AUTOFS_LDAP_AUTH.CONF(5) File Formats Manual AUTOFS_LDAP_AUTH.CONF(5)
autofs_ldap_auth.conf - autofs LDAP authentication configuration
LDAP authenticated binds, TLS encrypted connections and certification
may be used by setting appropriate values in the autofs
authentication configuration file and configuring the LDAP client
with appropriate settings. The default location of this file is
@mapdir@/autofs_ldap_auth.conf. If this file exists it will be used
to establish whether TLS or authentication should be used.
An example of this file is:
<?xml version="1.0" ?>
<autofs_ldap_sasl_conf
usetls="yes"
tlsrequired="no"
authrequired="no"
authtype="DIGEST-MD5"
user="xyz"
secret="abc"
/>
If TLS encryption is to be used the location of the Certificate Au‐
thority certificate must be set within the LDAP client configuration
in order to validate the server certificate. If, in addition, a cer‐
tified connection is to be used then the client certificate and pri‐
vate key file locations must also be configured within the LDAP
client.
This files contains a single XML element, as shown in the example
above, with several attributes.
The possible attributes are:
usetls="yes"|"no"
Determines whether an encrypted connection to the ldap server
should be attempted.
tlsrequired="yes"|"no"
This flag tells whether the ldap connection must be encrypted.
If set to "yes", the automounter will fail to start if an
encrypted connection cannot be established.
authrequired="yes"|"no"|"autodetect"|"simple"
This option tells whether an authenticated connection to the
ldap server is required in order to perform ldap queries. If
the flag is set to yes, only sasl authenticated connections
will be allowed. If it is set to no then authentication is not
needed for ldap server connections. If it is set to autodetect
then the ldap server will be queried to establish a suitable
sasl authentication mechanism. If no suitable mechanism can
be found, connections to the ldap server are made without
authentication. Finally, if it is set to simple, then simple
authentication will be used instead of SASL.
authtype="GSSAPI"|"LOGIN"|"PLAIN"|"ANONYMOUS"|"DIGEST-MD5|EXTERNAL"
This attribute can be used to specify a preferred
authentication mechanism. In normal operations, the
automounter will attempt to authenticate to the ldap server
using the list of supportedSASLmechanisms obtained from the
directory server. Explicitly setting the authtype will bypass
this selection and only try the mechanism specified. The
EXTERNAL mechanism may be used to authenticate using a client
certificate and requires that authrequired set to "yes" if
using SSL or usetls, tlsrequired and authrequired all set to
"yes" if using TLS, in addition to authtype being set to
EXTERNAL.
If using authtype EXTERNAL two additional configuration
entries are required:
external_cert="<client certificate path>"
This specifies the path of the file containing the client
certificate.
external_key="<client certificate key path>"
This specifies the path of the file containing the client
certificate key.
These two configuration entries are mandatory when using the
EXTERNAL method as the HOME environment variable cannot be
assumed to be set or, if it is, to be set to the location we
expect.
user="<username>"
This attribute holds the authentication identity used by
authentication mechanisms that require it. Legal values for
this attribute include any printable characters that can be
used by the selected authentication mechanism.
secret="<password>"
This attribute holds the secret used by authentication
mechanisms that require it. Legal values for this attribute
include any printable characters that can be used by the
selected authentication mechanism.
encoded_secret="<base64 encoded password>"
This attribute holds the base64 encoded secret used by
authentication mechanisms that require it. If this entry is
present as well as the secret entry this value will take
precedence.
clientprinc="<GSSAPI client principal>"
When using GSSAPI authentication, this attribute is consulted
to determine the principal name to use when authenticating to
the directory server. By default, this will be set to
"autofsclient/<fqdn>@<REALM>.
credentialcache="<external credential cache path>"
When using GSSAPI authentication, this attribute can be used
to specify an externally configured credential cache that is
used during authentication. By default, autofs will setup a
memory based credential cache.
auto.master(5), autofs.conf(5),
This manual page was written by Ian Kent <raven@themaw.net>.
This page is part of the autofs (automount) project. Information
about the project can be found at ⟨http://www.autofs.org/⟩. If you
have a bug report for this manual page, send it to
autofs@vger.kernel.org. This page was obtained from the project's
upstream Git repository
⟨git://git.kernel.org/pub/scm/linux/storage/autofs/autofs.git⟩ on
2017-07-05. If you discover any rendering problems in this HTML ver‐
sion of the page, or you believe there is a better or more up-to-date
source for the page, or you have corrections or improvements to the
information in this COLOPHON (which is not part of the original man‐
ual page), send a mail to man-pages@man7.org
19 Feb 2010 AUTOFS_LDAP_AUTH.CONF(5)
Pages that refer to this page: autofs(5), autofs.conf(5), auto.master(5), autofs(8), automount(8)