我在 VirtualBox 中设置了一个路由器。我可以从控制台访问它，但它没有滚动缓冲区，我无法用鼠标选择。我正尝试以 root 身份通过 ssh 进入它。它使用 dropbear。
下面的输出：ssh [email protected] -vvv -o PreferredAuthentications=password -o PubkeyAuthentication=no
$ ssh [email protected] -vvv -o PreferredAuthentications=password -o PubkeyAuthentication=no
OpenSSH_7.6p1, OpenSSL 1.0.2k 26 Jan 2017
debug1: Reading configuration data /home/Chloe/.ssh/config
debug1: Reading configuration data /etc/ssh_config
debug2: resolving "192.168.1.1" port 22
debug2: ssh_connect_direct: needpriv 0
debug1: Connecting to 192.168.1.1 [192.168.1.1] port 22.
debug1: Connection established.
debug1: identity file /home/Chloe/.ssh/id_rsa type 0
debug1: key_load_public: No such file or directory
debug1: identity file /home/Chloe/.ssh/id_rsa-cert type -1
debug1: identity file /home/Chloe/.ssh/id_dsa type 1
debug1: key_load_public: No such file or directory
debug1: identity file /home/Chloe/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/Chloe/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/Chloe/.ssh/id_ecdsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/Chloe/.ssh/id_ed25519 type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/Chloe/.ssh/id_ed25519-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_7.6
debug1: Remote protocol version 2.0, remote software version OpenSSH_7.6
debug1: match: OpenSSH_7.6 pat OpenSSH* compat 0x04000000
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to 192.168.1.1:22 as 'root'
debug3: hostkeys_foreach: reading file "/home/Chloe/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /home/Chloe/.ssh/known_hosts:69
debug3: load_hostkeys: loaded 1 keys from 192.168.1.1
debug3: order_hostkeyalgs: prefer hostkeyalgs: [email protected],[email protected],[email protected],ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521
debug3: send packet: type 20
debug1: SSH2_MSG_KEXINIT sent
debug3: receive packet: type 20
debug1: SSH2_MSG_KEXINIT received
debug2: local client KEXINIT proposal
debug2: KEX algorithms: curve25519-sha256,[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
debug2: host key algorithms: [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
debug2: ciphers ctos: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected]
debug2: ciphers stoc: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected]
debug2: MACs ctos: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,[email protected],zlib
debug2: compression stoc: none,[email protected],zlib
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug2: peer server KEXINIT proposal
debug2: KEX algorithms: diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1
debug2: host key algorithms: ssh-rsa,rsa-sha2-512,rsa-sha2-256,ecdsa-sha2-nistp256,ssh-ed25519
debug2: ciphers ctos: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected]
debug2: ciphers stoc: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected]
debug2: MACs ctos: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,[email protected]
debug2: compression stoc: none,[email protected]
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug1: kex: algorithm: diffie-hellman-group-exchange-sha1
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
debug3: send packet: type 34
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(2048<8192<8192) sent
debug3: receive packet: type 31
debug1: got SSH2_MSG_KEX_DH_GEX_GROUP
debug2: bits set: 4152/8192
debug3: send packet: type 32
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug3: receive packet: type 33
debug1: got SSH2_MSG_KEX_DH_GEX_REPLY
debug1: Server host key: ecdsa-sha2-nistp256 SHA256:NbAuswB0VwGSup8zY59jN2Alouq1Kl37PiEENXhAuPU
debug3: hostkeys_foreach: reading file "/home/Chloe/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /home/Chloe/.ssh/known_hosts:69
debug3: load_hostkeys: loaded 1 keys from 192.168.1.1
debug1: Host '192.168.1.1' is known and matches the ECDSA host key.
