Problems with login to debian7 server

[Daniel Kroker <dk@xxxxxxxxx>]

Hello,

i have problems to login into debian 7 server. Debian 5 works fine for 
me with this code.

  int rc = method = ssh_userauth_list(session, NULL);
  qDebug() << "method: " << QString::number(method);

ssh_userauth_list returned 0 it looks like 0 is ssh_auth_method_unknown.

/var/log/auth.log:

Apr 28 15:00:38 irecou1 sshd[27035]: Set /proc/self/oom_score_adj to 0
Apr 28 15:00:38 irecou1 sshd[27035]: Connection from 85.183.245.45 port 
56710
Apr 28 15:00:39 irecou1 sshd[27035]: Connection closed by 85.183.245.45 
[preauth]

SSH Version:
root@irecou1:/tmp/openssh-5.1p1# sshd -v
sshd: illegal option -- v
OpenSSH_6.0p1 Debian-4+deb7u1, OpenSSL 1.0.1e 11 Feb 2013

Under debian 5 it works fine.

We are using libssh 0.5.3

have someone a idea?