公钥认证的吗?
主机是腾讯云上的 Centos6 x86_64
麻烦大家帮忙分析一下,谢谢
 |
1
c742435 2015-11-01 00:39:44 +08:00
你是不是都加在 root 的~/.ssh/authoried_keys 目录下了
每个账户的~是不同目录 还有就是确保该账户能读取这个文件 |
 |
3
XyCinus OP @c742435 我在需要使用公钥认证的账户里面都加入了公钥.
@ryd994 现在我的.ssh 是 500,authorized_keys 是 600 我贴一下 ssh -vv 的结果: OpenSSH_6.7p1 Debian-5, OpenSSL 1.0.1k 8 Jan 2015 debug1: Reading configuration data /home/cxy/.ssh/config debug1: /home/cxy/.ssh/config line 1: Applying options for TX debug1: Reading configuration data /etc/ssh/ssh_config debug1: /etc/ssh/ssh_config line 19: Applying options for * debug1: Hostname has changed; re-reading configuration debug1: Reading configuration data /home/cxy/.ssh/config debug1: Reading configuration data /etc/ssh/ssh_config debug1: /etc/ssh/ssh_config line 19: Applying options for * debug2: ssh_connect: needpriv 0 debug1: Connecting to 182.254.209.40 [182.254.209.40] port 2200. debug1: Connection established. debug1: identity file /home/cxy/.ssh/id_rsa type 1 debug1: key_load_public: No such file or directory debug1: identity file /home/cxy/.ssh/id_rsa-cert type -1 debug1: key_load_public: No such file or directory debug1: identity file /home/cxy/.ssh/id_dsa type -1 debug1: key_load_public: No such file or directory debug1: identity file /home/cxy/.ssh/id_dsa-cert type -1 debug1: key_load_public: No such file or directory debug1: identity file /home/cxy/.ssh/id_ecdsa type -1 debug1: key_load_public: No such file or directory debug1: identity file /home/cxy/.ssh/id_ecdsa-cert type -1 debug1: key_load_public: No such file or directory debug1: identity file /home/cxy/.ssh/id_ed25519 type -1 debug1: key_load_public: No such file or directory debug1: identity file /home/cxy/.ssh/id_ed25519-cert type -1 debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_6.7p1 Debian-5 debug1: Remote protocol version 2.0, remote software version OpenSSH_5.3 debug1: match: OpenSSH_5.3 pat OpenSSH_5* compat 0x0c000000 debug2: fd 3 setting O_NONBLOCK debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug2: kex_parse_kexinit: [email protected],ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1 debug2: kex_parse_kexinit: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519,ssh-rsa,ssh-dss debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected],[email protected],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,[email protected],[email protected],[email protected],arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,[email protected] 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,[email protected],[email protected],[email protected],[email protected],hmac-md5,hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96 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,[email protected],[email protected],[email protected],[email protected],hmac-md5,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-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1 debug2: kex_parse_kexinit: 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-sha2-256,hmac-sha2-512,hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,[email protected],hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: none,[email protected] debug2: kex_parse_kexinit: none,[email protected] 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: setup [email protected] debug1: kex: server->client aes128-ctr [email protected] none debug2: mac_setup: setup [email protected] debug1: kex: client->server aes128-ctr [email protected] none debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<3072<8192) sent debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP debug2: bits set: 1547/3072 debug1: SSH2_MSG_KEX_DH_GEX_INIT sent debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY debug1: Server host key: RSA 90:c1:b4:87:e3:29:df:bd:1e:f6:42:8a:89:b7:86:01 debug1: checking without port identifier debug1: Host '182.254.209.40' is known and matches the RSA host key. debug1: Found key in /home/cxy/.ssh/known_hosts:16 debug1: found matching key w/out port debug2: bits set: 1504/3072 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/cxy/.ssh/id_rsa (0x7fdb50042e60), debug2: key: /home/cxy/.ssh/id_dsa ((nil)), debug2: key: /home/cxy/.ssh/id_ecdsa ((nil)), debug2: key: /home/cxy/.ssh/id_ed25519 ((nil)), debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password debug1: Next authentication method: gssapi-keyex debug1: No valid Key exchange context debug2: we did not send a packet, disable method debug1: Next authentication method: gssapi-with-mic debug1: Unspecified GSS failure. Minor code may provide more information No Kerberos credentials available debug1: Unspecified GSS failure. Minor code may provide more information No Kerberos credentials available debug1: Unspecified GSS failure. Minor code may provide more information debug1: Unspecified GSS failure. Minor code may provide more information No Kerberos credentials available debug2: we did not send a packet, disable method debug1: Next authentication method: publickey debug1: Offering RSA public key: /home/cxy/.ssh/id_rsa debug2: we sent a publickey packet, wait for reply debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password debug1: Trying private key: /home/cxy/.ssh/id_dsa debug1: Trying private key: /home/cxy/.ssh/id_ecdsa debug1: Trying private key: /home/cxy/.ssh/id_ed25519 debug2: we did not send a packet, disable method debug1: Next authentication method: password |
