проблема
Я не могу подключиться к своему домашнему серверу через пароль SSH без входа в систему с моего клиентского компьютера/ удаленного компьютера через мой сервер ретрансляции.
Я получаю homeserver@localhost: Permission denied (publickey) .
История / процедура завершена
- Настройте домашний сервер (Kali Debian) за NAT, установите open-ssh, сгенерируйте ключи, отредактируйте файл sshd_config, чтобы запретить пароли.
- Настройте ретранслятор (AWS Ubuntu AMI), установите open-ssh, сгенерируйте ключи, отредактируйте файл sshd_config, чтобы запретить пароли.
- Настройте клиентский компьютер (Kali Debian работает на рабочей станции VMware), установите open-ssh, сгенерируйте ключи.
Изменены следующие разрешения для homeserver, relayserver и clientcomuter:
- Права доступа к каталогу .ssh до 700 (drwx ------)
- открытый ключ (файл .pub) для 644 (-rw-r - r--)
- закрытый ключ (id_rsa) до 600 (-rw -------)
- домашний каталог до 755 (drwxr-xr-x)
Затем я передал ключи аутентификации на сервер ретрансляции как с моего домашнего сервера, так и с клиентского компьютера и вошел в систему. Нет проблем.
Я добавил GewayPorts yes в файл ssshd_config на сервере ретрансляции.
Затем я выполнил следующие команды:
На домашнем сервере:
ssh -fN -R 10022:localhost:22 relayserver_user@1.1.1.1
На релейном сервере:
relayserver~$ sudo netstat -nap | grep 10022 - проверить соединение - вроде все хорошо:
На клиентском компьютере (после подключения к серверу ретрансляции):
ssh -p 10022 homeserver_user@localhost
Это где он сначала говорит неудачный ключ аутентификации. Не уверен, что происходит, потому что, когда я редактирую файл sshd_config на домашнем сервере для passwordauthentication yes аутентификации да, удаленный туннель работает без проблем.
Также, когда я пытаюсь выполнить команду во второй раз, она застревает в отладке (см. Ниже).
Обратите внимание, что я готовлю homeserver через teamviewer.
Свалки и бревна
Дамп от тестирования реле сервера:
tcp 0 0 0.0.0.0:10022 0.0.0.0:* LISTEN 2878/sshd: ubuntu
tcp6 0 0 :::10022 :::* LISTEN 2878/sshd: ubuntu
Дамп из -vvv во время clientcomputer при подключении к домашнему серверу после входа в сервер ретрансляции с 1-й попытки:
OpenSSH_7.6p1 Ubuntu-4, OpenSSL 1.0.2n 7 Dec 2017
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug2: resolving "localhost" port 10022
debug2: ssh_connect_direct: needpriv 0
debug1: Connecting to localhost [127.0.0.1] port 10022.
debug1: Connection established.
debug1: key_load_public: No such file or directory
debug1: identity file /home/ubuntu/.ssh/id_rsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/ubuntu/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/ubuntu/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/ubuntu/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/ubuntu/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/ubuntu/.ssh/id_ecdsa-cert type -1
debug1: identity file /home/ubuntu/.ssh/id_ed25519 type 3
debug1: key_load_public: No such file or directory
debug1: identity file /home/ubuntu/.ssh/id_ed25519-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_7.6p1 Ubuntu-4
debug1: Remote protocol version 2.0, remote software version OpenSSH_7.7p1 Debian-3
debug1: match: OpenSSH_7.7p1 Debian-3 pat OpenSSH* compat 0x04000000
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to localhost:10022 as 'homeserver'
debug3: put_host_port: [localhost]:10022
debug3: hostkeys_foreach: reading file "/home/ubuntu/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /home/ubuntu/.ssh/known_hosts:2
debug3: load_hostkeys: loaded 1 keys from [localhost]:10022
debug3: order_hostkeyalgs: prefer hostkeyalgs: ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,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,curve25519-sha256@libssh.org,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: ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519-cert-v01@openssh.com,ssh-rsa-cert-v01@openssh.com,ssh-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa
debug2: ciphers ctos: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com
debug2: ciphers stoc: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com
debug2: MACs ctos: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,zlib@openssh.com,zlib
