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Mate Szalay-Beko commented on ZOOKEEPER-3482:
---------------------------------------------
I updated my two PRs. I think, this bug report can be closed (after the PRs got
merged).
In the PRs I added new unit tests and updated the ZooKeeper Admin Guide, and
ZooKeeper Programming Guide (these are stored in git).
I also updated the wiki here:
https://cwiki.apache.org/confluence/display/ZOOKEEPER/Client-Server+mutual+authentication
Together with [~andor] we also tested Kerberos authentication over SSL on real
Hadoop clusters, so I am confident to say that both features are working at
least on 3.5.5, 3.5.6 and on the current 3.6 and master branches.
I know that there is an other requirement in this Jira, namely: allowing client
SSL for ZooKeeper without actual authentication (no keystore in client side,
only truststore). This is not working now in ZooKeeper, but I don't think it
would be a bug... this is simply how the SSL feature was designed originally.
(In ZooKeeper SSL was plugged in as an authentication module.) Although I think
it is a good idea and we should implement it. We should issue a separate Jira
for this. I would be happy to work on this, but not sure when I will have time
exactly.
> SASL (Kerberos) Authentication with SSL for clients and Quorum
> --------------------------------------------------------------
>
> Key: ZOOKEEPER-3482
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3482
> Project: ZooKeeper
> Issue Type: Bug
> Components: server
> Affects Versions: 3.5.5
> Reporter: Jörn Franke
> Assignee: Mate Szalay-Beko
> Priority: Major
> Labels: pull-request-available
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
> It seems that Kerberos authentication does not work for encrypted connections
> of clients and quorum. It seems that only X509 Authentication works.
> What I would have expected:
> ClientSecurePort is defined
> A keystore and truststore are deployed on the ZooKeeper servers
> Only a truststore is deployed with the client (to validate the CA of the
> server certificate)
> Client can authenticate with SASL (Kerberos)
> Similarly, it should work for the Quorum SSL connection.
> Is there a way to configure this in ZooKeeper?
>
> Note: Kerberos Authentication for SSL encrypted connection should be used
> instead of X509 authentication for this case and not in addition. However, if
> it only works in 3.5.5 in addition then I would be interested and willing to
> test it.
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