Hello,

Interesting,

Does it depends on the access and authentication method ?

I use the contextCSN information from a distant monitoring host, so I need the 
network connexion.

f.g.



> Le 3 janv. 2025 à 09:49, Windl, Ulrich <[email protected]> a écrit :
> 
> Oddly,
> 
> " ldapsearch -Y EXTERNAL -H ldapi:/// -b 'dc=...' -s base 
> 'objectClass=dcObject' contextCSN " works here.
> E.g.:
> contextCSN: 20130719093756.074776Z#000000#000#000000
> contextCSN: 20250102144001.554369Z#000000#001#000000
> contextCSN: 20241205131314.243603Z#000000#002#000000
> contextCSN: 20241126141340.077960Z#000000#003#000000
> 
> Kind regards,
> Ulrich
> 
>> -----Original Message-----
>> From: Frédéric Goudal <[email protected]>
>> Sent: Thursday, December 19, 2024 9:20 AM
>> To: Quanah Gibson-Mount <[email protected]>
>> Cc: Frédéric Goudal <[email protected]>; openldap-
>> [email protected]
>> Subject: [EXT] Re: Unable to get the contextCSN
>> 
>> Hello,
>> 
>> Finnaly I have found a solution : on the filter I have added an expression 
>> that
>> allow the root object (dc=ipb,dc=fr) to be synchronized.
>> With that, the contextCSN is retrived and  apacheDirectoryStudio behave as
>> usual.
>> 
>> BUT for me there are two things left :
>> 
>> - I have found on the list archive someone who had exactly the same
>> problem years ago… so I think the problem is not just mine. But the
>> documentation examples don’t explain how to get the contextCSN. Maybe it
>> should be explained as getting the contextCSN is the only way to check there
>> is no sync problem (and getting the namingContext the way for
>> apacheDirectoryStudio to behave correctly)
>> 
>> - in fact I have done a slapcat and…
>> 
>> dn: dc=ipb,dc=fr
>> structuralObjectClass: glue
>> objectClass: top
>> objectClass: glue
>> entryUUID: 79919fa2-5163-103f-9e87-459e60a64e39
>> creatorsName: cn=admin,dc=ipb,dc=fr
>> createTimestamp: 20090408121621Z
>> entryCSN: 20090408121621.366621Z#000000#000#000000
>> modifiersName: cn=admin,dc=ipb,dc=fr
>> modifyTimestamp: 20090408121621Z
>> contextCSN: 20130927152219.157851Z#000000#001#000000
>> contextCSN: 20131127140429.597497Z#000000#002#000000
>> contextCSN: 20141208130549.278599Z#000000#004#000000
>> contextCSN: 20241218113701.508746Z#000000#00a#000000
>> contextCSN: 20211125151922.406046Z#000000#018#000000
>> contextCSN: 20241218113143.754713Z#000000#01f#000000
>> 
>> The contextCSN are in the database… but cannot be retrieved.
>> 
>> I will add the + to the attrs. Thanks for the idea.
>> 
>> Fred
>> 
>> 
>> 
>>> Le 18 déc. 2024 à 22:50, Quanah Gibson-Mount <[email protected]> a
>> écrit :
>>> 
>>> 
>>> 
>>> --On Wednesday, December 18, 2024 11:47 AM +0100 Frédéric Goudal
>> <[email protected]> wrote:
>>> 
>>>> Hello,
>>>> 
>>>> I just have build a new ldap server
>>>> @(#) $OpenLDAP: slapd 2.6.8 (Jul 23 2024 09:45:55) $
>>>> 
>>>> It is an attenpt to do a partial replication from another ldap server.
>>>> The objects seem to be synchronized in the logs I have
>>>> lines like
>>>> slap_queue_csn: queueing 0x77bfe8109e30
>>>> 20241218104201.919382Z#000000#00a#000000
>>>> 
>>>> where the csn is correct.
>>>> 
>>>> What is strange is that if I try to get the contextCSN, from the
>>>> directoryI have no value returned :
>>>> 
>>>> /usr/local/bin/ldapsearch -H ldap://ldapext2024.dmze.ipb.fr -x -s base -b
>>>> dc=ipb,dc=fr contextCSN
>>>> # extended LDIF
>>>> #
>>>> # LDAPv3
>>>> # base <dc=ipb,dc=fr> with scope baseObject
>>>> # filter: (objectclass=*)
>>>> # requesting: contextCSN
>>>> #
>>>> 
>>>> # search result
>>>> search: 2
>>>> result: 0 Success
>>>> 
>>>> # numResponses: 1
>>>> 
>>>> The olcSyncrepl  value is :
>>>> 
>>>> {0}rid=430 provider=ldap://<provider>
>>>> binddn="uid=ldapsync,ou=people,dc=ipb,dc=fr" bindmethod=simple
>>>> credentials=secret filter="(|
>>>> (entryDN:dnSubtreeMatch:=ou=groups,dc=ipb,dc=fr)
>>>> (entryDN:dnSubtreeMatch:=ou=people,dc=ipb,dc=fr))"
>>>> searchbase="dc=ipb,dc=fr"
>>>> logfilter="(&(objectClass=auditWriteObject)(reqResult=0))"
>>>> 
>> attrs="uid,sn,givenName,userPassword,mail,member,ipbCompteValide,ipbS
>> ervi
>>>> ceAllow,ipbServiceDeny,ipbPupi" logbase=cn=accesslog
>>>> type=refreshAndPersist  interval=00:00:00:10 retry="5 5 300 +" timeout=1
>>>> exattrs=hasSubordinates
>>> 
>>> I would definitely add "+" to the list of attrs (all operational 
>>> attributes).
>>> 
>>> If you slapcat the db on the consumer, do you see a contextCSN value in
>> the root?
>>> 
>>> --Quanah
>> 
>> 
>> —
>> Frédéric Goudal
>> Ingénieur Système, DSI Bordeaux-INP
>> +33 556 84 23 11
>> 
>> 
>> 
> 

— 
Frédéric Goudal
Ingénieur Système, DSI Bordeaux-INP
+33 556 84 23 11




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