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GNU/Linux |
RedHat 9.0(Shrike) |
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squid_ldap_group(8) |
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squid_ldap_group - Squid LDAP external acl group helper
squid_ldap_group -b "base DN" -f "LDAP search filter" [options] [ldap_server_name[:port]...]
This helper allows Squid to connect to a LDAP directory to authorize users via LDAP groups.
The program
operates by searching with a search filter based on the
users login name and requested group, and if a match is
found it is determined that the user belongs to the group.
-b basedn (REQUIRED)
Specifies the base DN under which the groups are located.
-B basedn
Specifies the base DN under which the users are located (if different)
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-g |
Specifies that the first query argument sent to the helper by Squid is a extension to the basedn and will be temporarily added infront of the global basedn for this query. |
-f filter
LDAP search filter used to search the LDAP directory for any matching group memberships. In the filter %u will be replaced by the user login name (or DN if the -F or -u options are used) and %g by the requested group name.
-F filter
LDAP search filter used to search the LDAP directory for any matching users. In the filter %s will be replaced by the user login name. If % is to be included literally in the filter then use %%.
-u attr
LDAP attribute used to construct the user DN from the login name and base dn.
-s base|one|sub
search scope. Defaults to ’sub’.
base object only, one level below the base object or subtree below the base object
-D binddn -w password
The DN and password to bind as while performing searches. Required if the directory does not allow anonymous searches.
As the password needs to be printed in plain text in your Squid configuration and will be sent on the command line to the helper it is strongly recommended to use a account with minimal associated privileges. This to limit the damage in case someone could get hold of a copy of your Squid configuration file or extracts the password used from a process listing.
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-P |
Use a persistent LDAP connection. Normally the LDAP connection is only open while validating a username to preserve resources at the LDAP server. This option causes the LDAP connection to be kept open, allowing it to be reused for further user validations. Recommended for larger installations. | ||
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-R |
do not follow referrals |
-a never|always|search|find
when to dereference aliases. Defaults to ’never’
never dereference aliases (default), always dereference aliases, only while searching or only to find the base object
-h ldapserver
Specify the LDAP server to connect to
-p ldapport
Specify an alternate TCP port where the ldap server is listening if other than the default LDAP port 389.
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-S |
Strip NT domain name component from usernames (/ or \ separated) |
This helper is intended to be used as a external_acl_type helper from squid.conf.
external_acl_type
ldap_group %LOGIN /path/to/squid_ldap_group ...
acl group1 ldap_group Group1
acl group2 ldap_gorup Group2
When constructing search filters it is strongly recommended to test the filter using ldapsearch before you attempt to use squid_ldap_group. This to verify that the filter matches what you expect.
This manual page was written by Henrik Nordstrom <hno@marasystems.com>
squid_ldap_group is written by Flavio Pescuma <flavio@marasystems.com> and Henrik Nordstrom <hno@squid-cache.org>, based on prior work in squid_ldap_auth by Glen Newton <glen.newton@nrc.ca>
Max 16 occurances of %s in the -u argument is supported.
Any questions on usage can be sent to Squid Users <squid-users@squid-cache.org>, or to your favorite LDAP list/friend if the question is more related to LDAP than Squid.
Report bugs or bug-fixes to Squid Bugs <squid-bugs@squid-cache.org> or ideas for new improvements to Squid Developers <squid-dev@squid-cache.org>
squid_ldap_auth(8),
ldapsearch(1),
Your favorite LDAP documentation
RFC2254 - The String Representation of LDAP Search
Filters,
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squid_ldap_group(8) | |