пропала авторизация по ключу ssh

[Zeka13]

Делал авторизацию на сервере по ключу ssh как в инструкции
http://www.opennet.ru/base/sec/ssh_pubkey_auth.txt.html
всё работало, но в один день взяло и перестало, и я не знаю почему

конфиг:

(Нажмите, чтобы показать/скрыть)

RSAAuthentication yes
PubkeyAuthentication yes
#AuthorizedKeysFile     %h/.ssh/authorized_keys

Удалил .ssh у себя и на сервере, проделал всё заново - просит пароль!
-i не помогает

Решил попробовать на другом компе:
установил ssh сервер, сделал авторацию по ключу и всё нормально проходит, а вот на нужном сервере не хочет!

PS единственное отличие - на проблемном сервере используется нестандартный порт

Куда копать!? Заранее спасибо!

[ArcFi]

https://help.ubuntu.ru/wiki/ssh#%D0%BD%D0%B0%D1%81%D1%82%D1%80%D0%BE%D0%B9%D0%BA%D0%B0_ssh-%D0%BA%D0%BB%D0%B8%D0%B5%D0%BD%D1%82%D0%B0

[Zeka13]

лучше не стало

(Нажмите, чтобы показать/скрыть)

zeka13@Zond:~$ ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/home/zeka13/.ssh/id_rsa): .ssh/server_id_rsa
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in .ssh/server_id_rsa.
Your public key has been saved in .ssh/server_id_rsa.pub.
zeka13@Zond:~$ ssh-copy-id -i ~/.ssh/server_id_rsa zeka@188.134.91.230 -p 1026
zeka@188.134.91.230's password:
Now try logging into the machine, with "ssh 'zeka@188.134.91.230'", and check in:

  ~/.ssh/authorized_keys

to make sure we haven't added extra keys that you weren't expecting.

zeka13@Zond:~$ ssh zeka@188.134.91.230 -p 1026
zeka@188.134.91.230's password:

в authorized_keys ничего не появилось на сервере

[ArcFi]

Zeka13, обратите внимание на расстановку кавычек для ssh-copy-id.
Этот момент важен.

[Zeka13]

zeka13@Zond:~$ ssh-copy-id -i .ssh/server_id_rsa -p 1026 zeka@188.134.91.230
Bad port 'umask 077; test -d ~/.ssh || mkdir ~/.ssh ; cat >> ~/.ssh/authorized_keys'

[ArcFi]

Так, ещё раз...
Задаём значения переменных IDENTITY, SSH_PORT, SSH_USER, SSH_HOST и выполняем команду:

Код: [Выделить]

ssh-copy-id -i "$IDENTITY" "-p $SSH_PORT $SSH_USER@$SSH_HOST"

[Zeka13]

просит пароль

(Нажмите, чтобы показать/скрыть)

zeka13@Zond:~$ IDENTITY=".ssh/server_id_rsa"
zeka13@Zond:~$ SSH_PORT=1026
zeka13@Zond:~$ SSH_USER=zeka
zeka13@Zond:~$ SSH_HOST=188.134.91.230
zeka13@Zond:~$ ssh-copy-id -i "$IDENTITY" "-p $SSH_PORT $SSH_USER@$SSH_HOST"
zeka@188.134.91.230's password:
Now try logging into the machine, with "ssh '-p 1026 zeka@188.134.91.230'", and check in:

  ~/.ssh/authorized_keys

to make sure we haven't added extra keys that you weren't expecting.

zeka13@Zond:~$ ssh -p 1026 zeka@188.134.91.230
zeka@188.134.91.230's password:

[Saltty]

Попробуйте при подключении использовать ключ v, vv или vvv возможно это поможет разобраться в проблеме

Код: [Выделить]

ssh -v hostname

[ArcFi]

Zeka13,
1) IDENTITY=id_rsa.pub
2) ~/.ssh удалённом хосте лучше грохнуть, и повторить ssh-copy-id, чтобы избежать ошибок с правами доступа.
3) бывают случаи, когда автоматическое обнаружение ключа не работает и при коннекте по ssh его надо указывать явно

[Zeka13]

Добавил .pub

(Нажмите, чтобы показать/скрыть)

zeka13@Zond:~$ IDENTITY=".ssh/server_id_rsa.pub"
zeka13@Zond:~$ SSH_PORT=1026
zeka13@Zond:~$ SSH_USER=zeka
zeka13@Zond:~$ SSH_HOST=188.134.91.230
zeka13@Zond:~$ ssh-copy-id -i "$IDENTITY" "-p $SSH_PORT $SSH_USER@$SSH_HOST"
zeka@188.134.91.230's password:
Now try logging into the machine, with "ssh '-p 1026 zeka@188.134.91.230'", and check in:

  ~/.ssh/authorized_keys

to make sure we haven't added extra keys that you weren't expecting.

