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  • Monday, April 24, 2006

     

    openLDAP installation & Configuration

    1.Prepare the prequired softwares:
    2.After BerkeleyDB is installed. *Make sure * create the runtime links to BerkeleyDB's dynamic link library files by:
    1) In EL4, create a new file "BerkeleyDB.conf" in /etc/ld.so.conf.d, add this line to it:
    /usr/local/BerkeleyDB.4.4/lib, otherwise the later configure procedure will complain "BerkeleyDB version mismatched".
    2) run " ldconfig" to load the config

    3. To configure openLDAP, using:
    1)env CPPFLAGS="-I/usr/local/BerkeleyDB.4.4/include" LDFLAGS="-L/usr/local/BerkeleyDB.4.4/lib" ./configure --with-cyrus-sasl --enable-slapd --enable-crypt --with-tls --enable-spasswd --enable-wrappers --prefix=/usr/local/openLDAP
    *Note*
    a. IMPORTANT If you use --disable-cleartext paraments when configure the code, the "test002-populate" later will fail! So better dont use it unless u dont wanna do the tests.
    b. The env variables in this command will only be valid for this single process.)

    4. make depend
    5.make
    6.make test
    If no errors found during the tests procedure, you can start to configure the openldap now.
    The configration file of slapd is located in /usr/local/openLDAP/etc/openldap/slapd.conf
    Sightly modifications are required on the configuration file before you can start slapd service, my
    slapd.conf is like:
    ###################start of slapd.conf##########################
    #
    # See slapd.conf(5) for details on configuration options.
    # This file should NOT be world readable.
    #
    include /usr/local/openLDAP/etc/openldap/schema/core.schema
    include /usr/local/openLDAP/etc/openldap/schema/corba.schema
    include /usr/local/openLDAP/etc/openldap/schema/cosine.schema
    include /usr/local/openLDAP/etc/openldap/schema/inetorgperson.schema
    include /usr/local/openLDAP/etc/openldap/schema/misc.schema
    include /usr/local/openLDAP/etc/openldap/schema/openldap.schema
    include /usr/local/openLDAP/etc/openldap/schema/nis.schema

    # Define global ACLs to disable default read access.

    # Do not enable referrals until AFTER you have a working directory
    # service AND an understanding of referrals.
    #referral ldap://root.openldap.org

    pidfile /usr/local/openLDAP/var/run/slapd.pid
    argsfile /usr/local/openLDAP/var/run/slapd.args

    #Log level
    loglevel 1

    #######################################################################
    #Backend definitions
    #######################################################################
    backend bdb
    readonly off

    # Load dynamic backend modules:
    # modulepath /usr/local/openLDAP/libexec/openldap
    # moduleload back_bdb.la
    # moduleload back_ldap.la
    # moduleload back_ldbm.la
    # moduleload back_passwd.la
    # moduleload back_shell.la

    # Sample security restrictions
    # Require integrity protection (prevent hijacking)
    # Require 112-bit (3DES or better) encryption for updates
    # Require 63-bit encryption for simple bind
    # security ssf=1 update_ssf=112 simple_bind=64

    # Sample access control policy:
    # Root DSE: allow anyone to read it
    # Subschema (sub)entry DSE: allow anyone to read it
    # Other DSEs:
    # Allow self write access
    # Allow authenticated users read access
    # Allow anonymous users to authenticate
    # Directives needed to implement policy:
    # access to dn.base="" by * read
    # access to dn.base="cn=Subschema" by * read
    # access to *
    # by self write
    # by users read
    # by anonymous auth

    # if no access controls are present, the default policy
    # allows anyone and everyone to read anything but restricts
    # updates to rootdn. (e.g., "access to * by * read")
    #
    # rootdn can always read and write EVERYTHING!

    #######################################################################
    # BDB database definitions
    #######################################################################

    database bdb
    suffix "dc=ierc,dc=ox,dc=ac,dc=uk"
    rootdn "cn=Manager,dc=ierc,dc=ox,dc=ac,dc=uk"
    # Cleartext passwords, especially for the rootdn, should
    # be avoid. See slappasswd(8) and slapd.conf(5) for details.
    # Use of strong authentication encouraged.
    rootpw secret
    # The database directory MUST exist prior to running slapd AND
    # should only be accessible by the slapd and slap tools.
    # Mode 700 recommended.
    directory /usr/local/openLDAP/var/openldap-data
    # Indices to maintain
    index objectClass eq

    ###########################End of slapd.conf#########################




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