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authorJohn Terpstra <jht@samba.org>2003-04-24 00:46:28 +0000
committerJohn Terpstra <jht@samba.org>2003-04-24 00:46:28 +0000
commit665198ea2ffea3550b6c2fd53a0dfab3dcf05e71 (patch)
treec56e2e2ec48962fba51c12d509ff0102f5503d0f
parent203795681cfef4a19887be2b79a28c5031c0ce7d (diff)
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More updates: Fix typo in VFS docs, added docs on pam_smbpass.so to PAM.
(This used to be commit a1d6d56ba0af75282fb0d90db84ae8bbfa1836e0)
-rw-r--r--docs/docbook/projdoc/PAM-Authentication-And-Samba.sgml223
-rw-r--r--docs/docbook/projdoc/VFS.sgml2
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=&lt file &gt - specify an alternate path to the smb.conf
+ file.
+</programlisting><para>
+
+<para><programlisting>
+Thanks go to the following people:
+
+ * Andrew Morgan &lt morgan@transmeta.com &gt, for providing the Linux-PAM
+ framework, without which none of this would have happened
+
+ * Christian Gafton &lt gafton@redhat.com &gt and Andrew Morgan again, for the
+ pam_pwdb module upon which pam_smbpass was originally based
+
+ * Luke Leighton &lt lkcl@switchboard.net &gt 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
+ &lt http://www.samba.org/samba/team.html &gt, for creating a great product
+ and for giving this project a purpose
+
+ ---------------------
+ Stephen Langasek &lt vorlon@netexpress.net &gt
+</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>