debug1: Found key in /home/Chloe/.ssh/known_hosts:69
debug2: bits set: 4116/8192
debug3: send packet: type 21
debug2: set_newkeys: mode 1
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug3: receive packet: type 21
debug1: SSH2_MSG_NEWKEYS received
debug2: set_newkeys: mode 0
debug1: rekey after 134217728 blocks
debug2: key: /home/Chloe/.ssh/id_rsa (0x80059a48)
debug1: Skipping ssh-dss key /home/Chloe/.ssh/id_dsa - not in PubkeyAcceptedKeyTypes
debug2: key: /home/Chloe/.ssh/id_ecdsa (0x0)
debug2: key: /home/Chloe/.ssh/id_ed25519 (0x0)
debug3: send packet: type 5
debug3: receive packet: type 7
debug1: SSH2_MSG_EXT_INFO received
debug1: kex_input_ext_info: server-sig-algs=<ssh-ed25519,ssh-rsa,rsa-sha2-256,rsa-sha2-512,ssh-dss,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521>
debug3: receive packet: type 6
debug2: service_accept: ssh-userauth
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug3: send packet: type 50
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey,password,keyboard-interactive
debug3: start over, passed a different list publickey,password,keyboard-interactive
debug3: preferred password
debug3: authmethod_lookup password
debug3: remaining preferred:
debug3: authmethod_is_enabled password
debug1: Next authentication method: password
[email protected]'s password:
debug3: send packet: type 50
debug2: we sent a password packet, wait for reply
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey,password,keyboard-interactive
Permission denied, please try again.
[email protected]'s password:
debug3: send packet: type 50
debug2: we sent a password packet, wait for reply
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey,password,keyboard-interactive
Permission denied, please try again.
[email protected]'s password:
Vagrantfile
config.vm.network "public_network"
config.vm.network "private_network", ip: "192.168.1.1"
vagrant up
==> default: Preparing network interfaces based on configuration...
default: Adapter 1: nat
default: Adapter 2: bridged
default: Adapter 3: hostonly
==> default: Forwarding ports...
default: 22 (guest) => 2222 (host) (adapter 1)
==> default: Running 'pre-boot' VM customizations...
==> default: Booting VM...
==> default: Waiting for machine to boot. This may take a few minutes...
default: SSH address: 127.0.0.1:2222
default: SSH username: vagrant
default: SSH auth method: private key
Timed out while waiting for the machine to boot. This means that
我确实验证了 root 密码是正确的。
当我尝试通过 Vagrant 创建的 NAT 适配器登录时：
$ ssh [email protected] -p 2222 -o PreferredAuthentications=password -o PubkeyAuthentication=no
ssh_exchange_identification: read: Connection reset by peer
没有sshd或dropbear登录/var/logs。
我尝试运行 dropbear 并记录输出，但它没有输出任何内容。
$ ssh [email protected] -p 22
[email protected]'s password:
Permission denied, please try again.
这是iptables --list
我关闭了本地 Cygwin SSHD，现在ssh: connect to host 192.168.1.1 port 22: Connection refused即使我的主机有 10.0.0.* IP 地址，我也能访问！所以我只能用它访问，但[email protected] -p 2222会出现错误。
我删除了 2 个 iptable 规则，但没有帮助。同样的 ssh_exchange_identification”错误。
这是我的/etc/config/dropbear文件：
VirutalBox 版本 5.2.4 r119785 (Qt5.6.2
答案1
dropbear 的默认配置不允许从 WAN 接口使用密码进行 SSH。
从上面的输出来看，您正在使用 virtualbox NAT 接口，所以这是预料之中的。
查看/etc/config/dropbear路由器以确认并更改默认设置
config dropbear
option PasswordAuth 'on'
option Port '22'
option Interface 'lan'
config dropbear
**option PasswordAuth 'off'**
option Interface 'wan'
option Port '2022'
还验证
选项 RootPasswordAuth ‘on’ 选项 RootLogin ‘on’
如果必要的话，或者至少排除
选项 RootPasswordAuth 'off' 选项 RootLogin 'off'
这些选项默认为 true