On 7.1.2014 19:21, Rob Crittenden wrote:
Benjamin Soriano wrote:
Hello all,
Here is the situation. I have a web service (reachable via
service.example.com) that run on two servers (srv1.example.com and
srv2.example.com). The load is distributed on servers by a DNS round robin.
And I want the certificate for https://service.example.com be managed by
IPA (which is my root CA) and take advantage of certificate monitoring.
The two servers are registered in IPA and can request their own
certificate.
I manage to request the certificate on one of the servers by doing the
following :
Create fake host on ds.example.com
> ipa host-add service.example.com
> ipa host-add-managedby service.example.com --hosts=srv1.example.com
> ipa service-add HTTP/service.example.com
> ipa service-add-hosts HTTP/service.example.com --hosts=srv1.example.com
Then request the certificate on srv1 :
> ipa-getcert request -r -f /etc/pki/certs/service.example.com.crt -k
/etc/pki/private/service.example.com.key -N CN=service.example.com -D
service.example.com -K HTTP/service.example.com
It work pretty well. But if I add the second server that way :
> ...
> ipa host-add-managedby service.example.com
--hosts=srv1.example.com,srv2.example.com
> ...
> ipa service-add-hosts HTTP/service.example.com
--hosts=srv1.example.com,srv2.example.com
I can only resquest the certificate on one of the servers. The first
request is going well (no matter on which server I do it) and the second
is stuck in this state :
Request ID '20140107165415':
status: CA_REJECTED
ca-error: Server denied our request, giving up: 2100 (RPC
failed at server. Insufficient access: not allowed to perform this
command).
stuck: yes
key pair storage:
type=FILE,location='/etc/pki/private/service.example.com.key'
certificate:
type=FILE,location='/etc/pki/certs/service.example.com.crt'
CA: IPA
...
Is this a normal behavior?
If yes, what could be the right way to achieve what I want?
Regards,
The problem is you would have two separate, valid certificates for the same
service and we only store one at a time. The second request is going to try to
revoke the original cert in order to issue another one. I'm guessing it is
failing on the revocation step.
I think you'll need to pick one server to manage it and manually copy it to
any other servers. This loses the advantage of certmonger on the other boxes
unfortunately.
I think that 'the right approach' is to issue separate certificates for
srv1.example.com and srv2.example.com and add SAN (Subject Alternative Name)
cn=service.example.com to both of them.
See
http://en.wikipedia.org/wiki/SubjectAltName
I'm not sure how to get such certificate from FreeIPA. Rob, could you add some
details?
--
Petr^2 Spacek
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