Ruby ssh 错误 Net::SSH::AuthenticationFailed 与 PHP 一起使用时答案

【问题标题】：Ruby ssh error Net::SSH::AuthenticationFailed while it works with PHPRuby ssh 错误 Net::SSH::AuthenticationFailed 与 PHP 一起使用时
【发布时间】：2012-03-24 08:18:46
【问题描述】：

我尝试使用 Ruby 通过 SSH 连接服务器，但出现 Net::SSH::AuthenticationFailed 错误。问题是它可以在 PHP 中运行。

这是我的红宝石代码：

require 'rubygems'
require 'net/ssh'
include Net
domain = 'ks2.so.d-sites.com' # insert IP address or domain name here
begin
Net::SSH.start( domain, 'webistrano', :verbose => :debug, :keys => ['/home/webistrano/.ssh/id_rsa', '/home/webistrano/.ssh/id_rsa.pub'], :port => 22 ) do |ssh|
print "connected"
end
rescue Net::SSH::HostKeyMismatch => e
  puts "remembering new key: #{e.fingerprint}"
  e.remember_host!
  retry
end

我得到这个错误：

D, [2012-03-06T20:40:02.974862 #24165] DEBUG -- net.ssh.transport.session[3f8c5d3a06a0]: establishing connection to ks2.so.d-sites.com:22
D, [2012-03-06T20:40:02.975912 #24165] DEBUG -- net.ssh.transport.session[3f8c5d3a06a0]: connection established
I, [2012-03-06T20:40:02.976039 #24165]  INFO -- net.ssh.transport.server_version[3f8c5d39edc8]: negotiating protocol version
D, [2012-03-06T20:40:02.981160 #24165] DEBUG -- net.ssh.transport.server_version[3f8c5d39edc8]: remote is `SSH-2.0-OpenSSH_5.8p1-hpn13v10'
D, [2012-03-06T20:40:02.981231 #24165] DEBUG -- net.ssh.transport.server_version[3f8c5d39edc8]: local is `SSH-2.0-Ruby/Net::SSH_2.3.0 x86_64-linux'
D, [2012-03-06T20:40:02.982272 #24165] DEBUG -- tcpsocket[3f8c5d39f250]: read 856 bytes
D, [2012-03-06T20:40:02.982418 #24165] DEBUG -- tcpsocket[3f8c5d39f250]: received packet nr 0 type 20 len 852
I, [2012-03-06T20:40:02.982517 #24165]  INFO -- net.ssh.transport.algorithms[3f8c5d39e418]: got KEXINIT from server
I, [2012-03-06T20:40:02.982690 #24165]  INFO -- net.ssh.transport.algorithms[3f8c5d39e418]: sending KEXINIT
D, [2012-03-06T20:40:02.982883 #24165] DEBUG -- tcpsocket[3f8c5d39f250]: queueing packet nr 0 type 20 len 716
D, [2012-03-06T20:40:02.982960 #24165] DEBUG -- tcpsocket[3f8c5d39f250]: sent 720 bytes
I, [2012-03-06T20:40:02.983003 #24165]  INFO -- net.ssh.transport.algorithms[3f8c5d39e418]: negotiating algorithms
D, [2012-03-06T20:40:02.983161 #24165] DEBUG -- net.ssh.transport.algorithms[3f8c5d39e418]: negotiated:
* kex: diffie-hellman-group-exchange-sha1
* host_key: ssh-rsa
* encryption_server: aes128-cbc
* encryption_client: aes128-cbc
* hmac_client: hmac-sha1
* hmac_server: hmac-sha1
* compression_client: none
* compression_server: none
* language_client: 
* language_server: 
D, [2012-03-06T20:40:02.983207 #24165] DEBUG -- net.ssh.transport.algorithms[3f8c5d39e418]: exchanging keys
D, [2012-03-06T20:40:02.983416 #24165] DEBUG -- tcpsocket[3f8c5d39f250]: queueing packet nr 1 type 34 len 20
D, [2012-03-06T20:40:02.983469 #24165] DEBUG -- tcpsocket[3f8c5d39f250]: sent 24 bytes
D, [2012-03-06T20:40:03.024146 #24165] DEBUG -- tcpsocket[3f8c5d39f250]: read 152 bytes
D, [2012-03-06T20:40:03.024270 #24165] DEBUG -- tcpsocket[3f8c5d39f250]: received packet nr 1 type 31 len 148
D, [2012-03-06T20:40:03.027331 #24165] DEBUG -- tcpsocket[3f8c5d39f250]: queueing packet nr 2 type 32 len 140
D, [2012-03-06T20:40:03.027409 #24165] DEBUG -- tcpsocket[3f8c5d39f250]: sent 144 bytes
D, [2012-03-06T20:40:03.032446 #24165] DEBUG -- tcpsocket[3f8c5d39f250]: read 720 bytes
D, [2012-03-06T20:40:03.032563 #24165] DEBUG -- tcpsocket[3f8c5d39f250]: received packet nr 2 type 33 len 700
D, [2012-03-06T20:40:03.035433 #24165] DEBUG -- tcpsocket[3f8c5d39f250]: queueing packet nr 3 type 21 len 20
D, [2012-03-06T20:40:03.035505 #24165] DEBUG -- tcpsocket[3f8c5d39f250]: sent 24 bytes
D, [2012-03-06T20:40:03.035617 #24165] DEBUG -- tcpsocket[3f8c5d39f250]: received packet nr 3 type 21 len 12
D, [2012-03-06T20:40:03.035954 #24165] DEBUG -- net.ssh.authentication.session[3f8c5e189fdc]: beginning authentication of `webistrano'
D, [2012-03-06T20:40:03.036081 #24165] DEBUG -- tcpsocket[3f8c5d39f250]: queueing packet nr 4 type 5 len 28
D, [2012-03-06T20:40:03.036130 #24165] DEBUG -- tcpsocket[3f8c5d39f250]: sent 52 bytes
D, [2012-03-06T20:40:03.074777 #24165] DEBUG -- tcpsocket[3f8c5d39f250]: read 52 bytes
D, [2012-03-06T20:40:03.074912 #24165] DEBUG -- tcpsocket[3f8c5d39f250]: received packet nr 4 type 6 len 28
D, [2012-03-06T20:40:03.075018 #24165] DEBUG -- net.ssh.authentication.session[3f8c5e189fdc]: trying password
E, [2012-03-06T20:40:03.075077 #24165] ERROR -- net.ssh.authentication.session[3f8c5e189fdc]: all authorization methods failed (tried password)
/usr/lib64/ruby/gems/1.8/gems/net-ssh-2.3.0/lib/net/ssh.rb:200:in `start': webistrano (Net::SSH::AuthenticationFailed)
    from ssh-test.rb:6

