[erlang-bugs] Error on running Erlang SSH server

Mario Santoro <>
Mon Jun 16 18:22:25 CEST 2014


Hi Tony,
you were right about the wrong tuple where I specified the system_dir.

Tried with the following:

>{ok, Sshd} = ssh:daemon(8988, [{auth_methods, "password"}, {user_passwords, [{"mario", "mariopasswd"}]}, {system_dir, "C:/Utility/Putty/ssh_daemon"} ]).
âZ{ok,<0.644.0>}

but at client connection:
>{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"}

I got the same error.

The host keys are installed in the specified paths.

Hi,
which ssh version are you running?

Hi Hans,
from the output of ssh:module_info()., I get:
¡­
{version,"4.9"},
{time,{2013,2,25,19,38,30}}
¡­


Thanks all so far for your help.

/Mario


From: Tony Rogvall [mailto:]
Sent: venerd¨¬ 13 giugno 2014 15:14
To: 
Cc: Mario Santoro; 
Subject: Re: [erlang-bugs] Error on running Erlang SSH server


On 13 jun 2014, at 14:46, Hans Nilsson <<mailto:>> wrote:


Hi,
which ssh version are you running?
/Hans
On 2014-06-12 17:03, Mario Santoro 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:
()1> ssh:start().
ok
()2> {ok, Sshd} = ssh:daemon(8988, [{auth_methods, "password"}, {user_passwords, [{"mario", "mariopasswd"},{system_dir, "C:/Utility/Putty/ssh_daemon"}]} ]).
{ok,<0.54.0>}

Could the problem be that {system_dir, "C:/Utility/Putty/ssh_daemon"}
is specified in the {user_passwords,..} list and not as a separate option. ?


/Tony


but on receiving a connection from the client:
()1> ssh:start().
ok
()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:
()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 <mailto:>


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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MARIO SANTORO
CD Media & Application

Ericsson Telecomunicazioni SpA
SCM Region
Via Anagnina, 203
00118, Rome, ITALY
Phone +39 06 7258 8404
Fax +39 06 7258 4289
Mobile +39 335 699 5215
<mailto:>
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