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  • OpenLDAP Replication

    OpenLDAP Replication

    官方网站:


    环境:
    CentOS 7
    openldap-2.4.4



    镜像同步
    互为镜像，同增同减

    node1.example.com(192.168.8.101)
    在配置文件末尾添加如下突出行

    cat >/opt/openldap/etc/openldap/slapd.conf

    include /opt/openldap/etc/openldap/schema/core.schema

    include /opt/openldap/etc/openldap/schema/collective.schema

    include /opt/openldap/etc/openldap/schema/corba.schema

    include /opt/openldap/etc/openldap/schema/cosine.schema

    include /opt/openldap/etc/openldap/schema/duaconf.schema

    include /opt/openldap/etc/openldap/schema/dyngroup.schema

    include /opt/openldap/etc/openldap/schema/inetorgperson.schema

    include /opt/openldap/etc/openldap/schema/java.schema

    include /opt/openldap/etc/openldap/schema/misc.schema

    include /opt/openldap/etc/openldap/schema/nis.schema

    include /opt/openldap/etc/openldap/schema/openldap.schema

    include /opt/openldap/etc/openldap/schema/ppolicy.schema

    include /opt/openldap/etc/openldap/schema/pmi.schema


    pidfile /opt/openldap/var/run/slapd.pid

    argsfile /opt/openldap/var/run/slapd.args


    loglevel 256

    logfile  /opt/openldap/var/logs/slapd.log


    database mdb

    maxsize 1073741824

    suffix "dc=example,dc=com"

    rootdn "cn=Manager,dc=example,dc=com"

    rootpw secret

    directory /opt/openldap/var/openldap-data

    index objectClass eq


    index entryCSN,entryUUID eq

     

    serverID 1

    overlay syncprov

     

    syncrepl rid=001

            provider=ldap://192.168.8.102:389

            type=refreshAndPersist

            searchbase="dc=example,dc=com"

            schemachecking=on

            bindmethod=simple

            binddn="cn=Manager,dc=example,dc=com"

            credentials=secret

            retry="60 +"

    mirrormode on

    HERE

    service slapd restart


    node2.example.com(192.168.8.102)

    cat >/opt/openldap/etc/openldap/slapd.conf

    include /opt/openldap/etc/openldap/schema/core.schema

    include /opt/openldap/etc/openldap/schema/collective.schema

    include /opt/openldap/etc/openldap/schema/corba.schema

    include /opt/openldap/etc/openldap/schema/cosine.schema

    include /opt/openldap/etc/openldap/schema/duaconf.schema

    include /opt/openldap/etc/openldap/schema/dyngroup.schema

    include /opt/openldap/etc/openldap/schema/inetorgperson.schema

    include /opt/openldap/etc/openldap/schema/java.schema

    include /opt/openldap/etc/openldap/schema/misc.schema

    include /opt/openldap/etc/openldap/schema/nis.schema

    include /opt/openldap/etc/openldap/schema/openldap.schema

    include /opt/openldap/etc/openldap/schema/ppolicy.schema

    include /opt/openldap/etc/openldap/schema/pmi.schema


    pidfile /opt/openldap/var/run/slapd.pid

    argsfile /opt/openldap/var/run/slapd.args


    loglevel 256

    logfile  /opt/openldap/var/logs/slapd.log


    database mdb

    maxsize 1073741824

    suffix "dc=example,dc=com"

    rootdn "cn=Manager,dc=example,dc=com"

    rootpw secret

    directory /opt/openldap/var/openldap-data

    index objectClass eq


    index entryCSN,entryUUID eq

     

    serverID 2

    overlay syncprov

     

    syncrepl rid=001

            provider=ldap://192.168.8.101:389

            type=refreshAndPersist

            searchbase="dc=example,dc=com"

            schemachecking=on

            bindmethod=simple

            binddn="cn=Manager,dc=example,dc=com"

            credentials=secret

            retry="60 +"

