OpenLDAP配置MirrorMode同步

作者: sysit 分类: d 发表于 2017-12-07 120人围观

## 2. 前置要件

在以上两台服务器进行同样的OpenLDAP安装操作，可以完成:
* OpenLDAP安装配置
* OpenLDAP配置TLS

## 3. 通过cn=config增加syncprov模块
* 以下操作在ldap1和ldap2两台服务器上操作。
```
[root@ldap1 ~]# vi mod_syncprov.ldif    
dn: cn=module,cn=config
objectClass: olcModuleList
cn: module
olcModulePath: /usr/lib64/openldap
olcModuleLoad: syncprov.la

[root@ldap1 ~]#  ldapadd -Y EXTERNAL -H ldapi:/// -f mod_syncprov.ldif 
SASL/EXTERNAL authentication started
SASL username: gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth
SASL SSF: 0
adding new entry "cn=module,cn=config"

vi syncprov.ldif
# create new
dn: olcOverlay=syncprov,olcDatabase={2}hdb,cn=config
objectClass: olcOverlayConfig
objectClass: olcSyncProvConfig
olcOverlay: syncprov
olcSpSessionLog: 100

[root@ldap1 ~]# ldapadd -Y EXTERNAL -H ldapi:/// -f syncprov.ldif 
SASL/EXTERNAL authentication started
SASL username: gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth
SASL SSF: 0
adding new entry "olcOverlay=syncprov,olcDatabase={2}hdb,cn=config"
```

## 4. 配置服务器，需要修改olcServerID和provider

注意：配置中`credentials=manager.kkops.com`的`manager.kkops.com`是domain的密码，生成的密码串是`{SSHA}jezVaJuvRGc4KQ99LXfS7NDtk5paMy0z`

* 配置ldap1

```
vi ldap1.ldif
# create new
dn: cn=config
changetype: modify
replace: olcServerID
# specify uniq ID number on each server
olcServerID: 1

dn: olcDatabase={2}hdb,cn=config
changetype: modify
add: olcSyncRepl
olcSyncRepl: rid=001
  # specify another LDAP server's URI
  provider=ldap://ldap2.kkops.com:389/
  bindmethod=simple
  
  # own domain name
  binddn="cn=Manager,dc=kkops,dc=com"
  # directory manager's password
  credentials=manager.kkops.com
  searchbase="dc=kkops,dc=com"
  # includes subtree
  scope=sub
  schemachecking=on
  type=refreshAndPersist
  # [retry interval] [retry times] [interval of re-retry] [re-retry times]
  retry="30 5 300 3"
  # replication interval
  interval=00:00:05:00
-
add: olcMirrorMode
olcMirrorMode: TRUE

dn: olcOverlay=syncprov,olcDatabase={2}hdb,cn=config
changetype: add
objectClass: olcOverlayConfig
objectClass: olcSyncProvConfig
olcOverlay: syncprov

[root@ldap1 ~]# ldapmodify -Y EXTERNAL -H ldapi:/// -f ldap1.ldif 
SASL/EXTERNAL authentication started
SASL username: gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth
SASL SSF: 0
modifying entry "cn=config"

modifying entry "olcDatabase={2}hdb,cn=config"

adding new entry "olcOverlay=syncprov,olcDatabase={2}hdb,cn=config"

```

* 配置ldap2

```
vi ldap1.ldif
# create new
dn: cn=config
changetype: modify
replace: olcServerID
# specify uniq ID number on each server
olcServerID: 2

dn: olcDatabase={2}hdb,cn=config
changetype: modify
add: olcSyncRepl
olcSyncRepl: rid=001
  # specify another LDAP server's URI
  provider=ldap://ldap1.kkops.com:389/
  bindmethod=simple
  
  # own domain name
  binddn="cn=Manager,dc=kkops,dc=com"
  # directory manager's password
  credentials=manager.kkops.com
  searchbase="dc=kkops,dc=com"
  # includes subtree
  scope=sub
  schemachecking=on
  type=refreshAndPersist
  # [retry interval] [retry times] [interval of re-retry] [re-retry times]
  retry="30 5 300 3"
  # replication interval
  interval=00:00:05:00
-
add: olcMirrorMode
olcMirrorMode: TRUE

dn: olcOverlay=syncprov,olcDatabase={2}hdb,cn=config
changetype: add
objectClass: olcOverlayConfig
objectClass: olcSyncProvConfig
olcOverlay: syncprov

modifying entry "olcDatabase={2}hdb,cn=config"

adding new entry "olcOverlay=syncprov,olcDatabase={2}hdb,cn=config"

```

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