On 8/12/21 2:33 PM, Michael Starling wrote:
On 8/12/21 10:53 AM, Michael Starling wrote:
Hello.
I've taken over a large 389-ds environment running on Oracle Linux 8 and the first task I need to complete is to enable password lockouts.
I was able to enable password lockouts successfully however it only works if the client is pointed directly to a master. The account locks out and the attributes are propagated down to the hubs and consumers.
If the client is pointed to a read-only hub or consumer then the account does not lockout and the password attributes do not propagate back to the masters.
passwordIsGlobalPolicy: on is set on all masters, hubs and consumers
Password policy attributes I expect to replicate:
passwordRetryCount
accountUnlockTime
retryCountResetTime
I've tried following the chaining guide below which I think is what I need to do to get this work as expected, however I've hit a snag.
|
Introduction. The usual deployment for a large replication topology will have the client applications reading from hubs or dedicated consumers in order to spread out the load and off-load search request processing from
the masters.
directory.fedoraproject.org
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The document states the backend must be added to the hub or consumer, however when I try and add the following LDIF to the hub I get the "unwilling to perform" error.
This makes sense because the hub is read-only so I'm confused as how I can update the config on a read-only hub or consumer?
dn: cn=chainlab,cn=chaining database,cn=plugins,cn=config
objectclass: top
objectclass: extensibleObject
objectclass: nsBackendInstance
cn: chainlab
nsslapd-suffix: dc=domain,dc=com
nsmultiplexorbinddn: uid=repluser,cn=config
nsmultiplexorcredentials: mypassword
nsCheckLocalACI: on
adding new entry "cn=chainlab,cn=chaining database,cn=plugins,cn=config"
ldap_add: Server is unwilling to perform (53)
This is the doc you want to follow to get this working. But it is complicated...
In this case I'm not sure why the error 53 is being returned. There is something about that entry it does not like. So please check the access and errors log from the time of this failure (see /var/log/dirsrv/slapd-YOUR_INSTANCE/). There is usually more
info logged when an error 53 happens.
Also what version of 389-ds-base are you running?
Thanks,
Mark
Hub or Consumer
Step 1 (Hub and Consumer): the chaining backend must be created on the hub and consumer:
dn: cn=chainbe1,cn=chaining database,cn=plugins,cn=config
objectclass: top
objectclass: extensibleObject
objectclass: nsBackendInstance
cn: chainbe1
nsslapd-suffix: <suffix to replicate>
nsfarmserverurl: ldap://supplier1:port supplier2:port ... supplierN:port/ # also, ldaps can be used instead
# of ldap for secure connections -
# requires the secure port
nsmultiplexorbinddn: cn=Replication Manager,cn=config # or whatever the replica bind DN is on the supplier
nsmultiplexorcredentials: password
nsCheckLocalACI: on
Any help would be greatly appreciated.
Thanks
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Directory Server Development Team
Thanks for getting me the right track Mark. Looks like the "nsFarmServerURL" is not correct.
Versions:
389-ds-base-libs-1.4.3.17-1.module_el8+10764+2b5f8656.x86_64
389-ds-base-1.4.3.17-1.module_el8+10764+2b5f8656.x86_64
I thought I was maybe hitting the bug described below so I added a trailing "/" but the issue persists.
This is what I see in the logs on the hub when trying to add the LDIF.
The idea is for the hub to send these password attributes back to all masters.
These are the masters in the environment.
[12/Aug/2021:14:12:38.228746875 -0400] - ERR - chaining database - cb_instance_config_initialize -
Error with config attribute nsfarmserverurl : not a valid LDAP URL[12/Aug/2021:14:12:38.230107318 -0400] - ERR - chaining database - cb_instance_add_config_check_callback - Can't instantiate chaining backend instance chainlab.
[12/Aug/2021:14:13:11.436433137 -0400] - ERR - chaining database - cb_instance_config_initialize - Error with config attribute nsfarmserverurl : not a valid LDAP URL
[12/Aug/2021:14:13:11.437510161 -0400] - ERR - chaining database - cb_instance_add_config_check_callback - Can't instantiate chaining backend instance chainlab.
[12/Aug/2021:14:15:15.652343542 -0400] - ERR - chaining database - cb_instance_config_initialize - Error with config attribute nsfarmserverurl : not a valid LDAP URL
[12/Aug/2021:14:15:15.653524818 -0400] - ERR - chaining database - cb_instance_add_config_check_callback - Can't instantiate chaining backend instance chainlab.
[12/Aug/2021:14:20:12.212414022 -0400] - ERR - chaining database - cb_instance_config_initialize - Error with config attribute nsfarmserverurl : not a valid LDAP URL
[12/Aug/2021:14:20:12.213556900 -0400] - ERR - chaining database - cb_instance_add_config_check_callback - Can't instantiate chaining backend instance chainlab
Ok, I think its not liking the multiple values in the attribute, even though the document says you have multiple urls. I think you need to add the config like this:
nsfarmserverurl: ldap://dsa1.domain.com:389
nsfarmserverurl: ldap://dsa2.domain.com:389
nsfarmserverurl: ldap://dsa3.domain.com:389
Give it a try?
HTH,
Mark
--
Directory Server Development Team
Looks like it only added the first entry. Do I need to add an entry for each MAster?
dn: cn=chainlab,cn=chaining database,cn=plugins,cn=configobjectClass: top
objectClass: extensibleObject
objectClass: nsBackendInstance
cn: chainlab
nsslapd-suffix: dc=domain,dc=com
nsfarmserverurl: ldap://dsa1.domain.com:389
nsmultiplexorbinddn: uid=replicator,cn=config
nsmultiplexorcredentials: {AES-TUhNR0NTcUdTSWIzRFFFRkRUQm1NRVVHQ1NxR1NJYjNEUUVGRERBNEJDUm1aRFUwT1dOak5DMDVPVFl5TXpJMg0KWlMwNE16ZzFNVFl3TXkweU5tVTROekJtWkFBQ0FRSUNBU0F3Q2dZSUtvWklodmNOQWdjd0hRWUpZSVpJQVdVRA0KQkFFcUJCQTdhVjl4Z0NZcFkzR21YV2x0c293Mg==}u4FHsJF3AVHAqgtGCMXudA==
nsbindconnectionslimit: 3
nsoperationconnectionslimit: 20
nsabandonedsearchcheckinterval: 1
nsconcurrentbindlimit: 10
nsconcurrentoperationslimit: 2
nsproxiedauthorization: on
nsconnectionlife: 0
nsbindtimeout: 15
nsreferralonscopedsearch: off
nschecklocalaci: on
nsbindretrylimit: 3
nsslapd-sizelimit: 2000
nsslapd-timelimit: 3600
nshoplimit: 10
nsmaxresponsedelay: 60
nsmaxtestresponsedelay: 15
nsusestarttls: off
Hi Mark.
I tried adding the subsequent URL's and it doesn't allow multiple entries for this attribute.
It appears all the URLS need to be part of the one nsfarmserverurl attribute.
ldap_initialize( ldap://dsa4.domain.com )add nsFarmServerURL:
ldap://dsa2.domain.com:389
modifying entry "cn=chainlab,cn=chaining database,cn=plugins,cn=config"
ldap_modify: Server is unwilling to perform (53)
additional info: Adding attributes is not allowed
I believe I have this working now.
Thank you Mark for getting me pointed in the right direction.