zeka13@Zond:~$ ssh -p 1026 zeka@188.134.91.230
zeka@188.134.91.230's password:

Пользователь решил продолжить мысль 07 Октября 2012, 16:44:59:лог

(Нажмите, чтобы показать/скрыть)

zeka13@Zond:~$ ssh -i .ssh/server_id_rsa -v -p 1026 zeka@188.134.91.230
OpenSSH_5.8p1 Debian-7ubuntu1, OpenSSL 1.0.0e 6 Sep 2011
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug1: Connecting to 188.134.91.230 [188.134.91.230] port 1026.
debug1: Connection established.
debug1: identity file .ssh/server_id_rsa type 1
debug1: Checking blacklist file /usr/share/ssh/blacklist.RSA-2048
debug1: Checking blacklist file /etc/ssh/blacklist.RSA-2048
debug1: identity file .ssh/server_id_rsa-cert type -1
debug1: Remote protocol version 2.0, remote software version OpenSSH_5.9p1 Debian-5ubuntu1
debug1: match: OpenSSH_5.9p1 Debian-5ubuntu1 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_5.8p1 Debian-7ubuntu1
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client aes128-ctr hmac-md5 none
debug1: kex: client->server aes128-ctr hmac-md5 none
debug1: sending SSH2_MSG_KEX_ECDH_INIT
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: ECDSA 0a:ab:ca:78:ab:c1:37:68:5c:23:99:58:bf:c3:b9:fa
debug1: Host '[188.134.91.230]:1026' is known and matches the ECDSA host key.
debug1: Found key in /home/zeka13/.ssh/known_hosts:1
debug1: ssh_ecdsa_verify: signature correct
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: Roaming not allowed by server
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey,password
debug1: Next authentication method: publickey
debug1: Offering RSA public key: .ssh/server_id_rsa
debug1: Authentications that can continue: publickey,password
debug1: Offering RSA public key: zeka13@Zond
debug1: Authentications that can continue: publickey,password
debug1: Next authentication method: password
zeka@188.134.91.230's password:

[victor00000]

лог не понял, лучше удалить rm -rf ~/.ssh/*

[ArcFi]

1) проверьте наличие содержимого ~/.ssh/server_id_rsa.pub с локальной машины в ~/.ssh/authorized_keys на удалённой машине
2) попробуйте включить более подробный лог:

Код: [Выделить]

ssh -vvv ...

[Zeka13]

rm -rf на сервере

Код: [Выделить]

zeka@Satellite:~$ rm -rf .ssh/rm -rf на машине

Код: [Выделить]

zeka13@Zond:~$ rm -rf .sshделаю ключ

(Нажмите, чтобы показать/скрыть)

zeka13@Zond:~$ ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/home/zeka13/.ssh/id_rsa):
Created directory '/home/zeka13/.ssh'.
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/zeka13/.ssh/id_rsa.
Your public key has been saved in /home/zeka13/.ssh/id_rsa.pub.
....

заливаю его на сервер

(Нажмите, чтобы показать/скрыть)

zeka13@Zond:~$ ls .ssh
id_rsa  id_rsa.pub
zeka13@Zond:~$ IDENTITY=".ssh/id_rsa.pub"
zeka13@Zond:~$ SSH_PORT=1026
zeka13@Zond:~$ SSH_USER=zeka
zeka13@Zond:~$ SSH_HOST=188.134.91.230
zeka13@Zond:~$ ssh-copy-id -i "$IDENTITY" "-p $SSH_PORT $SSH_USER@$SSH_HOST"
The authenticity of host '[188.134.91.230]:1026 ([188.134.91.230]:1026)' can't be established.
ECDSA key fingerprint is 0a:ab:ca:78:ab:c1:37:68:5c:23:99:58:bf:c3:b9:fa.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '[188.134.91.230]:1026' (ECDSA) to the list of known hosts.
zeka@188.134.91.230's password:
Now try logging into the machine, with "ssh '-p 1026 zeka@188.134.91.230'", and check in:

  ~/.ssh/authorized_keys

to make sure we haven't added extra keys that you weren't expecting.

делаю обычный конект

Код: [Выделить]

zeka13@Zond:~$ ssh -p 1026 zeka@188.134.91.230
zeka@188.134.91.230's password:пробую с опцией -vvv