 |
4
ryd994 2015-11-01 09:10:19 +08:00
你要贴 sshd 的日志啊， ssh 的不会说原因的
|
|
5
XyCinus OP @ryd994 这个是 /var/log/secure 文件的信息.不知道是不是这个,但是这个信息更少,只有一条密码错误和密码正确
Nov 1 09:22:43 localhost sshd[2242]: Connection closed by 113.140.84.101 Nov 1 09:23:00 localhost sshd[2243]: Failed password for cxy from 113.140.28.66 port 16310 ssh2 Nov 1 09:23:06 localhost sshd[2243]: Accepted password for cxy from 113.140.28.66 port 16310 ssh2 Nov 1 09:23:50 localhost sudo: cxy : TTY=pts/1 ; PWD=/home/cxy ; USER=root ; COMMAND=/usr/bin/tail -F /var/log/secure-20151101 Nov 1 09:24:23 localhost sudo: cxy : TTY=pts/1 ; PWD=/home/cxy ; USER=root ; COMMAND=/bin/cat /var/log/secure Nov 1 09:26:10 localhost sudo: cxy : TTY=pts/2 ; PWD=/home/cxy ; USER=root ; COMMAND=/bin/cat /var/log/secure /var/log/secure-20151022 /var/log/secure-20151025 /var/log/secure-20151101 Nov 1 09:27:01 localhost sudo: cxy : TTY=pts/2 ; PWD=/home/cxy ; USER=root ; COMMAND=/bin/cat /var/log/secure-20151101 Nov 1 09:29:02 localhost sudo: cxy : TTY=pts/2 ; PWD=/home/cxy ; USER=root ; COMMAND=/sbin/service sshd restart Nov 1 09:29:02 localhost sshd[1019]: Received signal 15; terminating. |
 |
6
Bardon 2015-11-01 10:20:49 +08:00
看不出结果
ssh xxx@xxx -vvv 结果，贴出 debug3 的日志 |
|
7
Bardon 2015-11-01 10:25:04 +08:00
或者，服务端 sshd_config 中加入
AllowUsers username |
|
8
Bardon 2015-11-01 10:39:56 +08:00
debug1: identity file /home/cxy/.ssh/id_rsa type 1
debug1: key_load_public: No such file or directory ...... |
|
9
XyCinus OP @Bardon 在我本机是有 home/cxy/.ssh/id_rsa 的.远端上也有 publuc key , root 和普通用户的家目录都有,因为 root 是能够使用公钥登录的.
一下是 ssh -vvv 的信息: OpenSSH_6.7p1 Debian-5, OpenSSL 1.0.1k 8 Jan 2015 debug1: Reading configuration data /home/cxy/.ssh/config debug1: /home/cxy/.ssh/config line 1: Applying options for TX debug1: Reading configuration data /etc/ssh/ssh_config debug1: /etc/ssh/ssh_config line 19: Applying options for * debug1: Hostname has changed; re-reading configuration debug1: Reading configuration data /home/cxy/.ssh/config debug1: Reading configuration data /etc/ssh/ssh_config debug1: /etc/ssh/ssh_config line 19: Applying options for * debug2: ssh_connect: needpriv 0 debug1: Connecting to 182.254.209.40 [182.254.209.40] port 2200. debug1: Connection established. debug1: identity file /home/cxy/.ssh/id_rsa type 1 debug1: key_load_public: No such file or directory debug1: identity file /home/cxy/.ssh/id_rsa-cert type -1 debug1: key_load_public: No such file or directory debug1: identity file /home/cxy/.ssh/id_dsa type -1 debug1: key_load_public: No such file or directory debug1: identity file /home/cxy/.ssh/id_dsa-cert type -1 debug1: key_load_public: No such file or directory debug1: identity file /home/cxy/.ssh/id_ecdsa type -1 debug1: key_load_public: No such file or directory debug1: identity file /home/cxy/.ssh/id_ecdsa-cert type -1 debug1: key_load_public: No such file or directory debug1: identity file /home/cxy/.ssh/id_ed25519 type -1 debug1: key_load_public: No such file or directory debug1: identity file /home/cxy/.ssh/id_ed25519-cert type -1 debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_6.7p1 Debian-5 debug1: Remote protocol version 2.0, remote software version OpenSSH_5.3 debug1: match: OpenSSH_5.3 pat OpenSSH_5* compat 0x0c000000 debug2: fd 3 setting O_NONBLOCK debug3: put_host_port: [182.254.209.40]:2200 debug3: load_hostkeys: loading entries for host "[182.254.209.40]:2200" from file "/home/cxy/.ssh/known_hosts" debug3: load_hostkeys: found key type RSA in file /home/cxy/.ssh/known_hosts:1 debug3: load_hostkeys: loaded 1 keys debug3: order_hostkeyalgs: prefer hostkeyalgs: [email protected],[email protected],ssh-rsa debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug2: kex_parse_kexinit: [email protected],ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1 debug2: kex_parse_kexinit: [email protected],[email protected],ssh-rsa,[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519,ssh-dss debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected],[email protected],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,[email protected],[email protected],[email