Bug 864832 - smbclient ignores rdns setting in krb5.conf
smbclient ignores rdns setting in krb5.conf
Product: Fedora
Classification: Fedora
Component: samba (Show other bugs)
Unspecified Unspecified
unspecified Severity unspecified
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Assigned To: Guenther Deschner
Fedora Extras Quality Assurance
Depends On:
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Reported: 2012-10-10 04:35 EDT by Marko Myllynen
Modified: 2014-02-05 07:32 EST (History)
7 users (show)

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Last Closed: 2014-02-05 07:32:02 EST
Type: Bug
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Description Marko Myllynen 2012-10-10 04:35:47 EDT
Description of problem:
Unlike other applications doing GSSAPI/Kerberos authentication to a server smbclient does not respect the rdns setting in /etc/krb5.conf.

From krb5.conf(5):

       rdns   If  set to false, prevent the use of reverse DNS resolution when
              translating hostnames into service principal names.  Defaults to
              true.   Setting this flag to false is more secure, but may force
              users to exclusively  use  fully  qualified  domain  names  when
              authenticating to services.

smbclient should respect rdns setting in /etc/krb5.conf.
Comment 1 Tomasz Kepczynski 2013-03-31 17:09:40 EDT
It looks like samba creates and uses its own private and probably per domain config file in /var/lib/samba/smb_krb5 directory. It messes my setup of allowed encryption types.

I guess this is the file you need to chase as well.
Comment 2 Fedora End Of Life 2013-12-21 04:05:46 EST
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Comment 3 Fedora End Of Life 2014-02-05 07:32:05 EST
Fedora 18 changed to end-of-life (EOL) status on 2014-01-14. Fedora 18 is
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