[Samba] I can't join the new AD server with Samba4
Rowland Penny
rowlandpenny at googlemail.com
Sat Apr 25 10:11:06 MDT 2015
On 25/04/15 17:07, Daniel Carrasco Marín wrote:
> Thanks for all your help.
>
> I've got the same error, then i think maybe is a problem related with
> upgrade. Maybe any wrong permissions or info on old samba server.
> I'll try to create a new domain with right data and migrate all
> machines (fortunately are few computers). I think is the best.
>
> Greetings!!
>
> 2015-04-25 17:44 GMT+02:00 Rowland Penny <rowlandpenny at googlemail.com
> <mailto:rowlandpenny at googlemail.com>>:
>
> On 25/04/15 16:24, Daniel Carrasco Marín wrote:
>
>
>
> 2015-04-25 16:57 GMT+02:00 Rowland Penny
> <rowlandpenny at googlemail.com
> <mailto:rowlandpenny at googlemail.com>
> <mailto:rowlandpenny at googlemail.com
> <mailto:rowlandpenny at googlemail.com>>>:
>
>
> On 25/04/15 15:44, Daniel Carrasco Marín wrote:
>
>
>
> On AD server i've linked the kerberos file on samba
> folder:
> lrwxrwxrwx 1 root root 32 abr 25 16:23 krb5.conf ->
> /var/lib/samba/private/krb5.conf
>
> On client i've the default:
> [libdefaults]
> default_realm = TTU.RED
>
> # The following krb5.conf variables are only for MIT
> Kerberos.
> krb4_config = /etc/krb.conf
> krb4_realms = /etc/krb.realms
> kdc_timesync = 1
> ccache_type = 4
> forwardable = true
> proxiable = true
> ........
>
> [realms]
> TTU.RED = {
> kdc = pdc
> admin_server = pdc
> }
> ........
>
>
>
> Use the same krb5.conf as on the DC
>
>
> Ok copied.
>
>
> Does /etc/krb5.keytab exist, if it does, remove it.
>
>
> Deleted, but nothing changed.
>
>
> You will need to try and rejoin the domain
>
> Does /etc/resolv.conf point to the DC ?
>
>
> Yes:
> cat /etc/resolv.conf
> domain TTU
> nameserver 192.168.2.251
>
>
> Please change /etc/resolv.conf to this:
>
> search ttu.red
>
> nameserver 192.168.2.251
>
>
> Changed.
>
>
>
> Are you sure that you are using the correct
> password for
> Administrator ?
>
>
> Yes, even i've tried to cange the PW to another, and other
> commands works fine, for example with "kinit
> administrator at TTU.RED" and "klist -c":
> Ticket cache: FILE:/tmp/krb5cc_0
> Default principal: administrator at TTU.RED
>
> Valid starting Expires Service principal
> 25/04/15 16:36:10 26/04/15 02:36:10
> krbtgt/TTU.RED at TTU.RED
> renew until 26/04/15 16:36:06
>
>
> I've linked the file showed on log to krb5.conf:
> ln -s /var/run/samba/smb_krb5/krb5.conf.TTU /etc/krb5.conf
>
> I got the same error:
> .......
> ads_sasl_spnego_bind: got OID=1.2.840.48018.1.2.2
> ads_sasl_spnego_bind: got OID=1.2.840.113554.1.2.2
> ads_sasl_spnego_bind: got OID=1.3.6.1.4.1.311.2.2.10
> ads_sasl_spnego_bind: got server principal name =
> not_defined_in_RFC4178 at please_ignore
> ads_krb5_mk_req: krb5_cc_get_principal failed (No
> existe el
> fichero o el directorio)
> ads_cleanup_expired_creds: Ticket in
> ccache[MEMORY:net_ads]
> expiration dom, 26 abr 2015 02:37:30 CEST
> kinit succeeded but ads_sasl_spnego_krb5_bind failed:
> Invalid
> credentials
> libnet_Join:
> libnet_JoinCtx: struct libnet_JoinCtx
> out: struct libnet_JoinCtx
> account_name : NULL
> netbios_domain_name : 'TTU'
> dns_domain_name : 'ttu.red'
> forest_name : 'ttu.red'
> dn : NULL
> domain_sid : *
> domain_sid :
> S-1-5-21-127850397-371183867-665961664 <tel:665961664>
> <tel:665961664 <tel:665961664>>
> modified_config : 0x00 (0)
> error_string : 'failed to
> connect to
> AD: Invalid credentials'
> domain_is_ad : 0x01 (1)
> result :
> WERR_GENERAL_FAILURE
> Failed to join domain: failed to connect to AD: Invalid
> credentials
> return code = -1
>
> I can run commands like "net ads rpc -U
> "Administrator" and
> works fine, i even can get some AD info:
> # net rpc info -U Administrator
> Enter Administrator's password:
> Domain Name: TTU
> Domain SID: S-1-5-21-127850397-371183867-665961664
> <tel:665961664> <tel:665961664 <tel:665961664>>
> Sequence number: 1
> Num users: 144
> Num domain groups: 42
> Num local groups: 26
>
>
> Is strange because as i said, if i create a new domain
> without
> upgrade then i can join that domain even without
> krb5-client
> installed.