    mirrormode on

    HERE

    service slapd restart


    细心的朋友可能发现，这两节点的配置只有两处不同，serverID不同，provider是对方的监听地址

    在node1执行添加，node2上立马就会同步过去

    cat >mirror.ldif <<HERE

    dn: cn=foo20,ou=Group,dc=example,dc=com

    objectClass: posixGroup

    objectClass: top 

    cn: foo20

    userPassword:: e2NyeXB0fXg=

     

    gidNumber: 1020

    HERE

    ldapadd -x -D  'cn=Manager,dc=example,dc=com' -w secret -f mirror.ldif



    [root@node1 ~]# ldapadd -x -D  'cn=Manager,dc=example,dc=com' -w secret -f mirror.ldif

    adding new entry "cn=foo20,ou=Group,dc=example,dc=com"

    [root@node2 ~]# ldapsearch -x -D 'cn=Manager,dc=example,dc=com' -w secret -b 'cn=foo20,ou=Group,dc=example,dc=com' -LLL

    dn: cn=foo20,ou=Group,dc=example,dc=com

    objectClass: posixGroup

    objectClass: top

    cn: foo20

    userPassword:: e2NyeXB0fXg=

    gidNumber: 1020





    其它同步类型
    Syncrepl
    provider.example.com
    consumer.example.com
    Provider

    cat >/opt/openldap/etc/openldap/slapd.conf <<HERE

    include /opt/openldap/etc/openldap/schema/core.schema

    include /opt/openldap/etc/openldap/schema/collective.schema

    include /opt/openldap/etc/openldap/schema/corba.schema

    include /opt/openldap/etc/openldap/schema/cosine.schema

    include /opt/openldap/etc/openldap/schema/duaconf.schema

    include /opt/openldap/etc/openldap/schema/dyngroup.schema

    include /opt/openldap/etc/openldap/schema/inetorgperson.schema

    include /opt/openldap/etc/openldap/schema/java.schema

    include /opt/openldap/etc/openldap/schema/misc.schema

    include /opt/openldap/etc/openldap/schema/nis.schema

    include /opt/openldap/etc/openldap/schema/openldap.schema

    include /opt/openldap/etc/openldap/schema/ppolicy.schema

    include /opt/openldap/etc/openldap/schema/pmi.schema


    pidfile /opt/openldap/var/run/slapd.pid

    argsfile /opt/openldap/var/run/slapd.args


    loglevel 256

    logfile  /opt/openldap/var/logs/slapd.log


    database mdb

    maxsize 1073741824

    suffix "dc=example,dc=com"

    rootdn "cn=Manager,dc=example,dc=com"

    rootpw secret

    directory /opt/openldap/var/openldap-data

    index objectclass,entryCSN,entryUUID eq


    overlay syncprov

    syncprov-checkpoint 100 10

     

    syncprov-sessionlog 100

    HERE

    systemctl restart slapd



    Consumer

    cat >/opt/openldap/etc/openldap/slapd.conf <<HERE

    include /opt/openldap/etc/openldap/schema/core.schema

    include /opt/openldap/etc/openldap/schema/collective.schema

    include /opt/openldap/etc/openldap/schema/corba.schema

    include /opt/openldap/etc/openldap/schema/cosine.schema

    include /opt/openldap/etc/openldap/schema/duaconf.schema

    include /opt/openldap/etc/openldap/schema/dyngroup.schema

    include /opt/openldap/etc/openldap/schema/inetorgperson.schema

    include /opt/openldap/etc/openldap/schema/java.schema

    include /opt/openldap/etc/openldap/schema/misc.schema

    include /opt/openldap/etc/openldap/schema/nis.schema

    include /opt/openldap/etc/openldap/schema/openldap.schema

    include /opt/openldap/etc/openldap/schema/ppolicy.schema

    include /opt/openldap/etc/openldap/schema/pmi.schema


    pidfile /opt/openldap/var/run/slapd.pid

    argsfile /opt/openldap/var/run/slapd.args


    loglevel 256

    logfile  /opt/openldap/var/logs/slapd.log


    database mdb

    maxsize 1073741824

    suffix "dc=example,dc=com"

    rootdn "cn=Manager,dc=example,dc=com"

    rootpw secret

    directory /opt/openldap/var/openldap-data

    index objectclass,entryCSN,entryUUID eq


    syncrepl rid=123

        provider=ldap://provider.example.com:389

        type=refreshOnly

        interval=00:00:00:20

        searchbase="dc=example,dc=com"

        filter="(objectClass=organizationalPerson)"

        scope=sub

        attrs="cn,sn,ou,telephoneNumber,title,l"

        schemachecking=off

        bindmethod=simple

        binddn="cn=Manager,dc=example,dc=com"

