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SLAPO-REMOTEAUTH(5) File Formats Manual SLAPO-REMOTEAUTH(5) NAME slapo-remoteauth - Delegate authentication requests to remote directo- ries, e.g. Active Directory SYNOPSIS /usr/local/etc/openldap/slapd.conf DESCRIPTION The remoteauth overlay to slapd(8) provides passthrough authentication to remote directory servers, e.g. Active Directory, for LDAP simple bind operations. The local LDAP entry referenced in the bind operation is mapped to its counterpart in the remote directory. An LDAP bind op- eration is performed against the remote directory and results are re- turned based on those of the remote operation. A slapd server configured with the remoteauth overlay handles an au- thentication request based on the presence of userPassword in the local entry. If the userPassword is present, authentication is performed lo- cally, otherwise the remoteauth overlay performs the authentication re- quest to the configured remote directory server. CONFIGURATION The following options can be applied to the remoteauth overlay within the slapd.conf file. All options should follow the overlay remoteauth directive. overlay remoteauth This directive adds the remoteauth overlay to the current data- base, see slapd.conf(5) for details. remoteauth_dn_attribute <dnattr> Attribute in the local entry that is used to store the bind DN to a remote directory server. remoteauth_mapping <domain> <hostname|LDAP URI|file:///path/to/list_of_hostnames> For a non-Windows deployment, a domain can be considered as a collection of one or more hosts to which slapd server authent- cates against on behalf of authenticating users. For a given domain name, the mapping specifies the target server(s), e.g., Active Directory domain controller(s), to connect to via LDAP. The second argument can be given either as a hostname, an LDAP URI, or a file containing a list of hostnames/URIs, one per line. The hostnames are tried in sequence until the connection succeeds. This option can be provided more than once to provide mapping information for different domains. For example: remoteauth_mapping americas file:///path/to/americas.domain.hosts remoteauth_mapping asiapacific file:///path/to/asiapacific.domain.hosts remoteauth_mapping emea emeadc1.emea.example.com remoteauth_domain_attribute <attr> Attribute in the local entry that specifies the domain name, any text after "\" or ":" is ignored. remoteauth_default_domain <default domain> Default domain. remoteauth_default_realm <server> Fallback server to connect to for domains not specified in re- moteauth_mapping. remoteauth_retry_count <num> Number of connection retries attempted. Default is 3. remoteauth_store <on|off> Whether to store the password in the local entry on successful bind. Default is off. remoteauth_tls [starttls=yes] [tls_cert=<file>] [tls_key=<file>] [tls_cacert=<file>] [tls_cacertdir=<path>] [tls_reqcert=never|allow|try|demand] [tls_reqsan=never|allow|try|demand] [tls_cipher_suite=<ciphers>] [tls_ecname=<names>] [tls_crlcheck=none|peer|all] Remoteauth specific TLS configuration, see slapd.conf(5) for more details on each of the parameters and defaults. remoteauth_tls_peerkey_hash <hostname> <hashname>:<base64 of public key hash> Mapping between remote server hostnames and their public key hashes. Only one mapping per hostname is supported and if any pins are specified, all hosts need to be pinned. If set, pinning is in effect regardless of whether or not certificate name validation is enabled by tls_reqcert. EXAMPLE A typical example configuration of remoteauth overlay for AD is shown below (as a slapd.conf(5) snippet): database <database> #... overlay remoteauth remoteauth_dn_attribute seeAlso remoteauth_domain_attribute associatedDomain remoteauth_default_realm americas.example.com remoteauth_mapping americas file:///home/ldap/etc/remoteauth.americas remoteauth_mapping emea emeadc1.emea.example.com remoteauth_tls starttls=yes tls_reqcert=demand tls_cacert=/home/ldap/etc/example-ca.pem remoteauth_tls_peerkey_hash ldap.americas.tld sha256:Bxv3MkLoDm6gt/iDfeGNdNNqa5TTpPDdIwvZM/cIgeo= Where seeAlso contains the AD bind DN for the user, associatedDomain contains the Windows Domain Id in the form of <NT-domain-name>:<NT- username> in which anything following, including ":", is ignored. SEE ALSO slapd.conf(5), slapd(8). Copyrights Copyright 2004-2024 The OpenLDAP Foundation. Portions Copyright 2004-2017 Howard Chu, Symas Corporation. Portions Copyright 2017-2021 Ondej Kuznk, Symas Corporation. Portions Copyright 2004 Hewlett- Packard Company OpenLDAP 2.6.9 2024/11/26 SLAPO-REMOTEAUTH(5)
NAME | SYNOPSIS | DESCRIPTION | CONFIGURATION | EXAMPLE | SEE ALSO | Copyrights
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