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Re: ldap + pam howto?



Roberto C. Sanchez wrote:
On Tue, Feb 06, 2007 at 09:22:40AM -0500, Grok Mogger wrote:
The LDAP client usually just sends all data (passwords included!) in the clear to the LDAP server. This is bad. SASL encrypts all the communication between the client and server.

Right, but your passwords should be hashed anyways.

Okay, now if I've at least got that much right....

1) How do I make the client and server use SASL? I was forever at a loss on this. Never could find a How-To for it or anything. (Every How-To I found on LDAP started off with something to the effect of "SASL is beyond the scope of this document" =P )

Because even though SASL is the "simple" authentication and security
layer, it is far from simple.

2) Once I've enabled SASL (enabled? Is that even the right term?) how can I see if it's working?

Personally, I just force everything (client and server) into using SSL.
Then, when I want to do stuff like use the LDAP backend to also do
authentication for parts of my website (that way users can use the same
password to login and to access the site), I know that no matter what,
everything is ecrypted.  Also, IIRC, SASL can only encrypt the
authentication part.  So everything after that, including queries, are
in the clear.

Regards,

-Roberto


So forget SASL and just send everything through an SSL tunnel? So you'd do something like this on the client... "ssh -L 7777:LDAPServer:$LDAPServerPORT -N user@LDAPServer", and then setup the LDAP client to send everything to the client's own 7777 port? And do something similar on the server. Is that right?

The thought had occurred to me, but SASL sounded like it was what I was *supposed* to do. If someone experienced out there is doing this though, then I'm fine with that. Sounds like it might be a better solution anyway.

Thanks for helping me out,
- GM


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