(Нажмите, чтобы показать/скрыть)

zeka13@Zond:~$ ssh -vvv -p 1026 zeka@188.134.91.230
OpenSSH_5.8p1 Debian-7ubuntu1, OpenSSL 1.0.0e 6 Sep 2011
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug2: ssh_connect: needpriv 0
debug1: Connecting to 188.134.91.230 [188.134.91.230] port 1026.
debug1: Connection established.
debug3: Incorrect RSA1 identifier
debug3: Could not load "/home/zeka13/.ssh/id_rsa" as a RSA1 public key
debug2: key_type_from_name: unknown key type '-----BEGIN'
debug3: key_read: missing keytype
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug2: key_type_from_name: unknown key type '-----END'
debug3: key_read: missing keytype
debug1: identity file /home/zeka13/.ssh/id_rsa type 1
debug1: Checking blacklist file /usr/share/ssh/blacklist.RSA-2048
debug1: Checking blacklist file /etc/ssh/blacklist.RSA-2048
debug1: identity file /home/zeka13/.ssh/id_rsa-cert type -1
debug1: identity file /home/zeka13/.ssh/id_dsa type -1
debug1: identity file /home/zeka13/.ssh/id_dsa-cert type -1
debug1: identity file /home/zeka13/.ssh/id_ecdsa type -1
debug1: identity file /home/zeka13/.ssh/id_ecdsa-cert type -1
debug1: Remote protocol version 2.0, remote software version OpenSSH_5.9p1 Debian-5ubuntu1
debug1: match: OpenSSH_5.9p1 Debian-5ubuntu1 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_5.8p1 Debian-7ubuntu1
debug2: fd 3 setting O_NONBLOCK
debug3: put_host_port: [188.134.91.230]:1026
debug3: load_hostkeys: loading entries for host "[188.134.91.230]:1026" from file "/home/zeka13/.ssh/known_hosts"
debug3: load_hostkeys: found key type ECDSA in file /home/zeka13/.ssh/known_hosts:1
debug3: load_hostkeys: loaded 1 keys
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
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug2: kex_parse_kexinit: 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
debug2: kex_parse_kexinit: 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-rsa-cert-v01@openssh.com,ssh-dss-cert-v01@openssh.com,ssh-rsa-cert-v00@openssh.com,ssh-dss-cert-v00@openssh.com,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,rijndael-cbc@lysator.liu.se
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,rijndael-cbc@lysator.liu.se
debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,umac-64@openssh.com,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,umac-64@openssh.com,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: none,zlib@openssh.com,zlib
debug2: kex_parse_kexinit: none,zlib@openssh.com,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: 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
debug2: kex_parse_kexinit: ssh-rsa,ssh-dss,ecdsa-sha2-nistp256
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,rijndael-cbc@lysator.liu.se
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,rijndael-cbc@lysator.liu.se
debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,umac-64@openssh.com,hmac-sha2-256,hmac-sha2-256-96,hmac-sha2-512,hmac-sha2-512-96,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,umac-64@openssh.com,hmac-sha2-256,hmac-sha2-256-96,hmac-sha2-512,hmac-sha2-512-96,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: none,zlib@openssh.com
debug2: kex_parse_kexinit: none,zlib@openssh.com
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
debug1: sending SSH2_MSG_KEX_ECDH_INIT
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: ECDSA 0a:ab:ca:78:ab:c1:37:68:5c:23:99:58:bf:c3:b9:fa
debug3: put_host_port: [188.134.91.230]:1026
debug3: put_host_port: [188.134.91.230]:1026
debug3: load_hostkeys: loading entries for host "[188.134.91.230]:1026" from file "/home/zeka13/.ssh/known_hosts"
debug3: load_hostkeys: found key type ECDSA in file /home/zeka13/.ssh/known_hosts:1
debug3: load_hostkeys: loaded 1 keys
debug3: load_hostkeys: loading entries for host "[188.134.91.230]:1026" from file "/home/zeka13/.ssh/known_hosts"
debug3: load_hostkeys: found key type ECDSA in file /home/zeka13/.ssh/known_hosts:1
debug3: load_hostkeys: loaded 1 keys
debug1: Host '[188.134.91.230]:1026' is known and matches the ECDSA host key.
debug1: Found key in /home/zeka13/.ssh/known_hosts:1
debug1: ssh_ecdsa_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/zeka13/.ssh/id_rsa (0x7f5c0d381f10)
debug2: key: /home/zeka13/.ssh/id_dsa ((nil))
debug2: key: /home/zeka13/.ssh/id_ecdsa ((nil))
debug1: Authentications that can continue: publickey,password
debug3: start over, passed a different list publickey,password
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: Offering RSA public key: /home/zeka13/.ssh/id_rsa
debug3: send_pubkey_test
debug2: we sent a publickey packet, wait for reply
debug1: Authentications that can continue: publickey,password
debug1: Trying private key: /home/zeka13/.ssh/id_dsa
debug3: no such identity: /home/zeka13/.ssh/id_dsa
debug1: Trying private key: /home/zeka13/.ssh/id_ecdsa
debug3: no such identity: /home/zeka13/.ssh/id_ecdsa
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
zeka@188.134.91.230's password:

[victor00000]

Zeka13,
пожалуйста проверка

Код: [Выделить]

ssh test@5.231.6.184 "cat privet.txt"пароль - 1
как работает?

[Zeka13]

и тебе Привет! 

у меня два сервера на 12.04 - на одном по ключу всё работает, а на другом - нет!