On 23/09/14 17:11, Nate Wolfe wrote:
> We are thrilled to announce the preview release of Puppet Server, our
> newest open source project.
> Puppet Server is a next-generation alternative to our current Puppet
> master, which builds on the
> successful Clojure technology stack underlying projects like PuppetDB.
> 
> Packages are available in the Puppet Labs package repositories, so you
> can try it out today as a
> drop-in replacement for the existing Puppet master.

Very neat, it works well as a drop-in replacement.

The only hitch I've had was with the Foreman report processor, which
makes an HTTPS connection to Apache with mod_ssl.  On new OSes with
modern mod_ssl versions (e.g. EL7 or Ubuntu 14.04), the report processor
fails to make an HTTPS connection from the JVM with the error:

2014-09-26 08:56:09,984 ERROR [puppet-server] Report processor failed:
Could not send report to Foreman at
https://foreman.example.com/api/reports: Could not generate DH keypair
["sun.security.ssl.Handshaker.checkThrown(Handshaker.java:1287)", ...]

This is a well-known problem between JVM clients and recent mod_ssl
versions, as the DH prime length supported by the JVM is limited.
Adding the DH parameter limits to the server's certificate worked around
the problem.

http://httpd.apache.org/docs/current/ssl/ssl_faq.html#javadh

Java 8 worked slightly better in that it accepts 2048 bit parameters,
but the default combination is still a problem.  I guess it might affect
others using HTTPS from the master.

-- 
Dominic Cleal
Red Hat Engineering

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