ssha passwords

Judith Flo Gaya jflo at imppc.org
Tue Apr 12 13:47:53 UTC 2011


Hello Suomi,

Thanks for your answer.
Excuse my ignorance I don't know if I understood you correctly. My point 
in the e-mail (sorry I didn't mention it ;( ) was to be able to modify 
the password using the passwd command instead of ldapadd/ldapmodify, if 
I use ldappasswd I have no problem with the encryption of the password.
When you say in the ldap config, you mean on server side or on client side?

Thanks again,
j


On 04/12/2011 02:55 PM, fedora wrote:
> At this site, we are using LDAP authentication exclusively. In the LDAP
> DIT whe have all kinds of hased passwords including crypt, ssh, ssha. In
> front of the password hash of the userPassword attribute we indicate the
> type of hash used:
>
> {crypt}/ey2ykUvpobl
> {SHA}QwdAWqb3+JCy34khUkrR81af/B
> {SSHA}yVvZPg6Pz9WOjEUoLIv2XRpJAQRhzu
>
> We can auttenticate a user via pam, and the mail-message store
> authenticates mail users using the same userPassword attribute.
>
> The primary hash is indicated in the LDAP config:
>    olcPasswordHash: {SSHA}
> Thus, when we use the LDAP tools (ldapadd, ldapmodify) to add/change
> passwords, the hash type is indicated automatically in the userPassword
> attribute as explained above.
>
> suomi
>
>
> On 2011-04-12 10:53, Judith Flo Gaya wrote:
>> Hello,
>>
>> I'm dealing with ldap and after switching to ssha passwords in the
>> server side, my clients are no longer able to change them passwords
>> without losing access to the server.
>> The issue is related to the different hashing methods (server is using
>> ssha and clients (f14) are using crypt).
>> Is there any way to force the passwd command to generate ssha hashed
>> passwords?
>> I've trying to do it through the authconfig command but seems that I can't.
>>
>> On the other side I would like to make the users able to login even if
>> the network fails (i.e the ldap server is unreachable), I've read that
>> this can be done with nscd but I don't know neither how nor the
>> implications that this change will produce.
>>
>> Thanks a lot for any help in advance, it will be very appreciated,
>> j

-- 
Judith Flo Gaya
Systems Administrator IMPPC
e-mail: jflo at imppc.org
Tel (+34) 93 554-3079
Fax (+34) 93 465-1472

Institut de Medicina Predictiva i Personalitzada del Càncer
Crta Can Ruti, Camí de les Escoles s/n
08916 Badalona, Barcelona,
Spain
http://www.imppc.org


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