Re: Replication account problem
--On Wednesday, January 8, 2020 4:16 PM +0100 Vincent Ducot
<vincent.ducot(a)rubycat.eu> wrote:
Hi all,
I'm testing multi-master replication between (at least 2) openldap nodes
(2.4.45, on Ubuntu 18.04) and facing a problem with replication account.
Any idea of what could cause this problem ?
# {1}mdb, config
dn: olcDatabase={1}mdb,cn=config
objectClass: olcDatabaseConfig
objectClass: olcMdbConfig
olcDatabase: {1}mdb
olcDbDirectory: /var/lib/ldap
olcSuffix: dc=nodomain
olcAccess: {0}to attrs=userPassword by self write by anonymous auth by *
none
olcAccess: {1}to attrs=shadowLastChange by self write by * read
olcAccess: {2}to * by * read
# {2}mdb, config
dn: olcDatabase={2}mdb,cn=config
objectClass: olcDatabaseConfig
objectClass: olcMdbConfig
olcDatabase: {2}mdb
olcDbDirectory: /var/lab/ldap
olcSuffix: dc=foo,dc=bar
olcAccess: {0}to attrs=userPassword by self =xw by anonymous auth by *
none
olcAccess: {1}to * by dn="cn=admin,dc=foo,dc=bar" write by self write by
user
s read by * none
olcAccess: {2}to * by dn="uid=rpuser,dc=foo,dc=bar" read
olcAccess: {3}to * by dn="uid=rpuser,dc=foo,dc=bar" write
I see multiple problems with your configuration.
a) You have two different databases storing their DBs in the same location
(/var/lib/ldap). I can't even imagine the havoc and destruction that would
cause.
b) Your ACLs are broken. The "rpuser" account has no ability to replicate
userPassword, since it can't read it. Also, ACLs #2 and #3 here will never
be evaluated, since it's already covered in ACL#1 (by users read). Since
it can't replicate userPassword, that value is getting lost from server#2,
explaining why you can't bind to it after replication starts.
Regards,
Quanah
--
Quanah Gibson-Mount
Product Architect
Symas Corporation
Packaged, certified, and supported LDAP solutions powered by OpenLDAP:
<http://www.symas.com>