KOPANO-LDAP.CFG(5)

NAME
kopano-ldap.cfg - The Kopano LDAP configuration file

SYNOPSIS

ldap.cfg

DESCRIPTION

The ldap.cfg is a configuration file for LDAP user plugin. All options to correctly retrieve user and group information can be set here.

FILE FORMAT

The file consists of one big section, but parameters can be grouped by functionality.

The parameters are written in the form:

name = value

The file is line-based. Each newline-terminated line represents either a comment, nothing, a parameter or a directive. A line beginning with # is considered a comment, and will be ignored by Kopano. Parameter names are case sensitive. Lines beginning with ! are directives.

Directives are written in the form:

!directive [argument(s)]

The following directives exist:

include
    Include and process argument

    Example: !include common.cfg

propmap
    Propmap delivers the capabilities to map additional attributes to addressbook properties (e.g. firstname, lastname, telephonenumber).

    In the propmap the configuration names must be the hex property tag of the requested property. The value given to the configuration name must be the LDAP attribute to which the property should be mapped.

    Example: !propmap ldap.propmap.cfg

EXPLANATION OF EACH PARAMETER

  ldap_uri

Specifies the URIs of one or more LDAP server(s) to use, without any DN portion, such as "ldap://server:389/", "ldaps://server:636/" or "ldapi:///". The first available server will be used; there is no round-robin.

Default: ldap://localhost:389/

  ldap_starttls

Request that any LDAP connections be secured with TLS, and reject the connection if this security cannot be established. See the OpenLDAP documentation for setting up (/etc/openldap/)ldap.cfg and TLS requirements.

Default: no

  ldap_server_charset

The charset that the LDAP server uses to store strings. All strings sent to the LDAP server or retrieved from the server will be interpreted in this charset. In most setups, utf-8 is used, but may also be iso-8859-15. All charsets supported by the system iconv() are supported here.

Default: utf-8

  ldap_bind_user

The bind dn as to connect to the LDAP server. Leave empty to connect anonymous.

Default: (empty)

  ldap_bind_passwd

When ldap_bind_user is a valid DN, this should be filled in too.

Default: (empty)

  ldap_network_timeout

The timeout for network operations in seconds.

Default: 30

  ldap_last_modification_attribute

This value is used to detect changes in the item in the LDAP server. Since it is a standard LDAP attribute, you should never have to change this. It is mainly used for addressbook synchronisation between your server and your offline data.

Default: modifyTimeStamp

  ldap_page_size

Limit result sets in pages of this size, downloading fewer results at a time from the LDAP server.

Default: 1000

  ldap_search_base

This is the subtree entry where all objects are defined in the LDAP server.

Example: dc=kopano,dc=com

Default: (empty)

  ldap_object_type_attribute

An object is defined by this attribute what type it is, e.g. user, group, etc. Every object type should have a unique value in this attribute in order to define what which entry is.

The value of this attribute must be specified in the ldap_*_type_attribute_value settings. Each of those settings may specify multiple values for the type attribute, separated by commas. All of these values must be present in the objects type attribute for a match to be made and the object to be recognised as that type.

It is possible for ambiguities to arise by setting the same string for multiple ldap_*_type_attribute_value settings. This ambiguity will be resolved by preferring objects with more matching values. If the ambiguity cannot be resolved in this way, then the first possibility is chosen from the list (addresslist, tenant, dynamic group, group, contact, user).

Default: objectClass

  ldap_user_type_attribute_value

The value in ldap_object_type_attribute which defines a user.

Default for OpenLDAP: posixAccount

Default for ADS: user

  ldap_group_type_attribute_value

The value in ldap_object_type_attribute which defines a group.

Default for OpenLDAP: posixGroup

Default for ADS: group

  ldap_contact_type_attribute_value

The value in ldap_object_type_attribute which defines a contact.

Default for OpenLDAP: inetOrgPerson

Default for ADS: contact

  ldap_company_type_attribute_value

The value in ldap_object_type_attribute which defines a tenant. This option is only used in multi-tenancy installations.

Default for OpenLDAP: organizationalUnit

Default for ADS: kopano-company

  ldap_addresslist_type_attribute_value

The value in ldap_object_type_attribute which defines an addresslist.

Default: kopano-addresslist

  ldap_dynamicgroup_type_attribute_value

The value in ldap_object_type_attribute which defines a dynamic group.

Default: kopano-dynamicgroup

  ldap_user_search_filter

Adds an extra filter to the user search.

Hint: Use the kopanoAccount attribute in the filter to differentiate between non-kopano and kopano users.

Default for OpenLDAP: (empty)

Default for ADS: (objectCategory=Person)

  ldap_user_unique_attribute

This is the unique attribute of a user which is never going to change, unless the user is removed from LDAP. When this value changes, Kopano will remove the previous user and store from the database, and create a new user with this unique value.

