[erlang-bugs] Error on running Erlang SSH server

Arif arif@REDACTED
Sun Jun 15 19:56:03 CEST 2014


I have tried to replicate the problem and it is as Tony suggested: 
system_dir in the list of user_passwords ensures system_dir is not set.
There are either no host keys in the default directory as Daniel's reply 
suggests or if they are, they are not readable.
The bug, if any, would be the somewhat misleading error message with a 
request to report it to this mailing list.
Regards
Arif

On 06/14/2014 12:00 PM, erlang-bugs-request@REDACTED wrote:
> Date: Fri, 13 Jun 2014 09:08:05 -0500
> From: Daniel Goertzen <daniel.goertzen@REDACTED>
> To: Mario Santoro <mario.santoro@REDACTED>
> Cc: "erlang-bugs@REDACTED" <erlang-bugs@REDACTED>
> Subject: Re: [erlang-bugs] Error on running Erlang SSH server
> Message-ID:
> 	<CAJCf5RydyfGYF=zimifPLFUjjDpd0_YrPM856BQ7C=JrBJ6nRA@REDACTED>
> Content-Type: text/plain; charset="utf-8"
>
>
> On Thu, Jun 12, 2014 at 10:03 AM, Mario Santoro <mario.santoro@REDACTED>
> wrote:
>
>>   Hi,
>>
>> I?m trying to run an SSH server in Erlang and test a <user/password>
>> connection over SSH.
>>
>> I?ve generated an RSA keys pair (with NO passphrase) for the SSH system
>> and put the private key into ?C:/Utility/Putty/ssh_daemon? directory,
>>
>> while the user public_key is into ?C:/Utility/Putty/public_key? directory.
>>
>> I?m running both the server and the client on the same PC, into two
>> different Erlang nodes.
>>
>>
>>
>> The SSH server starts fine:
>>
>> *(**node1@REDACTED)1> ssh:start().*
>>
>> *ok*
>>
>> *(node1@REDACTED)2> {ok, Sshd} = ssh:daemon(8988, [{auth_methods,
>> "password"}, {user_passwords, [{"mario", "mariopasswd"}, {system_dir,
>> "C:/Utility/Putty/ssh_daemon"}]} ]).*
>>
>> *{ok,<0.54.0>}*
>>
>>
>>
>>
>>
>> but on receiving a connection from the client:
>>
>> *(node2@REDACTED)1> ssh:start().*
>>
>> *ok*
>>
>> *(node2@REDACTED)2> {ok, ConnectionRef} =
>> ssh:connect("E7E4115BF83167", 8988, [{user, "mario"}, {password,
>> "mariopasswd"}, {user_dir, "C:/Utility/Putty/public_key"},
>> {silently_accept_hosts, true}, {user_interaction, false} ], 5000).*
>>
>> *** exception error: no match of right hand side value {error,"Internal
>> error"}*
>>
>>
>>
>>
>>
>> the SSH server application is crashing with the following error:
>>
>> *(node1@REDACTED)3> *
>>
>> *=ERROR REPORT==== 29-May-2014::17:44:58 ===*
>>
>> *Erlang ssh connection handler failed with reason: function_clause *
>>
>> *, Stacktace: [{ssh_file,identity_pass_phrase,*
>>
>> *                        [undefined],*
>>
>> *                        [{file,"ssh_file.erl"},{line,222}]},*
>>
>> *              {ssh_file,host_key,2,[{file,"ssh_file.erl"},{line,53}]},*
>>
>> *              {ssh_transport,get_host_key,1,*
>>
>> *                             [{file,"ssh_transport.erl"},{line,412}]},*
>>
>> *              {ssh_transport,handle_kexdh_init,2,*
>>
>> *                             [{file,"ssh_transport.erl"},{line,314}]},*
>>
>> *              {ssh_connection_handler,key_exchange,2,*
>>
>> *
>>                                  [{file,"ssh_connection_handler.erl"},*
>>
>> *                                       {line,201}]},*
>>
>> *              {gen_fsm,handle_msg,7,[{file,"gen_fsm.erl"},{line,494}]},*
>>
>> *
>> {proc_lib,init_p_do_apply,3,[{file,"proc_lib.erl"},{line,239}]}] *
>>
>> *please report this to erlang-bugs@REDACTED <erlang-bugs@REDACTED>*
>>
>>
>>
>>
>>
>> This happens at each client connection attempt.
>>
>> Could you please help me on this issue?
>>
>>
>>
>> Thank you in advance for your help.
>>
>>
>>
>> Regards,
>>
>> /Mario
>>
>>




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