debug2: compression stoc: none,zlib@openssh.com,zlib
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug2: peer server KEXINIT proposal
debug2: KEX algorithms: curve25519-sha256,curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1
debug2: host key algorithms: ssh-rsa,rsa-sha2-512,rsa-sha2-256,ecdsa-sha2-nistp256,ssh-ed25519
debug2: ciphers ctos: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com
debug2: ciphers stoc: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com
debug2: MACs ctos: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,zlib@openssh.com
debug2: compression stoc: none,zlib@openssh.com
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug1: kex: algorithm: curve25519-sha256
debug1: kex: host key algorithm: ecdsa-sha2-nistp256
debug1: kex: server->client cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug1: kex: client->server cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug3: send packet: type 30
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug3: receive packet: type 31
debug1: Server host key: ecdsa-sha2-nistp256 SHA256:yfx8V8nVyZNs0bF1IXLB5Ud5fF1iHYgp1+0dVwHqlx4
debug3: put_host_port: [127.0.0.1]:10022
debug3: put_host_port: [localhost]:10022
debug3: hostkeys_foreach: reading file "/home/ubuntu/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /home/ubuntu/.ssh/known_hosts:2
debug3: load_hostkeys: loaded 1 keys from [localhost]:10022
debug1: Host '[localhost]:10022' is known and matches the ECDSA host key.
debug1: Found key in /home/ubuntu/.ssh/known_hosts:2
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/ubuntu/.ssh/id_rsa ((nil))
debug2: key: /home/ubuntu/.ssh/id_dsa ((nil))
debug2: key: /home/ubuntu/.ssh/id_ecdsa ((nil))
debug2: key: /home/ubuntu/.ssh/id_ed25519 (0x56263b49fb50)
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
debug3: start over, passed a different list publickey
debug3: preferred gssapi-keyex,gssapi-with-mic,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/ubuntu/.ssh/id_rsa
debug3: no such identity: /home/ubuntu/.ssh/id_rsa: No such file or directory
debug1: Trying private key: /home/ubuntu/.ssh/id_dsa
debug3: no such identity: /home/ubuntu/.ssh/id_dsa: No such file or directory
debug1: Trying private key: /home/ubuntu/.ssh/id_ecdsa
debug3: no such identity: /home/ubuntu/.ssh/id_ecdsa: No such file or directory
debug1: Offering public key: ED25519 SHA256:AvsGsfq4sXyTubnuWOgb***********jVBPIyFEQ9/UY /home/ubuntu/.ssh/id_ed25519
debug3: send_pubkey_test
debug3: send packet: type 50
debug2: we sent a publickey packet, wait for reply
debug3: receive packet: type 60
debug1: Server accepts key: pkalg ssh-ed25519 blen 51
debug2: input_userauth_pk_ok: fp SHA256:AvsGsfq4sXyTubnuWOgbL**********FEQ9/UY
debug3: sign_and_send_pubkey: ED25519 SHA256:AvsGsfq4sXyT************
debug3: no such identity: /home/ubuntu/.ssh/id_ed25519: No such file or directory
debug2: we did not send a packet, disable method
debug1: No more authentication methods to try.
homeserver@localhost: Permission denied (publickey).
Дамп из -vvv во время clientcomputer при подключении к домашнему серверу после входа в сервер ретрансляции 2-й попытки:
OpenSSH_7.6p1 Ubuntu-4, OpenSSL 1.0.2n 7 Dec 2017
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug2: resolving "localhost" port 10022
debug2: ssh_connect_direct: needpriv 0
debug1: Connecting to localhost [127.0.0.1] port 10022.
debug1: Connection established.
debug1: key_load_public: No such file or directory
debug1: identity file /home/ubuntu/.ssh/id_rsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/ubuntu/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/ubuntu/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/ubuntu/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/ubuntu/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/ubuntu/.ssh/id_ecdsa-cert type -1
debug1: identity file /home/ubuntu/.ssh/id_ed25519 type 3
debug1: key_load_public: No such file or directory
debug1: identity file /home/ubuntu/.ssh/id_ed25519-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_7.6p1 Ubuntu-4
Я также попытался (безуспешно) создать ключ id_ed25519.pub на клиентском компьютере и добавить его в каталог /home/.ssh/ на сервере ретрансляции - как вы можете видеть в дампах (выше).
