When I went through this exercise, I learned that PHP alone was not
going to work well, especially if you ever need to use password
synchronization with another password system (I.E. AD sync). The PHP
way of changing LDAP password essentially involves encrypting and
encoding the password within your PHP application and writing that
encrypted and encoded password directly to the user's password
attribute. This prevents password synchronization to external
systems. Ideally you want to use the ldapv3 ldappasswd mechanism for
changing your password within the directory. That way the directory
can read and propagate password changes correctly. Since PHP did not
contain a ldappasswd module, I ended up writing a PHP front-end
which passes the authentication request to separate Perl script to
actually change the password. There is a similar sourceforge project
called locksmith, but it also does the password changes the wrong
way (and encodes shorter passwords improperly, if I remember
correctly.)
On 01/21/2011 04:01 PM, harry.devine@xxxxxxx wrote:
I'm using PHP since I'm trying to
make
a web-based mechanism for our users to change their passwords.
Many
of them aren't exactly tech-savvy, and are used to the old
Windows way
of logging into our Windows machine, and being told that they
must change
their password. I'm trying to come up with a way to do that for
them.
Thanks,
Harry
Harry Devine
Common ARTS Software Development
AJT-144
(609)485-4218
Harry.Devine@xxxxxxx
On 01/21/2011 12:20 PM, Aaron Hagopian wrote:
Harry,
This is the pattern I use to parse the date in
java: "yyyyMMddHHmmss'Z'".
You can probably deduce what the values represent by looking at
the
pattern. Also the times are stored in UTC so you'll probably
want
to convert that to the local timezone if you're going to display
the date/time
to the user.
Aaron
2011/1/21 <harry.devine@xxxxxxx>
I can get the passwordexpirationtime value, but I'm unsure what
you mean
by "set the password expiration to occur immediately". I'm
coming from the Windows world, so I'm used to the "User must
change
password at next logon" checkbox. I don't see that anywhere
on the GUI, so I'm unclear how you set that.
Also, how do I manipulate the dates? I get something similar to
20110122161029Z
(for example) for passwordexpirationtime. How do I convert that
to
a proper date format?
What programming language are you using?
http://en.wikipedia.org/wiki/ISO_8601
- the format is used with no separators (e.g. 20110122 instead
of 2011-01-22)
and no "T" between the date and the time.
Also, I just changed my account's
password
while testing, and I see that passwordexpirationtime got reset
to 19700101000000Z.
What does the 1970xxx value represent?
That is a special value meaning the password needs
to
be changed.
Thanks,
Harry
Harry Devine
Common ARTS Software Development
AJT-144
(609)485-4218
Harry.Devine@xxxxxxx
Most LDAP servers use a different schema than the Microsoft
version and
work from the opposite direction. Try querying
"passwordexpirationtime".
You can do a search for the specific password schema with the
following
info: 2.16.840.1.113730.3.2.12 passwordObject
I think it is more common to:
1. administratively set the password on a user account
2. set the password expiration to occur immediately.
3. set the passwordGraceUserTime for a time period that allows
the user
to log in solely to change their password.
However, you must explicitly program your site to gracefully
handle this
situation (condition where passwordexpirationtime < now <
passwordGraceUserTime)
, since the user's LDAP authentication attempt against the
directory will
fail (with an error indicating the password has expired).
On 01/21/2011 09:45 AM, harry.devine@xxxxxxx
wrote:
I am in the process of creating a web-based mechanism to allow
our users
to change their password on our new 389-ds server. I would like
to
display the date that their password is due to expire, and while
Googling
around, I see a lot of references to pwdLastSet, but about 95%
of the articles
are referring to Active Directory. I don't see pwdLastSet
amongst
the attributes in my default 389-ds setup. Is it there, or do I
have
to add that attribute to every account?
Also, I currently have my pages set up where, when the user logs
in, it
detects our 'default' password and forces them to change it. Is
there
some attribute in their account that I can set that I can key
off of and
force them to change their password when they login to my site?
Thanks for any tips!
Harry
Harry Devine
Common ARTS Software Development
AJT-144
(609)485-4218
Harry.Devine@xxxxxxx
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