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Marcio Demetrio Bacci

2015-Dec-01 16:45 UTC

[Samba] Problems with authentication in Samba4

Hi,

I'm having problems to authenticate users with winbind. I'm implementing
Squid3 Server and this server is working properly. But I think there is a
problem with winbind (perhaps winbind separator), because when I put ^ as
separator, how in Domain^Users, the error message appeared:


root at proxy:~# *echo "bacci Domain^Users" |
/usr/lib/squid3/wbinfo_group.pl
<http://wbinfo_group.pl>*
failed to call wbcLookupName: WBC_ERR_DOMAIN_NOT_FOUND
Could not lookup name Domain^Users
failed to call wbcStringToSid: WBC_ERR_INVALID_PARAM
Could not convert sid  to gid
ERR

But, when I put %20 as separator, how in Domain%20Users, the authentication
is OK.

root at proxy:~# *echo "bacci Domain%20Users" |
/usr/lib/squid3/wbinfo_group.pl <http://wbinfo_group.pl>*
OK

My environment is: Samba 4.2.1 on Debian 7.2 as DC
Samba 4.1.17 on Debian 7.2 and Squid 3.1 as Proxy.

Here is my smb.conf in Proxy Server (Member Server)

[global]
  netbios name = DC1
  workgroup = EMPRESA
  security = ads
  realm = EMPRESA.COM
  encrypt passwords = yes
  dedicated keytab file = /etc/krb5.keytab
  kerberos method = secrets and keytab
  preferred master = no
  idmap config *:backend = tdb
  idmap config *:range = 1000-3000
  idmap config EMPRESA:backend = ad
  idmap config EMPRESA:schema_mode = rfc2307
  idmap config EMPRESA:range = 10000-9999999

  winbind nss info = rfc2307
  winbind trusted domains only = no
  winbind use default domain = yes
  winbind enum users = yes
  winbind enum groups = yes
  winbind refresh tickets = yes

  vfs objects = acl_xattr
  map acl inherit = Yes
  store dos attributes = Yes
  username map = /etc/samba/user.map

Is there any way to fix this problem in the Winbind?

Rowland Penny

2015-Dec-01 17:05 UTC

head link

[Samba] Problems with authentication in Samba4

On 01/12/15 16:45, Marcio Demetrio Bacci wrote:> Hi,
>
> I'm having problems to authenticate users with winbind. I'm
implementing
> Squid3 Server and this server is working properly. But I think there is a
> problem with winbind (perhaps winbind separator), because when I put ^ as
> separator, how in Domain^Users, the error message appeared:
>
>
> root at proxy:~# *echo "bacci Domain^Users" |
/usr/lib/squid3/wbinfo_group.pl
> <http://wbinfo_group.pl>*
> failed to call wbcLookupName: WBC_ERR_DOMAIN_NOT_FOUND
> Could not lookup name Domain^Users
> failed to call wbcStringToSid: WBC_ERR_INVALID_PARAM
> Could not convert sid  to gid
> ERR
>
> But, when I put %20 as separator, how in Domain%20Users, the authentication
> is OK.
>
> root at proxy:~# *echo "bacci Domain%20Users" |
> /usr/lib/squid3/wbinfo_group.pl <http://wbinfo_group.pl>*
> OK
>
> My environment is: Samba 4.2.1 on Debian 7.2 as DC
> Samba 4.1.17 on Debian 7.2 and Squid 3.1 as Proxy.
>
> Here is my smb.conf in Proxy Server (Member Server)
>
> [global]
>    netbios name = DC1
>    workgroup = EMPRESA
>    security = ads
>    realm = EMPRESA.COM
>    encrypt passwords = yes
>    dedicated keytab file = /etc/krb5.keytab
>    kerberos method = secrets and keytab
>    preferred master = no
>    idmap config *:backend = tdb
>    idmap config *:range = 1000-3000
>    idmap config EMPRESA:backend = ad
>    idmap config EMPRESA:schema_mode = rfc2307
>    idmap config EMPRESA:range = 10000-9999999
>
>    winbind nss info = rfc2307
>    winbind trusted domains only = no
>    winbind use default domain = yes
>    winbind enum users = yes
>    winbind enum groups = yes
>    winbind refresh tickets = yes
>
>    vfs objects = acl_xattr
>    map acl inherit = Yes
>    store dos attributes = Yes
>    username map = /etc/samba/user.map
>
> Is there any way to fix this problem in the Winbind?
Why do you need to use '^' ?
getent group Domain^Users doesn't work either, but getent group Domain\ 
Users does

