Re: Access control

[harry.jede@arcor.de]

Thomas Schweikle wrote:
> Hi!
>
> I am trying to set up access control for an OpenLDAP server. I'd
> like to use a Group to set up users allowed to access and write to
> entries inside my tree:
>
> I've created the group:
> dn: cn=administrators,dc=example,dc=com
> cn: administrators
> objectclass: groupOfNames  (important for the group acl feature)
> member: cn=user1,ou=Users,dc=example,dc=com
> member: cn=user2,ou=Users,dc=example,dc=com
>
> in
> dn: olcDatabase=hdb,cn=config
> objectClass: olcDatabaseConfig
> objectClass: olcHdbConfig
> olcDatabase: hdb
> olcDbDirectory: /var/lib/ldap
> olcSuffix: dc=example,dc=com
> olcRootDN: cn=adm,dc=example,dc=com
> olcRootPW: ${admpw}
> olcAccess: to attrs=userPassword,shadowLastChange,krbPrincipalKey
>   by group.exact="cn=administrators,dc=example,dc=com" write
>   by dn="cn=adm,dc=example,dc=com" write
>   by anonymous auth
>   by self write
>   by * none
> olcAccess: to dn.base=""
>   by * read
> olcAccess: to *
>   by group.exact="cn=administrators,dc=example,dc=com" write
>   by dn="cn=adm,dc=example,dc=com" write
>   by * read
>
> Now trying to access "userPassword" from any user inside the tree
> "ou=Users,dc=example,dc=com".
> 1. The password field is empty -- it should hold a value
> 2. Entering a value, then pressing apply: "Error modifying
> 'cn=user3,ou=Users,dc=xompu,dc=de': Insufficient access
>
> I'd expected to have access to "userPassword" and I am allowed to
> write this value. Why does it not work if I log in with user1?
The openldap server is unable to authenticate user1 unless user1 has a 
valid password. I assume that adm is your admin DN. Try to set an 
initial password for user1 with the adm account.
And then verify that a search operation is successfull before trying to 
write.

In your acls you use "dc=example,dc=com" as suffix, but your real suffix 
is "dc=xompu,dc=de". Isn't it?

-- 
Regards 
Harry Jede