Perl Net::SFTP::Foreign 密码验证问题

Question

我正在尝试使用 perl Net::SFTP::Foreign 将文件传输到远程主机。但在建立连接时，我通过 $sftp->error 收到以下错误消息。该程序对于其他远程主机运行良好。

错误消息:未按预期请求密码:0

对应的代码片段:

my %args = (password => $config->[$i]->{'PSWD'}, user => $config->[$i]->{'USERNAME'}, port => $config->[$i]->{'PORT'}, more => [-o => 'StrictHostKeyChecking no'], more => '-v');
$sftp = Net::SFTP::Foreign->new($config->[$i]->{'HOSTNAME'}, %args);

详细日志(相关部分):

debug1: SSH2_MSG_SERVICE_REQUEST sent
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: keyboard-interactive,password
debug1: Next authentication method: keyboard-interactive
Password authentication

此后，程序因上述错误而终止。

Answer 1

根据我的个人经验，Net::SFTP::Foreign 的工作方式会根据您要连接的服务器的设置而有所不同。

以下是我建议您尝试的步骤:

尝试通过硬编码主机、用户、密码、端口(默认为 22，或任何实际端口)进行连接:

my %args = (user => "username", password => "password", port => 22, more => [-o => 'StrictHostKeyChecking no']);

如果这不起作用，请尝试以下操作:

my %args = (user => "username", password => "password", port => 22, more => [-o => 'StrictHostKeyChecking no', -o => 'PreferredAuthentications=password']);

my %args = (user => "username", password => "password", port => 22, more => [-o => 'StrictHostKeyChecking no', -o => 'PreferredAuthentications=password,keyboard-interactive']);

my %args = (user => "username", password => "password", port => 22, more => [-o => 'StrictHostKeyChecking no', -o => 'PreferredAuthentications=keyboard-interactive,password']);

一旦这些连接字符串之一起作用，请尝试用变量替换硬编码值。