[Freeipa-users] http service keytab for cname virtual host

[Rob Crittenden]

Natxo Asenjo wrote:
> hi,
>
> enable a kerberized site with the fqdn is very easy with freeipa but we
> would like to use virtual hosting and kerberized sites.
>
> I have joined a host webserver01.ipa.domain.tld to a ipa realm. I then
> created a spn HTTP/webserver01.ipa.domain.tld, generated the keytab,
> configured the apache webserver and it works.
>
> Then I created a cname record (vhost) pointing to
> webserver01.ipa.domain.tld. I enabled virtual hosting in the apache
> webserver, configured the vhosts without kerberizing anything. Virtual
> hosts work as expected.
>
> But when I enable a kerberized directory in the vhost, then I see this
> in the log file:
>
> [Wed Mar 28 22:02:14 2012] [error] [client 192.168.0.21]
> gss_acquire_cred() failed: Unspecified GSS failure.  Minor code may
> provide more information (, Permission denied)
> [Wed Mar 28 22:02:14 2012] [debug] src/mod_auth_kerb.c(1578): [client
> 192.168.0.21] kerb_authenticate_user entered with user (NULL) and
> auth_type Kerberos
> [Wed Mar 28 22:02:14 2012] [debug] src/mod_auth_kerb.c(1578): [client
> 192.168.0.21] kerb_authenticate_user entered with user (NULL) and
> auth_type Kerberos
> [Wed Mar 28 22:02:14 2012] [debug] src/mod_auth_kerb.c(1213): [client
> 192.168.0.21] Acquiring creds for HTTP at vhost.ipa.domain.tld.
>
> When not using vhosts, it works although I see similar debugging info
> (but instead of HTTP at vhost.ipa.domain.tld,
> HTTP at webserver01.ipa.domain.tld). So I was wondering if it is possible
> to do this vhost thing. With the ipa tools I can only add service
> principals to joined hosts, not to cnames.
>
> It would be nice to have. Otherwise we need to have one server per
> kerberized site, a bit of an overkill really.

You should be able to add a host entry for the vhost, perhaps with the 
--force flag to let it add w/o a DNS A record. Then you should be able 
to create the service.

rob