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| author | John Terpstra <jht@samba.org> | 2003-04-24 00:47:24 +0000 | 
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| committer | John Terpstra <jht@samba.org> | 2003-04-24 00:47:24 +0000 | 
| commit | 488eacdcda71fe20c724fc80a85b4db4458e4093 (patch) | |
| tree | 9fdf8504e12ce00cb3b654f8d13857bc33dfbf5a | |
| parent | ecade958af7912313064c299ecfc05545c510818 (diff) | |
| download | samba-488eacdcda71fe20c724fc80a85b4db4458e4093.tar.gz samba-488eacdcda71fe20c724fc80a85b4db4458e4093.tar.bz2 samba-488eacdcda71fe20c724fc80a85b4db4458e4093.zip  | |
More updates: Fix typo in VFS, added docs for pam_smbpass.so to PAM.
(This used to be commit 2dc12c8c64616b01934aa98d5d0650b77d33194b)
| -rw-r--r-- | docs/docbook/projdoc/PAM-Authentication-And-Samba.sgml | 223 | ||||
| -rw-r--r-- | docs/docbook/projdoc/VFS.sgml | 2 | 
2 files changed, 203 insertions, 22 deletions
diff --git a/docs/docbook/projdoc/PAM-Authentication-And-Samba.sgml b/docs/docbook/projdoc/PAM-Authentication-And-Samba.sgml index ac9385f3de..a95baf0281 100644 --- a/docs/docbook/projdoc/PAM-Authentication-And-Samba.sgml +++ b/docs/docbook/projdoc/PAM-Authentication-And-Samba.sgml @@ -165,27 +165,7 @@ life though, every decision makes trade-offs, so you may want examine the  PAM documentation for further helpful information.  </para></note> -</sect1> - -<sect1> -<title>Distributed Authentication</title> - -<para> -The astute administrator will realize from this that the  -combination of <filename>pam_smbpass.so</filename>,  -<command>winbindd</command>, and a distributed  -passdb backend, such as ldap, will allow the establishment of a -centrally managed, distributed  -user/password database that can also be used by all  -PAM (eg: Linux) aware programs and applications. This arrangement  -can have particularly potent advantages compared with the  -use of Microsoft Active Directory Service (ADS) in so far as  -reduction of wide area network authentication traffic. -</para> - -</sect1> - -<sect1> +<sect2>  <title>PAM Configuration in smb.conf</title>  <para> @@ -210,5 +190,206 @@ password encryption.  <para>Default: <command>obey pam restrictions = no</command></para> +</sect2> + +<sect2> +<title>Password Synchronisation using pam_smbpass.so</title> + +<para> +pam_smbpass is a PAM module which can be used on conforming systems to +keep the smbpasswd (Samba password) database in sync with the unix +password file. PAM (Pluggable Authentication Modules) is an API supported +under some Unices, such as Solaris, HPUX and Linux, that provides a +generic interface to authentication mechanisms. +</para> + +<para> +For more information on PAM, see http://ftp.kernel.org/pub/linux/libs/pam/ +</para> + +<para> +This module authenticates a local smbpasswd user database.  If you require +support for authenticating against a remote SMB server, or if you're +concerned about the presence of suid root binaries on your system, it is +recommended that you use one of the other two following modules +</para> + +<para><programlisting> +	pam_smb - http://www.csn.ul.ie/~airlied/pam_smb/ +	  authenticates against any remote SMB server + +	pam_ntdom - ftp://ftp.samba.org/pub/samba/pam_ntdom/ +	  authenticates against an NT or Samba domain controller + +Options recognized by this module are as follows: + +        debug           -       log more debugging info +        audit           -       like debug, but also logs unknown usernames +        use_first_pass  -       don't prompt the user for passwords; +                                take them from PAM_ items instead +        try_first_pass  -       try to get the password from a previous +                                PAM module, fall back to prompting the user +        use_authtok     -       like try_first_pass, but *fail* if the new +                                PAM_AUTHTOK has not been previously set. +                                (intended for stacking password modules only) +        not_set_pass    -       don't make passwords used by this module +                                available to other modules. +        nodelay         -       don't insert ~1 second delays on authentication +                                failure. +        nullok          -       null passwords are allowed. +        nonull          -       null passwords are not allowed. Used to +                                override the Samba configuration. +        migrate         -       only meaningful in an "auth" context; +                                used to update smbpasswd file with a +                                password used for successful authentication. +        smbconf=< file >  -     specify an alternate path to the smb.conf +                                file. +</programlisting><para> + +<para><programlisting> +Thanks go to the following people: + +	* Andrew Morgan < morgan@transmeta.com >, for providing the Linux-PAM +	framework, without which none of this would have happened + +	* Christian Gafton < gafton@redhat.com > and Andrew Morgan again, for the +	pam_pwdb module upon which pam_smbpass was originally based + +	* Luke Leighton < lkcl@switchboard.net > for being receptive to the idea, +	and for the occasional good-natured complaint about the project's status +	that keep me working on it :) + +	* and of course, all the other members of the Samba team +	< http://www.samba.org/samba/team.html >, for creating a great product +	and for giving this project a purpose + +	--------------------- +	Stephen Langasek < vorlon@netexpress.net > +</programlisting></para> + +<para> +The following are examples of the use of pam_smbpass.so in the format of Linux +<filename>/etc/pam.d/</filename> files structure. Those wishing to implement this +tool on other platforms will need to adapt this appropriately. +</para> + +<sect3> +<title>Password Synchonisation Configuration</title> + +<para> +A sample PAM configuration that shows the use of pam_smbpass to make +sure private/smbpasswd is kept in sync when /etc/passwd (/etc/shadow) +is changed.  Useful when an expired password might be changed by an +application (such as ssh). +</para> + +<para><programlisting> +	#%PAM-1.0 +	# password-sync +	# +	auth       requisite        pam_nologin.so +	auth       required         pam_unix.so +	account    required         pam_unix.so +	password   requisite        pam_cracklib.so retry=3 +	password   requisite        pam_unix.so shadow md5 use_authtok try_first_pass +	password   required         pam_smbpass.so nullok use_authtok try_first_pass +	session    required         pam_unix.so +</programlisting></para> +</sect3> + +<sect3> +<title>Password Migration Configuration</title> + +<para> +A sample PAM configuration that shows the use of pam_smbpass to migrate +from plaintext to encrypted passwords for Samba.  Unlike other methods, +this can be used for users who have never connected to Samba shares: +password migration takes place when users ftp in, login using ssh, pop +their mail, etc. +</para> + +<para><programlisting> +	#%PAM-1.0 +	# password-migration +	# +	auth       requisite        pam_nologin.so +	# pam_smbpass is called IFF pam_unix succeeds. +	auth       requisite        pam_unix.so +	auth       optional         pam_smbpass.so migrate +	account    required         pam_unix.so +	password   requisite        pam_cracklib.so retry=3 +	password   requisite        pam_unix.so shadow md5 use_authtok try_first_pass +	password   optional         pam_smbpass.so nullok use_authtok try_first_pass +	session    required         pam_unix.so +</programlisting></para> +</sect3> + +<sect3> +<title>Mature Password Configuration</title> + +<para> +A sample PAM configuration for a 'mature' smbpasswd installation. +private/smbpasswd is fully populated, and we consider it an error if +the smbpasswd doesn't exist or doesn't match the Unix password. +</para> + +<para><programlisting> +	#%PAM-1.0 +	# password-mature +	# +	auth       requisite        pam_nologin.so +	auth       required         pam_unix.so +	account    required         pam_unix.so +	password   requisite        pam_cracklib.so retry=3 +	password   requisite        pam_unix.so shadow md5 use_authtok try_first_pass +	password   required         pam_smbpass.so use_authtok use_first_pass +	session    required         pam_unix.so +</programlisting></para> +</sect3> + +<sect3> +<title>Kerberos Password Integration Configuration</title> + +<para> +A sample PAM configuration that shows pam_smbpass used together with +pam_krb5.  This could be useful on a Samba PDC that is also a member of +a Kerberos realm. +</para> + +<para><programlisting> +	#%PAM-1.0 +	# kdc-pdc +	# +	auth       requisite        pam_nologin.so +	auth       requisite        pam_krb5.so +	auth       optional         pam_smbpass.so migrate +	account    required         pam_krb5.so +	password   requisite        pam_cracklib.so retry=3 +	password   optional         pam_smbpass.so nullok use_authtok try_first_pass +	password   required         pam_krb5.so use_authtok try_first_pass +	session    required         pam_krb5.so +</programlisting></para> +</sect3> + +</sect2>  </sect1> + +<sect1> +<title>Distributed Authentication</title> + +<para> +The astute administrator will realize from this that the  +combination of <filename>pam_smbpass.so</filename>,  +<command>winbindd</command>, and a distributed  +passdb backend, such as ldap, will allow the establishment of a +centrally managed, distributed  +user/password database that can also be used by all  +PAM (eg: Linux) aware programs and applications. This arrangement  +can have particularly potent advantages compared with the  +use of Microsoft Active Directory Service (ADS) in so far as  +reduction of wide area network authentication traffic. +</para> + +</sect1> +  </chapter> diff --git a/docs/docbook/projdoc/VFS.sgml b/docs/docbook/projdoc/VFS.sgml index 666eb4f62f..1f29a754b0 100644 --- a/docs/docbook/projdoc/VFS.sgml +++ b/docs/docbook/projdoc/VFS.sgml @@ -82,7 +82,7 @@ following information will be recorded:  </para>  <table frame="all"><title>Extended Auditing Log Information</title> -<tgroup cols="2" align="center") +<tgroup cols="2" align="center">  	<thead>  	<row><entry align="center">Log Level</entry><entry>Log Details - File and Directory Operations</entry></row>  	</thead>  | 