>
>
>
> what OS are you using ?
>
>
> Debian 7u2
>
> what version of samba on the member server ?
>
>
> Same as AD:
> Version 4.1.17-Debian
>
> What packages have you installed to try and get samba working
>
>
> Same packages, latest from wheezy-backports. The only
> difference is that i've created a new domain instead upgrade
> the old 3.6 domain.
>
>
> anything else relevant, apparmor, selinux, firewall etc ?
>
>
> AD don't have any kind of firewall or apparmor. I don't have
> Apparmor, and the firewall have the basic configuration on
> client. I don't know about selinux, but the default
> configuracion has not changed.
>
> I'm starting to think is better to create a new domain and
> move the machines and users to the new domain.
>
> Greetings!!
>
>
>
> Rowland
>
> -- To unsubscribe from this list go to the following
> URL and read the
> instructions: https://lists.samba.org/mailman/options/samba
>
>
>
> OK, I use debian wheezy with samba from backports and this is how
> I set things up on a member server:
>
> Install these packages from backports:
>
> samba samba-common-bin samba-common samba-libs samba-vfs-modules \
> samba-dsdb-modules tdb-tools libwbclient0 libsmbclient winbind \
> ldb-tools zip arj mktemp acl attr quota krb5-config libnss-winbind \
> libpam-winbind libpam-krb5 krb5-user
>
> Create a smb.conf:
>
> [global]
> workgroup = TTU
> security = ADS
> realm = TTU.RED
>
> dedicated keytab file = /etc/krb5.keytab
> kerberos method = secrets and keytab
> server string = Samba 4 Client %h
>
> winbind enum users = no
> winbind enum groups = no
> winbind use default domain = yes
> winbind expand groups = 4
> winbind nss info = rfc2307
> winbind refresh tickets = Yes
> winbind offline logon = yes
> winbind normalize names = Yes
>
> ## map ids outside of domain to tdb files.
> idmap config *:backend = tdb
> idmap config *:range = 2000-9999
> ## map ids from the domain the ranges may not overlap !
> idmap config TTU : backend = ad
> idmap config TTU : schema_mode = rfc2307
> idmap config TTU : range = 10000-999999
>
> domain master = no
> local master = no
> preferred master = no
> os level = 20
> map to guest = bad user
> host msdfs = no
>
> # For ACL support on member server
> vfs objects = acl_xattr
> map acl inherit = Yes
> store dos attributes = Yes
>
> # Share Setting Globally
> unix extensions = no
> reset on zero vc = yes
> veto files = /.bash_logout/.bash_profile/.bash_history/.bashrc/
> hide unreadable = yes
>
> alter /etc/krb5.conf
>
> [libdefaults]
> default_realm = TTU.RED
> dns_lookup_realm = false
> dns_lookup_kdc = true
>
> Make sure that the kerberos config file /etc/krb5.conf is correct
>
> [libdefaults]
> default_realm = TTU.RED
> dns_lookup_realm = false
> dns_lookup_kdc = true
>
> Make sure that /etc/resolv.conf is pointing to the domain and the
> AD DC:
>
> search ttu.red
> nameserver <IP_OF_SAMBA4_AD_DC>
>
> You should now be able to join the domain:
>
> net ads join -U Administrator
>
> If this does not work, then it is more likely that the problem
> lies on the AD DC, unless it is something simple like blocked
> ports on the firewall, the easiest way to rule this out, is to
> turn off the firewall temporarily.
>
>
> Rowland
> --
> To unsubscribe from this list go to the following URL and read the
> instructions: https://lists.samba.org/mailman/options/samba
>
>
OK, but before you do, you could check the AD DC, could you post the
smb.conf from the DC ?
Does the DC have a fixed ip ?
Rowland
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