Дамп из grep 'sshd' /var/log/auth.log на домашний сервер:
Aug 14 06:04:48 homeserver-host sshd[3364]: /etc/ssh/sshd_config line 38: Deprecated option RSAAuthentication
Aug 14 06:04:49 homeserver-host sshd[3364]: reprocess config line 38: Deprecated option RSAAuthentication
Aug 14 06:04:49 homeserver-host sshd[3364]: Connection closed by authenticating user homeserver ::1 port 43536 [preauth]
Aug 14 06:26:34 homeserver-host sudo: homeserver : TTY=pts/0 ; PWD=/home/homeserver/.ssh ; USER=root ; COMMAND=/bin/grep sshd /var/log/auth.log
Aug 14 06:36:57 homeserver-host sudo: homeserver : TTY=pts/1 ; PWD=/etc/ssh ; USER=root ; COMMAND=/bin/nano sshd_config
Aug 14 06:38:44 homeserver-host sshd[5932]: Server listening on 0.0.0.0 port 22.
Aug 14 06:38:44 homeserver-host sshd[5932]: Server listening on :: port 22.
Aug 14 06:39:56 homeserver-host sshd[5975]: Connection closed by authenticating user homeserver ::1 port 43560 [preauth]
Aug 14 06:54:27 homeserver-host sudo: homeserver : TTY=pts/2 ; PWD=/home/homeserver ; USER=root ; COMMAND=/bin/nano /etc/ssh/sshd_config
Aug 14 10:37:13 homeserver-host sshd[5932]: Received SIGHUP; restarting.
Aug 14 10:37:13 homeserver-host sshd[5932]: Server listening on 0.0.0.0 port 22.
Aug 14 10:37:13 homeserver-host sshd[5932]: Server listening on :: port 22.
Aug 14 10:37:23 homeserver-host sshd[5932]: Received SIGHUP; restarting.
Aug 14 10:37:23 homeserver-host sshd[5932]: Server listening on 0.0.0.0 port 22.
Aug 14 10:37:23 homeserver-host sshd[5932]: Server listening on :: port 22.
Aug 14 13:31:19 homeserver-host sshd[5932]: Received SIGHUP; restarting.
Aug 14 13:31:19 homeserver-host sshd[5932]: Server listening on 0.0.0.0 port 22.
Aug 14 13:31:19 homeserver-host sshd[5932]: Server listening on :: port 22.
Aug 14 13:31:24 homeserver-host sshd[5932]: Received SIGHUP; restarting.
Aug 14 13:31:24 homeserver-host sshd[5932]: Server listening on 0.0.0.0 port 22.
Aug 14 13:31:24 homeserver-host sshd[5932]: Server listening on :: port 22.
Aug 14 13:43:02 homeserver-host sshd[5932]: Received SIGHUP; restarting.
Aug 14 13:43:02 homeserver-host sshd[5932]: Server listening on 0.0.0.0 port 22.
Aug 14 13:43:02 homeserver-host sshd[5932]: Server listening on :: port 22.
Aug 14 13:43:12 homeserver-host sshd[5932]: Received SIGHUP; restarting.
Aug 14 13:43:12 homeserver-host sshd[5932]: Server listening on 0.0.0.0 port 22.
Aug 14 13:43:12 homeserver-host sshd[5932]: Server listening on :: port 22.
Aug 14 16:30:03 homeserver-host sshd[5932]: Received signal 15; terminating.
Aug 14 23:00:27 homeserver-host sshd[3069]: Connection closed by authenticating user homeserver ::1 port 33912 [preauth]
Aug 14 23:45:51 homeserver-host sudo: homeserver : TTY=pts/0 ; PWD=/home/homeserver ; USER=root ; COMMAND=/bin/grep sshd /var/log/auth.log
Надеюсь, кто-то может помочь!