我写了一个简单的 PHP 代码，它可以工作：

<?php
$connection = ssh2_connect('ks2.so.d-sites.com', 22);

if (ssh2_auth_pubkey_file($connection, 'webistrano',
                          '/home/webistrano/.ssh/id_rsa.pub',
                          '/home/webistrano/.ssh/id_rsa')) {
  echo "Identification réussie en utilisant une clé publique\n";
} else {
  die('Echec de l\'identification en utilisant une clé publique');
}

有人可以帮助我吗？提前非常感谢！

【问题讨论】：

标签： ruby authentication ssh

【解决方案1】：

我找到了解决这个问题的方法：在Net::SSH.start 函数中添加一个:auth_methods => ['publickey','password'] 参数。

【讨论】：

结帐也:non_interactive => true
只需执行ssh-add 并再次尝试对我有用。

【解决方案2】：

我之前看到过这个错误，尝试卸载 gem 'net-ssh'，试试这个：gem uninstall net-ssh -v 2.8.0，它对我有用，参考：https://stackoverflow.com/a/21566548/3159604

【讨论】：

【解决方案3】：

我没有使用 Net::SSH.start 解决方案，但选择了 set :ssh_options, {:forward_agent => true, :auth_methods => 'publickey'}，这似乎对我有用。

请注意，最初，我只是在运行 FreeBSD、CentOS 和 MacOSX 的 3 台机器上使用 set :ssh_options, {:forward_agent => true} 并且它运行良好 - 甚至用于生产版本，但是在基于 VBoxed Vagrant 的 CentOS（6.4 ) 机器停止工作。所以，添加 auth_method 就可以了。

【讨论】：

【解决方案4】：

只需运行ssh-add（在终端中）并再次尝试（部署）对我有用。

【讨论】：