On Aug 7, 2008, at 5:33 PM, Stephen Feyrer wrote:
Timo Sirainen wrote:
On Aug 7, 2008, at 2:49 PM, Stephen Feyrer wrote:
Hi anyone.
Can dovecot be configured to authenticate user using only SSL
Certificates only and not ask for a password.So far I've got it taking the username from the common name of the
certificate but I like it to use the certificate in place of the
password.Is this possible and how? If you're that far, then you're already authenticating the user
against the certificate. Or assuming you have
ssl_require_client_cert=yes. Then just create a passdb that accepts
any password as valid for the user (nopassword=yes extra field). In theory there's also this EXTERNAL SASL mechanism that could be
used to log in without user/pass, but Dovecot doesn't currrently
support that and I'm not aware of any clients supporting it either.Hi Timo.
I have authenticating user against the certificate as you say and do
have ssl_require_client_cert=yes.I'm using PAM to authenticate against my user database at the
moment. I'm still baffled... :)
If you only want to allow users to log in with certificates, then just
change the PAM configuration file to be something like (not tested,
and my PAM knowledge isn't too good):
auth required pam_allow.so
Although it would be nice to be able to verify that the user still
exists, but you could do that with certificate revocation lists also..