On Tue, Jul 21, 2015 at 12:21:41PM +0530, Kishore Av wrote: > Thanks Dan, -v options really helps me to check debug. > > Authentication success, got confirmed by libssh2_userauth_authenticated. > Channel created success. > > Now there is another issue, > while executing command It's returning error string "Failed waiting for > channel > success". > > May I know what problem it is???
That error message comes from the function _libssh2_channel_process_startup. It occurs when the reply code SSH_MSG_CHANNEL_SUCCESS or SSH_MSG_CHANNEL_FAILURE are not received. The error code printed in that error message will give you a better idea why that might be the case. >>> Dan > > Thanks > Kishore > > On 21-Jul-2015 3:08 am, "Dan Fandrich" <d...@coneharvesters.com> wrote: > > 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 > > _______________________________________________ > libssh2-devel http://cool.haxx.se/cgi-bin/mailman/listinfo/libssh2-devel _______________________________________________ libssh2-devel http://cool.haxx.se/cgi-bin/mailman/listinfo/libssh2-devel
