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Full Discussion: Ssh errors
Top Forums UNIX for Beginners Questions & Answers Ssh errors Post 303011830 by drysdalk on Wednesday 24th of January 2018 06:48:58 AM
Old 01-24-2018
Hi,

Happy New Year to you too ! Firstly, your atetmpt to run sshd at the server-side in debugging mode failed because there was already an instance of sshd listening on port 22, so no new instance could start. To caputre debugging output you'd have to stop the SSH daemon on the server, then run the debugging instance manually again. That would then be able to bind to port 22 and capture debugging info for your incoming session, which might shed more light on things.

Regarding the actual error itself, it would seem to imply that as you suspect something has gone wrong with the key you're trying to use for authentication. Either the key you're using isn't in the authorized_keys file at the server side for the account you're attempting to log in to, or there's something wrong with its entry if it is. Alternatively, there could also be a problem with the permissions on the authorized_keys file, or with the .ssh directory or its parent.

But hopefully actually getting to capture the debugging data will help you figure out what exactly has gone wrong here. You can also get more debugging info from the client side too, by running your SSH command with the -v flag, e.g. ssh -v -v -v user@server.

Hope this helps.
Last edited by drysdalk; 01-24-2018 at 08:32 AM..
 

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LEARN ABOUT DEBIAN

config::model::models::ssh::portforward

Config::Model::models::Ssh::PortForward(3pm)		User Contributed Perl Documentation	      Config::Model::models::Ssh::PortForward(3pm)

NAME

       Config::Model::models::Ssh::PortForward - Configuration class Ssh::PortForward

DESCRIPTION

       Configuration classes used by Config::Model

       Configuration class that represents the parameters required to specify port forwarding in a ssh configuration.

Elements
   ipv6
       Specify if the forward is specified iwth IPv6 or IPv4. Optional. Type boolean.

   bind_address - bind address to listen to
       Specify the address that the port will listen to. By default, only connections coming from localhost (127.0.0.1) will be forwarded.

       By default, the local port is bound in accordance with the GatewayPorts setting. However, an explicit bind_address may be used to bind the
       connection to a specific address.

       The bind_address of 'localhost' indicates that the listening port be bound for local use only, while an empty address or '*' indicates that
       the port should be available from all interfaces.Optional. Type uniline.

   port
       Listening port. Connection made to this port will be forwarded to the other side of the tunnel.Mandatory. Type uniline.

   host - host name or address
       Mandatory. Type uniline.

   hostport - destination port
       Port number to connect the tunnel to.Mandatory. Type uniline.

SEE ALSO

       o   cme

AUTHOR

       Dominique Dumont

COPYRIGHT

       2009-2011 Dominique Dumont

LICENSE

       LGPL2

perl v5.14.2							    2012-10-29			      Config::Model::models::Ssh::PortForward(3pm)
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