This is a collection of references that I have found useful in learning about color in data visualization. It is loosely ordered, starting with explanations of deficiencies of the widely-used "rainbow" color map, and moving on to recommendations for good color maps.
Rogowitz & Treinish, IBM
A thorough, scholarly discussion on why the color maps we choose are important.
This gist provides a quick overview of deploying SSL certificates to servers using Salt. I use a wildcard certificate for our domain, which makes management easier.
pillar_ssl-certificate.sls, which should be populated with your certificates and placed in Salt's pillar_roots directory (typically /srv/pillar).state_ssl-certificate.sls in Salt's file_roots directory (typically /srv/salt).top.sls in both the pillar and state top.sls file. (Modify for your minion IDs of course.)Use pillars to distribute sensitive data, such as SSL certificates. Accoring to the [Salt Pillar Walkthrough][2]:
Information transferred via pillar is guaranteed to only be presented to the minions that are targeted, making Pillar suitable for managing security information, such as cryptographic keys and passwords.