Rowland

L.P.H. van Belle

2015-Dec-02 07:54 UTC

head link

[Samba] Problems with authentication in Samba4

Hai, 

I cant remember exactly how my setup on wheezy did these, 
im running now Jessie squid 3.5.10 with 3 authentication layers and 
1 group check, and this works perfectly. 
( squid recompiled with ssl enabled from sid )  

For the wbinfo, ( i dont use that one but here a test ) 
echo "myusers my_internet_users"|  /usr/lib/squid/ext_wbinfo_group_acl
-d
show the correct output ( OK ) 
same for 
echo "myusers DOMAIN\\my_internet_users"| 
/usr/lib/squid/ext_wbinfo_group_acl -d

so i can only think of 3 things. 

1) you group is missing a GID 
2) the wbinfo_group from wheezy is to old. 
3) remove the space from the squid, but since your using domain users, 
Create a new group without spaces. 

If you want a nice squid example, just ask, i'll post my setup. 

Oh and above did also work good for me on wheezy with squid 3.4.8(backports) 

Greetz, 

Louis


> -----Oorspronkelijk bericht-----
> Van: samba [mailto:samba-bounces at lists.samba.org] Namens Rowland Penny
> Verzonden: dinsdag 1 december 2015 18:05
> Aan: samba at lists.samba.org
> Onderwerp: Re: [Samba] Problems with authentication in Samba4
> 
> On 01/12/15 16:45, Marcio Demetrio Bacci wrote:
> > Hi,
> >
> > I'm having problems to authenticate users with winbind. I'm
implementing
> > Squid3 Server and this server is working properly. But I think there
is
> a
> > problem with winbind (perhaps winbind separator), because when I put ^
> as
> > separator, how in Domain^Users, the error message appeared:
> >
> >
> > root at proxy:~# *echo "bacci Domain^Users" |
> /usr/lib/squid3/wbinfo_group.pl
> > <http://wbinfo_group.pl>*
> > failed to call wbcLookupName: WBC_ERR_DOMAIN_NOT_FOUND
> > Could not lookup name Domain^Users
> > failed to call wbcStringToSid: WBC_ERR_INVALID_PARAM
> > Could not convert sid  to gid
> > ERR
> >
> > But, when I put %20 as separator, how in Domain%20Users, the
> authentication
> > is OK.
> >
> > root at proxy:~# *echo "bacci Domain%20Users" |
> > /usr/lib/squid3/wbinfo_group.pl <http://wbinfo_group.pl>*
> > OK
> >
> > My environment is: Samba 4.2.1 on Debian 7.2 as DC
> > Samba 4.1.17 on Debian 7.2 and Squid 3.1 as Proxy.
> >
> > Here is my smb.conf in Proxy Server (Member Server)
> >
> > [global]
> >    netbios name = DC1
> >    workgroup = EMPRESA
> >    security = ads
> >    realm = EMPRESA.COM
> >    encrypt passwords = yes
> >    dedicated keytab file = /etc/krb5.keytab
> >    kerberos method = secrets and keytab
> >    preferred master = no
> >    idmap config *:backend = tdb
> >    idmap config *:range = 1000-3000
> >    idmap config EMPRESA:backend = ad
> >    idmap config EMPRESA:schema_mode = rfc2307
> >    idmap config EMPRESA:range = 10000-9999999
> >
> >    winbind nss info = rfc2307
> >    winbind trusted domains only = no
> >    winbind use default domain = yes
> >    winbind enum users = yes
> >    winbind enum groups = yes
> >    winbind refresh tickets = yes
> >
> >    vfs objects = acl_xattr
> >    map acl inherit = Yes
> >    store dos attributes = Yes
> >    username map = /etc/samba/user.map
> >
> > Is there any way to fix this problem in the Winbind?
> 
> Why do you need to use '^' ?
> getent group Domain^Users doesn't work either, but getent group Domain\
> Users does
> 
> Rowland
> 
> 
> --
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