Re: Using certs from MS CA server

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J Davis wrote:
Hello,

I have FDS 1.0.4 running using an SSL certificate generated by an Microsoft windows 2003 CA server. I choose this method as opposed to the setupssl.sh script from the wiki because I have read in the list archives that it is the best way to avoid trust issues when setting up PassSync over SSL between FDS and AD. I'm having a hard time finding references for configuring this properly and I know very little about SSL certificates so I'm making some guesses and likely missing a crucial step or two. The problem is that when trying to bind to the FDS using SSL I get certificate verification errors.

> # ldapsearch -x -H ldaps://localhost/
> ldap_bind: Can't contact LDAP server (-1)
> additional info: error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed
/usr/bin/ldapsearch is OpenLDAP ldapsearch. Did you follow these steps to tell it where to find the CA cert? http://directory.fedoraproject.org/wiki/Howto:SSL#Configure_LDAP_clients

Here's how I set up the certificates...
1. Generated a CSR using the FDS console wizard and submitted it to the MS CA. 2. Imported the CA certificate (called "it") and the signed "server-cert" resulting from step 1 from the MS CA using the FDS admin console. 3. Enabled SSL (port 636) in the directory server using server-cert from step 1.
Where you restarted the directory server, did it say it was listening for LDAPS requests on port 636 in the error log?

I used certutil to display the list of certificates in the FDS cert db.
> [alias]# ../shared/bin/certutil -L -d . -P slapd-<instance>-
> server-cert    u,u,u
> it                   CT,,

Then verified that "server-cert" was considered valid.
> [alias]# ../shared/bin/certutil -V -n server-cert -e -u V -d . -P slapd-<instance>-
> Enter Password or Pin for "NSS Certificate DB":
> certutil-bin: certificate is valid

I also verified that that I can connect using openssl client.
> # openssl s_client -connect localhost:636 -showcerts -CAfile /path/to/it_ca.crt
  --snip--
>     Verify return code: 0 (ok)
> ---

Any hints as to what I might be doing wrong are greatly appreciated.

Thanks,
-Jake





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