Re: basedn in /etc/sysconfig/autofs

[wengang wang <wen.gang.wang@oracle.com>]

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Hi Ian,

reply from custom:
==>
Just to clarify:
 
1. We use different basedn for authentication and automount in our 
directory. The basedn for authentoication is used from /etc/ldap.conf. 
However we need to specify a separate basedn for automount maps because 
they are regional.
 
2. We do not have multiple master maps just one.
 
If it possible to use the MASTER_MAP_NAME without specifying the server 
then that should solve our problem. I will test this and let you know if 
it works.
<==

thanks,
wengang.

Ian Kent wrote:
> On Thu, 2007-09-06 at 10:01 +0800, wengang wang wrote:
>   
>> Hi Ian,
>>
>> here is the exchangings:
>>     
>
> It's not clear from this what the problem is.
>
> snip ...
>
>   
>> *** PLAKDAWA  08/14/07 02:06 pm *** 
>> Just to give you a little more information: Our automount schema is
>> based on 
>> the "automountmapname", "automountkey" and "automountinformation"
>> attributes. 
>> This works properly with the relevant settings in
>> the /etc/sysconfig/autofs 
>> file on RHEL5 if the basedn is set manually in
>> the /etc/openldap/ldap.conf 
>>     
>
> But doesn't work if you don't set basdn in ldap.conf?
> Are you saying that there are multiple master maps and maps of the same
> name under different basedns in this setup?
>
>   
>> file. However, since the openldap/ldap.conf file can be used by other 
>> applications, we don't want our automounter's basedn to depend on
>> this. 
>>
>> The LDAP attributes of the automount maps are as shown below: 
>>
>> [porus@rattlebag ~]$ ldapsearch -LLL -x -b 
>> "ou=sc,ou=ca,ou=na,dc=hyperion,dc=com"
>> "automountmapname=auto_nfshome" 
>> dn:
>> automountMapName=auto_nfshome,ou=sc,ou=ca,ou=na,dc=hyperion,dc=com 
>> objectClass: top 
>> objectClass: automountMap 
>> automountMapName: auto_nfshome 
>>   
>> [porus@rattlebag ~]$ ldapsearch -LLL -x -b 
>> "automountmapname=auto_nfshome,ou=sc,ou=ca,ou=na,dc=hyperion,dc=com" 
>> "automountkey=plakdawa" 
>> dn: 
>> automountkey=plakdawa,automountMapName=auto_nfshome,ou=sc,ou=ca,ou=na,dc=h 
>>  yperion,dc=com 
>> automountInformation: scfs3:/vol/vol2/homes/& 
>> automountKey: plakdawa 
>> objectClass: top 
>> objectClass: automount 
>>     
>
> snip ...
>
>   
>> *** PLAKDAWA  08/20/07 11:51 am *** 
>> The other issue with the DEFAULT_MASTER_MAP_NAME is that providing the full 
>> URL, will prevent the failover to the secondary LDAP server should the one 
>> mentioned in the URL fail. Or is it possible to add secondary entries?
>>     
>
> It's possible to specify the map (master or other) without the server
> name.
>
> eg.
> MASTER_MAP_NAME="ou=auto.master,dc=themaw,dc=net"
>
> This will then use the above basedn for finding the master map.
>
> However, this can't be used when autofs searches for the basedn for the
> maps referred to in the above master map which may not be a sensible
> thing to do but cannot be practically done another way. 
>
> The only workaround for this at the moment would be to specify the
> basedn in the master map entries as well as in the master map as above.
>
> eg.
> # /ldap, auto.master, themaw.net
> dn: cn=/ldap,ou=auto.master,dc=themaw,dc=net
> objectClass: automount
> cn: /ldap
> automountInformation: ou=auto.indirect,dc=themaw,dc=net
>
> Ian
>
>
>   

-- 
Wengang Wang
Member of Technical Staff
Oracle Asia R&D Center
Open Source Technologies Development

Tel:      +86 10 8278 6265
Mobile:   +86 13381078925


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