Default for OpenLDAP: uidNumber

Default for ADS: objectGUID

  ldap_user_unique_attribute_type

Contents type for the ldap_user_unique_attribute. This value can be binary or text.

Default for OpenLDAP: text

Default for ADS: binary

  ldap_fullname_attribute

This value is the fullname of a user. It will be used on outgoing messages, and store names.

Default: cn

  ldap_loginname_attribute

This value is the loginname of a user. This is what the user uses to login on kopano. The DAgent will use this value to open the store of the user.

Default for OpenLDAP: uid

Default for ADS: sAMAccountName

  ldap_password_attribute

This value is the password of a user. The ldap_bind_user should have enough access rights to read the password field.

Default for OpenLDAP: userPassword

Default for ADS: unicodePwd

  ldap_emailaddress_attribute

This value is the email address of a user. It will be used to set the From on outgoing messages.

Default: mail

  ldap_emailaliases_attribute

This value is the email aliases of a user. It can be used to find extra valid email accounts for incoming email. These email addresses cannot be used for outgoing email.

Default: kopanoAliases

  ldap_isadmin_attribute

This value indicates if a user has administrator rights. 0 or not presents means no. 1 means yes. In multi-tenancy environment a value of 1 means that the user is administrator over his own tenant. A value of 2 means he is administrator over all companies within the environment.

Default: kopanoAdmin

  ldap_nonactive_attribute

This value indicates if a user is nonactive. Nonactive users cannot login, but the store can be used as a shared store for other users.

Setting this value to 1 will make a mailbox nonactive. The nonactive attribute provided by the Kopano schema for nonactive users is kopanoSharedStoreOnly

Default: kopanoSharedStoreOnly

  ldap_resource_type_attribute

This attribute can change the type of a non-active user. The value of this attribute can be room or equipment to make it such a resource. If this attribute is not present, or not one of the previously described values, the user will be a normal non-active user.

Default: kopanoResourceType

  ldap_resource_capacity_attribute

Resources often have a limited capacity. Use this attribute to control this value. user.

Default: kopanoResourceCapacity

  ldap_sendas_attribute

This attribute contains the list of users for which the user can use the sendas feature.

Default: kopanoSendAsPrivilege

  ldap_sendas_attribute_type

Contents type for the ldap_sendas_attribute this value can be dn, binary or text.

Default for OpenLDAP: text

Default for ADS: dn

  ldap_sendas_relation_attribute

This value is used to find the users in the sendas list.

Defaults to empty value, using the ldap_user_unique_attribute setting. By using the DN, you can also add groups to the sendas list.

Default for OpenLDAP: (empty)

Default for ADS: distinguishedName

  ldap_user_certificate_attribute

The attribute which contains the user's public certificate to be used for encrypted S/MIME messages. Both Active Directory and OpenLDAP use the same ldap attribute by default. The format of the certificate should be the binary DER format.

Default: userCertificate

  ldap_group_search_filter

Adds an extra filter to the group search.

Hint: Use the kopanoAccount attribute in the filter to differentiate between non-kopano and kopano groups.

Default for OpenLDAP: (empty)

Default for ADS: (objectCategory=Group)

  ldap_group_unique_attribute

This is the unique attribute of a group which is never going to change, unless the group is removed from LDAP. When this value changes, Kopano will remove the previous group from the database, and create a new group with this unique value.

Default for OpenLDAP: gidNumber

Default for ADS: objectSid

  ldap_group_unique_attribute_type

Contents type for the ldap_group_unique_attribute this value can be binary or text.

Default for OpenLDAP: text

Default for ADS: binary

  ldap_groupname_attribute

This value is the name of a group.

Default: cn

  ldap_groupmembers_attribute

This value is the member list of a group.

Default for OpenLDAP: memberUid

Default for ADS: member

  ldap_groupmembers_attribute_type

Contents type for the ldap_groupmembers_attribute this value can be dn, binary or text.

Default for OpenLDAP: text

Default for ADS: dn

  ldap_groupmembers_relation_attribute

This value is used to find the users in a group if ldap_groupmembers_attribute_type is text.

Defaults to empty value, using the ldap_user_unique_attribute setting.

Default: (empty)

  ldap_group_security_attribute

If this attribute is present, you can make a group a security group. These groups can be used to place permissions on folders.

Default for OpenLDAP: kopanoSecurityGroup

Default for ADS: groupType

  ldap_group_security_attribute_type

The type of the ldap_group_security_attribute is very different for ADS and OpenLDAP. The value of this option can be boolean or ads. The ads option only looks at the highest bit in the numeric value of the groupType attribute.

Default for OpenLDAP: boolean

Default for ADS: ads

  ldap_company_search_filter

Add an extra filter to the tenant search.