     

        credentials=secret

    HERE

    systemctl restart slapd

    说明:实验需要，这里将同步间隔调整为20秒同步一次



    Delta-syncrepl

    provider.example.com
    consumer.example.com
    Provider

    cat >/opt/openldap/etc/openldap/slapd.conf <<HERE

    include /opt/openldap/etc/openldap/schema/core.schema

    include /opt/openldap/etc/openldap/schema/collective.schema

    include /opt/openldap/etc/openldap/schema/corba.schema

    include /opt/openldap/etc/openldap/schema/cosine.schema

    include /opt/openldap/etc/openldap/schema/duaconf.schema

    include /opt/openldap/etc/openldap/schema/dyngroup.schema

    include /opt/openldap/etc/openldap/schema/inetorgperson.schema

    include /opt/openldap/etc/openldap/schema/java.schema

    include /opt/openldap/etc/openldap/schema/misc.schema

    include /opt/openldap/etc/openldap/schema/nis.schema

    include /opt/openldap/etc/openldap/schema/openldap.schema

    include /opt/openldap/etc/openldap/schema/ppolicy.schema

    include /opt/openldap/etc/openldap/schema/pmi.schema


    pidfile /opt/openldap/var/run/slapd.pid

    argsfile /opt/openldap/var/run/slapd.args


    loglevel 256

    logfile  /opt/openldap/var/logs/slapd.log


    access to *

        by dn.base="cn=Manager,dc=example,dc=com" read

        by * break


    # Set the module path location

    modulepath /opt/openldap/lib


    # Load the mdb backend

    moduleload back_mdb.la


    # Load the accesslog overlay

    moduleload accesslog.la


    #Load the syncprov overlay

    moduleload syncprov.la


    # Accesslog database definitions

    database mdb

    suffix cn=accesslog

    directory /opt/openldap/var/openldap-data

    rootdn cn=accesslog

    index default eq

    index entryCSN,objectClass,reqEnd,reqResult,reqStart


    overlay syncprov

    syncprov-nopresent TRUE

    syncprov-reloadhint TRUE


    # Let the replica DN have limitless searches

    limits dn.exact="cn=Manager,dc=example,dc=com" time.soft=unlimited time.hard=unlimited size.soft=unlimited size.hard=unlimited


    # Primary database definitions

    database mdb

    maxsize 1073741824

    suffix "dc=example,dc=com"

    rootdn "cn=Manager,dc=example,dc=com"

    rootpw secret

    directory /opt/openldap/var/openldap-data

    index objectClass eq


    ## Whatever other configuration options are desired


    # syncprov specific indexing

    index entryCSN eq

    index entryUUID eq


    # syncrepl Provider for primary db

    overlay syncprov

    syncprov-checkpoint 1000 60


    # accesslog overlay definitions for primary db

    overlay accesslog

    logdb cn=accesslog

    logops writes

    logsuccess TRUE

    # scan the accesslog DB every day, and purge entries older than 7 days

    logpurge 07+00:00 01+00:00


    # Let the replica DN have limitless searches

     

    limits dn.exact="cn=Manager,dc=example,dc=com" time.soft=unlimited time.hard=unlimited size.soft=unlimited size.hard=unlimited

