Package: x2goclient

Version: lucid - precise: amd64/i386 (ppa.launchpad), precise 3.99.0.5-1: amd64/i386

I should use OTM authentification (One Time Password) like google authentificator on my X2go server but it's impossible to mount shared folder and/or local printer.

If i don't use OTP, i can see x2goclient connect twice to my server. First time to login and second time, to shared folder and/or local printer

Dec  1 10:33:22 my_serveur sshd[22271]: Accepted password for pascal from AAA.BBB.CCC.DDD port 36053 ssh2

Dec  1 10:33:22 my_serveur sshd[22271]: pam_unix(sshd:session): session opened for user pascal by (uid=0)

Dec  1 10:33:36 my_serveur sshd[22707]: Accepted password for pascal from AAA.BBB.CCC.DDD port 36057 ssh2

Dec  1 10:33:36 my_serveur sshd[22707]: pam_unix(sshd:session): session opened for user pascal by (uid=0)

I i use OTP, password is valide one time. So, i can login on x2goserver but i can not reuse the same password to shared folder:

Dec  1 10:37:26 my_serveur sshd[28415]: Accepted password for pascal from AAA.BBB.CCC.DDD port 36062 ssh2

Dec  1 10:37:26 my_serveur sshd[28415]: pam_unix(sshd:session): session opened for user pascal by (uid=0)

Dec  1 10:37:36 my_serveur sshd(pam_google_authenticator)[28839]: Trying to reuse a previously used time-based code. Retry again in 30 seconds. Warning! This might mean, you are currently subject to a man-in-the-middle attack.

Dec  1 10:37:36 my_serveur sshd(pam_google_authenticator)[28839]: Invalid verification code

Dec  1 10:37:36 my_serveur sshd[28839]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=toto.tata.titi.fr  user=pascal

Dec  1 10:37:39 my_serveur sshd[28839]: Failed password for pascal from AAA.BBB.CCC.DDD port 36067 ssh2

Dec  1 10:37:39 my_serveur sshd[28839]: Received disconnect from AAA.BBB.CCC.DDD: Bye Bye [preauth]

If X2goclient use multiplex ssh client option:

Host *

    ControlMaster auto

    ControlPath ~/.ssh/%r@%h:%p

First connection use password and create SSH socket file. 

The second connection reuse first one and it can connect whithout authentification.

In my test, X2goclient don't use some ssh client option.

Regards

Pascal Vibet