protected],arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,[email protected] 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,[email protected],[email protected],[email protected],[email protected],hmac-md5,hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96 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,[email protected],[email protected],[email protected],[email protected],hmac-md5,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-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1 debug2: kex_parse_kexinit: 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-sha2-256,hmac-sha2-512,hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,[email protected],hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: none,[email protected] debug2: kex_parse_kexinit: none,[email protected] 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: setup [email protected] debug1: kex: server->client aes128-ctr [email protected] none debug2: mac_setup: setup [email protected] debug1: kex: client->server aes128-ctr [email protected] none debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<3072<8192) sent debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP debug2: bits set: 1563/3072 debug1: SSH2_MSG_KEX_DH_GEX_INIT sent debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY debug1: Server host key: RSA 90:c1:b4:87:e3:29:df:bd:1e:f6:42:8a:89:b7:86:01 debug3: put_host_port: [182.254.209.40]:2200 debug3: put_host_port: [182.254.209.40]:2200 debug3: load_hostkeys: loading entries for host "[182.254.209.40]:2200" from file "/home/cxy/.ssh/known_hosts" debug3: load_hostkeys: found key type RSA in file /home/cxy/.ssh/known_hosts:1 debug3: load_hostkeys: loaded 1 keys debug3: load_hostkeys: loading entries for host "[182.254.209.40]:2200" from file "/home/cxy/.ssh/known_hosts" debug3: load_hostkeys: found key type RSA in file /home/cxy/.ssh/known_hosts:1 debug3: load_hostkeys: loaded 1 keys debug1: Host '[182.254.209.40]:2200' is known and matches the RSA host key. debug1: Found key in /home/cxy/.ssh/known_hosts:1 debug2: bits set: 1548/3072 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/cxy/.ssh/id_rsa (0x7f353b34b1c0), debug2: key: /home/cxy/.ssh/id_dsa ((nil)), debug2: key: /home/cxy/.ssh/id_ecdsa ((nil)), debug2: key: /home/cxy/.ssh/id_ed25519 ((nil)), debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password debug3: start over, passed a different list publickey,gssapi-keyex,gssapi-with-mic,password debug3: preferred gssapi-keyex,gssapi-with-mic,publickey,keyboard-interactive,password debug3: authmethod_lookup gssapi-keyex debug3: remaining preferred: gssapi-with-mic,publickey,keyboard-interactive,password debug3: authmethod_is_enabled gssapi-keyex debug1: Next authentication method: gssapi-keyex debug1: No valid Key exchange context debug2: we did not send a packet, disable method debug3: authmethod_lookup gssapi-with-mic debug3: remaining preferred: publickey,keyboard-interactive,password debug3: authmethod_is_enabled gssapi-with-mic debug1: Next authentication method: gssapi-with-mic debug1: Unspecified GSS failure. Minor code may provide more information No Kerberos credentials available debug1: Unspecified GSS failure. Minor code may provide more information No Kerberos credentials available debug1: Unspecified GSS failure. Minor code may provide more information debug1: Unspecified GSS failure. Minor code may provide more information No Kerberos credentials available debug2: we did not send a packet, disable method debug3: authmethod_lookup publickey debug3: remaining preferred: keyboard-interactive,password debug3: authmethod_is_enabled publickey debug1: Next authentication method: publickey debug1: Offering RSA public key: /home/cxy/.ssh/id_rsa debug3: send_pubkey_test debug2: we sent a publickey packet, wait for reply debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password debug1: Trying private key: /home/cxy/.ssh/id_dsa debug3: no such identity: /home/cxy/.ssh/id_dsa: No such file or directory debug1: Trying private key: /home/cxy/.ssh/id_ecdsa debug3: no such identity: /home/cxy/.ssh/id_ecdsa: No such file or directory debug1: Trying private key: /home/cxy/.ssh/id_ed25519 debug3: no such identity: /home/cxy/.ssh/id_ed25519: No such file or directory 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 |
|
10
XyCinus OP @Bardon @c742435 @ryd994 谢谢大家,问题已经解决了
昨天没法使用公钥认证的问题是.ssh 目录的权限是 770 然而我一直没有找到问题所在,在 sshd_config 里面将这一项: AuthorizedKeysFile .ssh/authorized_keys 修改为了 AuthorizedKeysFile ~/.ssh/authorized_keys 所以在今天我修改权限以后,sshd 一直找不到该文件,今天看到了 将其该回来了,于是就能够公钥认证了. 我认为是在还没有登录以前 HOME 变量是不存在的,所以找不到~/.ssh/authorized_keys 是我脑子抽了,谢谢大家 |
 |
11
LazyZhu 2015-11-01 12:08:23 +08:00
现在默认参数是:
AuthorizedKeysFile %h/.ssh/authorized_keys |
Select Language