[Samba] Hostname and kerberos

[Александр Свиридов]

 In samba 4 log I get the following message:

[2013/04/29 00:44:30,  0] ../source4/smbd/server.c:369(binary_smbd_main)
  samba version 4.1.0pre1-GIT-5727bfa started.
  Copyright Andrew Tridgell and the Samba Team 1992-2013
[2013/04/29 00:44:31,  0] ../source4/smbd/server.c:475(binary_smbd_main)
  samba: using 'standard' process model
[2013/04/29 00:44:32,  1] ../source4/auth/gensec/gensec_gssapi.c:339(gensec_gssapi_client_start)
  Could not determine hostname for target computer, cannot use kerberos
[2013/04/29 00:44:32,  1] ../source4/auth/gensec/gensec_gssapi.c:339(gensec_gssapi_client_start)
  Could not determine hostname for target computer, cannot use kerberos

and in another log I have:
[2013/04/29 00:44:32.534527,  0] ../source3/lib/util_sock.c:423(open_socket_in)
  open_socket_in(): socket() call failed: Address family not supported by protocol
[2013/04/29 00:44:32.541347,  0] ../source3/smbd/server.c:684(smbd_open_one_socket)
  smbd_open_once_socket: open_socket_in: Address family not supported by protocol
[2013/04/29 00:44:32.542740,  0] ../source3/lib/util_sock.c:423(open_socket_in)
  open_socket_in(): socket() call failed: Address family not supported by protocol
[2013/04/29 00:44:32.542874,  0] ../source3/smbd/server.c:684(smbd_open_one_socket)
  smbd_open_once_socket: open_socket_in: Address family not supported by protocol

I changed the hostname in /etc/sysconfig/network to name of realm, but it didn't help. I use samba 4, centos 6.3. Please help me. Pavel