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Re: Access being denied.



I hope this doesn't confuse you too much... First off... Your admin account will be dn="cn=admin,dc=oreillyauto,dc=com", if you are talking about the default admin account.  You also want manage instead of write.  I would also recommend securing your admin account with access lists, only allowing access from specific manager IP addresses.  In order to restrict the cn=admin account as I do below, you have to set the userPassword attribute for the admin account, and blank the olcRootPW.

set admin password:
dn: cn=admin,dc=bradley,dc=edu
changeType: modify
add: userPassword
userPassword: {SSHA}<passwordhash>

blank old olcRootPW

dn: olcDatabase={1}hdb,cn=config
changetype: modify
delete: olcRootPW

This allows use of the normal authentication process and will look at your access lists.  Otherwise, it will always bypass access lists and use the olcRootPW to authenticate.


Here's how I handle access restrictions, which I would suggest you evaluate.  This is a positive security model as well (meaning the default action is deny), which I highly recommend (ie no one can access any field, unless it's specifically defined).  The downside to the positive security model is that it's less flexible, you have to whitelist any new attributes you wish users to access, but it provides you with the best security.  Another note in this, is that my user accounts are all shadowAccounts, and setting shadowInactive to 1 disables the account. (handled by the 3rd section with password fields).  


Here is my access list in a template form:

dn: olcDatabase={1}hdb,cn=config
changetype: modify
replace: olcAccess
# limit access to directory manager to local host only and specific manager ip's
olcAccess: to dn.base="cn=admin,dc=,dc="
  by peername.ip=127.0.0.1 auth
  by sockurl=ldapi:/// auth
  by peername.ip=<manager IP> auth
  by users none
  by anonymous none
#Allow admin users full access to all attrs
#Allow OpenLDAP2 Sync User read access to all
#Everyone else, continue
olcAccess: to *
  by peername.ip=172.16.0.0%255.255.0.0 dn="uid=adminuser,dc=,dc=" manage
  by peername.ip=<secondary ldap server ip> dn="uid=syncuser,ou=Service_Logins,dc=,dc=" read
  by peername.ip=<third ldap server ip> dn="uid=syncuser,ou=Service_Logins,dc=,dc=" read
  by * break
#Handle password fields, for all possible entities.  No further processing for these attributes
olcAccess: to attrs=userPassword,shadowLastChange filter=(&(objectClass=shadowAccount)(!(shadowInactive=1)))
  by self =w
  by sockurl=ldapi:/// auth
  by peername.ip=172.16.0.0%255.255.0.0 auth
  by peername.ip=127.0.0.1 group.exact="cn=localadmingroup,dc=,dc=" manage
  by group.exact="cn=admingroup,dc=,dc=" write
  by * none
#Specific processing for an Account
#Everyone else, continue
olcAccess: to attrs=attr1,attr2
  by dn="uid=account1,ou=Service_Logins,dc=,dc=" read
  by * break
#Specific processing for a Group
#Everyone else, continue
olcAccess: to attrs=attr3,attr4
  by group.exact="cn=group1,out=Group,dc=,dc=" manage
  by * break
#Handle SELF writable fields
#Everyone else, continue
olcAccess: to attrs=loginShell,mailRoutingAddress,additionalattrs
  by self write
  by * break
#Handle more restrictive fields    
#Stop processing on match
olcAccess: to attrs=audio,attr5,attr6,attr7
  filter=(&(matchTrue=1)(objectClass=Person))
  by * none             
#Handle Anonymous Allowed fields
#Stop Processing on Match
olcAccess: to attrs=attr8,attr9,attr10
  by * read
#Handle User Allowed Fields
#Stop Processing on Match
olcAccess: to dn.subtree="dc=,dc=" attrs=audio    
  by users read
#Hide additional superuser accounts in directory      
olcAccess: to attrs=entry filter=(|(ou=Service_Logins)(uid=logins))
  by * none
#Allow access to specific objectclasses
olcAccess: to filter=(|(objectClass=nisDomainObject)(objectClass=nisNetGroup)(objectClass=posixGroup)(objectClass=groupOfUniqueNames)(objectClass=organizationalUnit))
  by * read
#Allow access to directory entries.  Required to query directory when using default deny policy
olcAccess: to dn.subtree="dc=,dc="                  
  attrs=entry,objectClass
  by * read 
#Default Deny
olcAccess: to *         
  by * none




On Mon, Sep 23, 2013 at 12:08 PM, <espeake@oreillyauto.com> wrote:

I know this has to be super simple in what I am missing.  My ldapadmin
account cannot write to the database due to insufficient privileges..  This
is the ACL part of the ldif file. Version 2.4.31 and this is from
olcDatabase={1}hdb.ldif

olcAccess: {0}to attrs=userPassword by dn="uid=admin,dc=oreillyauto,dc=com"
wr
 ite by anonymous auth by self write by * none
olcAccess: {1}to dn.subtree="" by * read
olcAccess: {2}to * by dn="uid=admin,dc=oreillyauto,dc=com" write by
dn="uid=ld
 apadmin,ou=System,dc=oreillyauto,dc=com" write by * read

olcAccess: {2} for ldap admin actually be
'dn.base="uid=ldapadmin,ou-System, dc=<domain>,dc=com" write'?

Thanks
Eric Speake
Web Systems Administrator
O'Reilly Auto Parts

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--
Jason K. Brandt
Systems Administrator
Bradley University
(309) 677-2958