    HERE

    systemctl restart rsyslog

    systemctl restart slapd



    Consumer

    cat >/opt/openldap/etc/openldap/slapd.conf <<HERE

    include /opt/openldap/etc/openldap/schema/core.schema

    include /opt/openldap/etc/openldap/schema/collective.schema

    include /opt/openldap/etc/openldap/schema/corba.schema

    include /opt/openldap/etc/openldap/schema/cosine.schema

    include /opt/openldap/etc/openldap/schema/duaconf.schema

    include /opt/openldap/etc/openldap/schema/dyngroup.schema

    include /opt/openldap/etc/openldap/schema/inetorgperson.schema

    include /opt/openldap/etc/openldap/schema/java.schema

    include /opt/openldap/etc/openldap/schema/misc.schema

    include /opt/openldap/etc/openldap/schema/nis.schema

    include /opt/openldap/etc/openldap/schema/openldap.schema

    include /opt/openldap/etc/openldap/schema/ppolicy.schema

    include /opt/openldap/etc/openldap/schema/pmi.schema


    pidfile /opt/openldap/var/run/slapd.pid

    argsfile /opt/openldap/var/run/slapd.args


    loglevel 256

    logfile  /opt/openldap/var/logs/slapd.log


    # Replica database configuration

    database mdb

    suffix "dc=example,dc=com"

     

    rootdn "cn=Manager,dc=example,dc=com"


    ## Whatever other configuration bits for the replica, like indexing

    ## that you want


    # syncrepl specific indices

    index entryUUID eq


    # syncrepl directives

    syncrepl  rid=0

        provider=ldap://provider.example.com:389

        bindmethod=simple

        binddn="cn=Manager,dc=example,dc=com"

        credentials=secret

        searchbase="dc=example,dc=com"

        logbase="cn=accesslog"

        logfilter="(&(objectClass=auditWriteObject)(reqResult=0))"

        schemachecking=on

        type=refreshAndPersist

        retry="60 +"

        syncdata=accesslog

        

    # Refer updates to the master

     

    updateref ldap://provider.example.com

    HERE

    systemctl restart rsyslog

    systemctl restart slapd


    [root@provider openldap]# tail -f /opt/openldap/var/logs/slapd.log

    May 24 21:52:38 provider slapd[2808]: [OK] data saved in /tmp/openldap/openldap-data-20160524215236.ldif

    May 24 21:52:38 provider slapd[2811]: [INFO] Launching OpenLDAP database recovery...

    May 24 21:52:38 provider slapd[2829]: [OK] OpenLDAP /opt/openldap/var/openldap-data database recovery successful

    May 24 21:52:38 provider slapd[2830]: [INFO] Launching OpenLDAP...

    May 24 21:52:38 provider slapd[2831]: [OK] File descriptor limit set to 2048

    May 24 21:52:38 provider slapd[2832]: @(#) $OpenLDAP: slapd 2.4.44 (May 23 2016 23:02:48) $

    root@provider.example.com:/usr/local/src/openldap-2.4.44/servers/slapd

    May 24 21:52:38 provider slapd[2833]: mdb_monitor_db_open: monitoring disabled; configure monitor database to enable

    May 24 21:52:38 provider slapd[2833]: slapd starting

    May 24 21:52:39 provider slapd[2839]: [OK] OpenLDAP started

    May 24 21:53:37 provider slapd[2833]: conn=1000 fd=12 ACCEPT from IP=192.168.8.101:35049 (IP=0.0.0.0:389)

    May 24 21:53:37 provider slapd[2833]: conn=1000 op=0 BIND dn="cn=manager,dc=example,dc=com" method=128

    May 24 21:53:37 provider slapd[2833]: conn=1000 op=0 BIND dn="cn=manager,dc=example,dc=com" mech=SIMPLE ssf=0

    May 24 21:53:37 provider slapd[2833]: conn=1000 op=0 RESULT tag=97 err=0 text=

    May 24 21:53:37 provider slapd[2833]: conn=1000 op=1 SRCH base="cn=accesslog" scope=2 deref=0 filter="(&(objectClass=auditWriteObject)(reqResult=0))"

    May 24 21:53:37 provider slapd[2833]: conn=1000 op=1 SRCH attr=reqDN reqType reqMod reqNewRDN reqDeleteOldRDN reqNewSuperior entryCSN
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  • 原文地址：https://www.cnblogs.com/lixuebin/p/10814040.html
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