[Centos] samba joining an ads domain

Marc Powell

marc at ena.com
Tue Feb 15 19:53:28 UTC 2005



> -----Original Message-----
> From: centos-bounces at caosity.org [mailto:centos-bounces at caosity.org]
On
> Behalf Of Marcello Mezzanotti
> Sent: Tuesday, February 15, 2005 2:23 PM
> To: centos at caosity.org
> Subject: [Centos] samba joining an ads domain
> 
> 
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> Hello, i just installed CentOS 3.4, im trying to join this machine on
> Windows 2000 AD, i did some confs on krb5.conf (REALM CONF) and
> smb.conf
> 
> kinit Administrator at DOMAIN.COM goes fine but net ads join -U
> Administrator give me this:
> 
> [root at sol etc]# net ads join -U Administrator Administrator's
> password:
> [2005/02/15 17:28:32, 0] utils/net_ads.c:ads_startup(186)
>   ads_connect: No credentials found with supported encryption types
> [root at sol etc]#
> 
> whats wrong??

Funny, I was _just_ working on this. There are two issues that I
encountered, the first being the one above and Google helped to resolve
both. To correct your immediate issue, add 

default_tkt_enctypes = des-cbc-crc des-cbc-md5
default_tgs_enctypes = des-cbc-crc

to the [libdefaults] section of /etc/krb5.conf

Additionally, to get ssh access working I needed to disable the use of
privileged separation for sshd. The problem in my case is that
pam_mkhomedir.so needs root access to create the home directories if
they don't exist. The way I've done it makes sshd a little less secure
so I'm open to other suggestions...

/etc/ssh/sshd_config --

UsePrivilegeSeparation no

The information in my log files before the change was --

/var/log/secure
Feb 15 11:23:29 prodlnx01 sshd[7990]: Accepted password for [username]
from [host] port 32781 ssh2
Feb 15 11:23:29 prodlnx01 sshd[7992]: fatal: PAM session setup
failed[6]: Permission denied

And

/var/log/messages
Feb 15 11:23:29 prodlnx01 sshd(pam_unix)[7990]: check pass; user unknown
Feb 15 11:23:29 prodlnx01 sshd(pam_unix)[7990]: authentication failure;
logname= uid=0 euid=0 tty=NODEVssh ruser= rhost=[host] 
Feb 15 11:23:29 prodlnx01 pam_winbind[7990]: user '[username]' granted
access
Feb 15 11:23:29 prodlnx01 sshd(pam_unix)[7992]: session opened for user
[username] by (uid=10327)

--
Marc 




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