Aly,
At 20:38 on 1-December-2001, Aly S.P Dharshi wrote:
> Hi All,
>
> I hope that you are well, I am trying to use the Maildir format with
> ldap, we have a homeDirectory attribute in ldap at the moment to say
> /home/aly.dharshi
>
> I want to contact the ldap server with a query to be returned to replace the
> line directory=/home/$local_part/Maildir with directory=<result from
> ldap>/Maildir in the transport below:
>
> local_delivery:
> driver = appendfile
> # file = /var/mail/${local_part}
> maildir_format = true
> directory = /home/$local_part/Maildir
> # directory =
> directory_mode = 0700
> delivery_date_add
> envelope_to_add
> return_path_add
> # group = mail
> # mode = 0660
>
> How would one go about doing that, the manual gives an example but I am not
> very clear about it, any help would be appreciated. Thanks in advance.
I am not sure how you are relating your local address into your LDAP
DIT. There are two options:
1. You are searching on an attribute (e.g.
mail=${local_part}@${domain}
or
username=${local_part}
)
Let's assume
o Your ldap server's is running on port 389 on a machine called
myldapserver.mycom
o The search root for your LDAP DIT is
ou=people,o=my com,c=us
o you are matching the username
o the user's directory is in an attribute called homeDirectory
so for this you should try
home_dir = ${lookup ldap{ldap://myldapserver.mycom:389/ou=people,o=my%20com,c=us?homeDirectory?one?username=${local_part}}{$value}fail}
2. You are searching on an distinguished name (e.g.
dn=uid=dgraystephens,ou=people,o=my com,c=us
) to obtain the record
Let's assume
o Your ldap server's is running on port 389 on a machine called
myldapserver.mycom
o The search root for your LDAP DIT is
ou=people,o=my com,c=us
o The local part of the address is the uid=xxx in the DN
o the user's directory is in an attribute called homeDirectory
so for this you should try
home_dir = ${lookup ldap{ldap://myldapserver.mycom:389/uid=${local_part},ou=people,o=my%20com,c=us?homeDirectory?base?}{$value}fail}
You can then substitute user-dir into the directory
directory=$home_dir/Maildir
There are other things that you should consider, e.g.
o using the ldap_default_servers variable to define your ldap
servers, e.g.
ldap_default_servers = "\
myserver1.mycom::389 : \
myserver2.mycom::389 : \
myserver3.mycom::389"
so that should your first LDAP server be unavailable Exim will
automatically try the second server, etc..
o what happens if there are two matches (e.g. you are searching on
something that is not unique. In this case you may want to use
ldapm rather than ldap for the lookups, and trap that situation.
I hope this helps,
Douglas.
--
================================
Douglas GRAY STEPHENS
Global Infrastructure (Directories)
Schlumberger Cambridge Research
High Cross,
Madingley Road,
Cambridge.
CB3 0EL
ENGLAND
Phone +44 1223 325295
Mobile +44 773 0051628
Fax +44 1223 311830
Email DGrayStephens@???
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