Hint: Use the kopanoAccount attribute in the filter to differentiate between non-kopano and kopano companies.

Default for OpenLDAP: (empty)

Default for ADS: (objectCategory=Company)

  ldap_company_unique_attribute

This is the unique attribute of a tenant which is never going to change, unless the tenant is removed from LDAP. When this value changes, Kopano will remove the previous tenant from the database, and create a new tenant with this unique value.

Default for OpenLDAP: ou

Default for ADS: objectSid

  ldap_company_unique_attribute_type

Contents type for the ldap_company_unique_attribute this value can be binary or text.

Default for OpenLDAP: text

Default for ADS: binary

  ldap_companyname_attribute

This value is the name of a tenant.

Default: cn

  ldap_company_view_attribute

This attribute contains the list of tenants which can view the members of the tenant where this attribute is set on. tenants which are not listed in this attribute cannot see the presence of the tenant space itself nor its members.

Default: kopanoViewPrivilege

  ldap_company_view_attribute_type

Contents type for the ldap_company_view_attribute this value can be dn, binary or text.

Default for OpenLDAP: text

Default for ADS: dn

  ldap_company_view_relation_attribute

The attribute of the tenant which is listed in ldap_company_view_attribute.

Default: (empty, using the ldap_company_unique_attribute)

  ldap_company_admin_attribute

This attribute contains the list of users outside of the selected tenant space who are administrator over the selected tenant space. Note that local users should not be listed as administrator here, those users need the ldap_isadmin_attribute attribute.

Default: kopanoAdminPrivilege

  ldap_company_admin_attribute_type

Contents type for the ldap_company_admin_attribute this value can be dn, binary or text.

Default for OpenLDAP: text

Default for ADS: dn

  ldap_company_admin_relation_attribute

The attribute of the user which is listed in ldap_company_admin_attribute.

Default: (empty, using the ldap_user_unique_attribute)

  ldap_company_system_admin_attribute

This attribute contains the user who acts as the system administrator of this tenatn space. This can either be a local user or a user from a different tenant space. At the moment this user is set as the sender of quota warning emails.

Default: kopanoSystemAdmin

  ldap_company_system_admin_attribute_type

Contents type for the ldap_company_system_admin_attribute this value can be dn, binary or text.

Default for OpenLDAP: text

Default for ADS: dn

  ldap_company_system_admin_relation_attribute

The attribute of the user which is listed in ldap_system_admin_attribute.

Default: (empty, using the ldap_user_unique_attribute)

  ldap_addresslist_search_filter

Add a filter to the addresslist search.

Hint: Use the kopanoAccount attribute in the filter to differentiate between non-kopano and kopano addresslists.

Default: (objectClass=kopano-addresslist)

  ldap_addresslist_unique_attribute

This is the unique attribute of a addresslist which is never going to change, unless the addresslist is removed from LDAP. When this value changes, Kopano will remove the previous addresslist from the database, and create a new addresslist with this unique value.

Default: cn

  ldap_addresslist_unique_attribute_type

Contents type for the ldap_addresslist_unique_attribute this value can be dn, binary or text. On LDAP this value should be text. On ADS this value should be dn

Default: text

  ldap_addresslist_filter_attribute

This is the name of the attribute on the addresslist object that specifies the filter to be applied for this addresslist. All users matching this filter AND matching the default ldap_user_search_filter will be included in the addresslist.

Default: kopanoFilter

  ldap_addresslist_search_base_attribute

This is the name of the attribute on the addresslist object that specifies the search base to be applied for this addresslist.

Default: kopanoBase

  ldap_addresslist_name_attribute

The attribute containing the name of the addresslist

Default: cn

  ldap_dynamicgroup_search_filter

Add an extra filter to the dynamicgroup search.

Hint: Use the kopanoAccount attribute in the filter to differentiate between non-kopano and kopano dynamic groups.

Default: (empty)

  ldap_dynamicgroup_unique_attribute

This is the unique attribute of a dynamicgroup which is never going to change, unless the dynamicgroup is removed from LDAP. When this value changes, Kopano will remove the previous dynamicgroup from the database, and create a new dynamicgroup with this unique value.

Default: cn

  ldap_dynamicgroup_unique_attribute_type

Contents type for the ldap_dynamicgroup_unique_attribute this value can be binary or text. On LDAP this value should be text. On ADS this value should be binary

Default: text

  ldap_dynamicgroup_filter_attribute

This is the name of the attribute on the dynamicgroup object that specifies the filter to be applied for this dynamicgroup. All users matching this filter AND matching the default search filters for objects will be included in the dynamicgroup.

Default: kopanoFilter

  ldap_dynamicgroup_search_base_attribute

This is the name of the attribute on the dynamicgroup object that specifies the search base to be applied for this dynamicgroup.

