On Fri, Jul 17, 2015 at 04:18:06PM +0530, Kishore Av wrote: > Thanks for response, > I already tried userauth_list and it returns NULL. > Based on your explanation i comes to know that, ssh server should be > configured > as none. It seems server issue.
While it may appear that 'ssh <IP address>' is connecting without authentication, there are several ways that ssh could be silently authenticating without requiring a password and without you realizing it (e.g. Kerberos, private key, ssh-agent). If you give the -v option on the OpenSSH client command-line, it will show you the steps it is going to authenticate the connection. There's a good chance that it's not actually unauthenticated. In today's world, there are few instances where that's a good idea. > > Thanks > Kishore > > On 17-Jul-2015 2:47 pm, "Peter Stuge" <pe...@stuge.se> wrote: > > Kishore Av wrote: > > I could able to connect ssh server only with username and without > > providing the password manually. > > Did you study the protocol specification? > > RFC 4252 5.2. The "none" Authentication Request > > A client may request a list of authentication 'method name' values > that may continue by using the "none" authentication 'method name'. > > > > Is there a way to connect that server through libssh2 ? > > As I wrote, the libssh2 API matches the protocol API closely. > > > > If so, which API can be used to connect? > > Did you study the library API documentation? > > /* libssh2_userauth_list > * > * List authentication methods > * Will yield successful login if "none" happens to be allowable for this > user > > > > //Peter > _______________________________________________ > libssh2-devel http://cool.haxx.se/cgi-bin/mailman/listinfo/libssh2-devel > > _______________________________________________ > libssh2-devel http://cool.haxx.se/cgi-bin/mailman/listinfo/libssh2-devel _______________________________________________ libssh2-devel http://cool.haxx.se/cgi-bin/mailman/listinfo/libssh2-devel