Default: kopanoBase

  ldap_dynamicgroup_name_attribute

The attribute containing the name of the dynamicgroup.

Default: cn

  ldap_quotaoverride_attribute

Default: kopanoQuotaOverride

  ldap_warnquota_attribute

Default: kopanoQuotaWarn

  ldap_softquota_attribute

Default: kopanoQuotaSoft

  ldap_hardquota_attribute

Default: kopanoQuotaHard

  ldap_userdefault_quotaoverride_attribute

Default: kopanoUserDefaultQuotaOverride

  ldap_userdefault_warnquota_attribute

Default: kopanoUserDefaultQuotaWarn

  ldap_userdefault_softquota_attribute

Default: kopanoUserDefaultQuotaSoft

  ldap_userdefault_hardquota_attribute

Default: kopanoUserDefaultQuotaHard

  ldap_quota_multiplier

This value is used to multiply the quota values to bytes. When the values in LDAP are in Kb, use 1024 here.

Default: 1

  ldap_quota_userwarning_recipients_attribute

This attribute contains the list of users who will receive an email when a user exceeds his quota. User who exceeds his quota will be automatically added to the recipients list, this list only indicates who else will be notified.

Default: kopanoQuotaUserWarningRecipients

  ldap_quota_userwarning_recipients_attribute_type

Contents type for the ldap_quota_userwarning_recipients_attribute this value can be dn, binary or text. On LDAP this value should be text. On ADS this value should be dn

Default: text

  ldap_quota_userwarning_recipients_relation_attribute

The attribute of the user which is listed in ldap_quota_userwarning_recipients_attribute

Default: (empty, using ldap_user_unique_attribute)

  ldap_quota_companywarning_recipients_attribute

This attribute contains the list of users who will receive an email when a tenant exceeds its quota. The system administrator of the tenant that is over quota will automatically be added to the recipients list, this list only indicates who else will be notified.

Default: kopanoQuotaCompanyWarningRecipients

  ldap_quota_companywarning_recipients_attribute_type

Contents type for the ldap_quota_companywarning_recipients_attribute this value can be dn, binary or text. On LDAP this value should be text. On ADS this value should be dn

Default: text

  ldap_quota_companywarning_recipients_relation_attribute

The attribute of the user which is listed in ldap_quota_companywarning_recipients_attribute

Default: (empty, using ldap_user_unique_attribute)

  ldap_addressbook_hide_attribute

The attribute indicating the object must be hidden from the addressbook. The object will still be detected as kopano user and is allowed to login and work as regular kopano user, but will not be visible in the addressbook for other users.

Default: kopanoHidden

  ldap_object_search_filter

When searching in the addressbook, this filter will be used. Normally, the storage server will only search in the unique attribute, loginname, fullname and emailaddress. You might want to search in more fields, like lastname. Kopano also uses a postfix wildcard only. Using the * wildcard with prefixes makes a search slower, but can return more results.

Hint: Use the kopanoAccount attribute in the filter to differentiate between non-kopano and kopano objects.

You can set a custom search filter here. %s will be replaced with the string being searched.

Active Directory has a shortcut for searching in the addressbook using the anr attribute. This is recommended on ADS installations.

Default: (empty)

Recommended for ADS installations: (anr=%s)

Optional for OpenLDAP installations: (|(mail=%s*)(uid=%s*)(cn=*%s*)(displayName=*%s*)(givenName=*%s*)(sn=*%s*))

  ldap_filter_cutoff_elements

When the ldap plugin retrieves information from the LDAP Server, large queries can be created to retrieve data for multiple objects at once. These large queries can perform badly on some LDAP server implementations. This option limits the number of elements that can be retrieved in one search filter and therefore limits the size of the filter. Instead, a broader search filter is created which retrieves all objects from the LDAP server. This results in slightly higher processing overhead and network activity, but with the bonus that the query can be served by the LDAP server much faster (a factor of 40 in 5000-object queries has been observed).

Setting this value to 0 will never limit the filter, setting it to a value of 1 will always limit the filter (since all queries will be retrieving one or more objects).

Default: 1000

  ldap_membership_cache_size

Memberships information (users being member of groups, groups being members of groups, etc.) is cached.

Default: 256K

When ldap_user_unique_attribute=uidNumber, each object and each membership ("entity \in group") occupies 72 and 88 units, respectively.

  ldap_membership_cache_lifetime

Validity period for entries in the membership cache, in minutes. If a change to the memberships is made in LDAP, it may take up to this amount of time for the LDAP plugin to pick it up.

Default: 5

FILES

/etc/kopano/server.cfg
    The server configuration file.

/etc/kopano/ldap.cfg
    The Kopano LDAP configuration file.

SEE ALSO

kopano-server(8), kopano-server.cfg(5)