It's now possible to install both Puppet Master and Agent on the same host with different certs for each, to avoid future conflicts when managing master server with puppet. You need to have 2 seperate entries on puppet.conf, one in [master] and one in [agent] so that separate certs are generated.
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This article shows you how to Automate iptables for the whole infrastructure (linux/unix) and maintain the state during the lifecycle of a host. We would need to install 2 modules from PuppetLabs so that we can assign Rules based on the requirements, whether its from one destination to another or from one host to multiple destinations or vice-versa.
This article covers the setup and configuration of PuppetDB and Puppetmaster on separate nodes/hosts. I have used PostgreSQL as PuppetDB backend instead of HSQLDB as it's much easier to query and troubleshoot any issues you comes across especially when using Puppet exported resources. Follow this easy-to-follow guide and you should be up and running with a basic config of Puppetmaster and PuppetDB in no time.
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Its possible to configure Puppetdb with PostgreSQL as its much more manageable as compared to the in-built DB that comes with Puppetdb i.e. HSQLDB. Plus its much easier to query and troubleshoot any issues you comes across especially when using Puppet Hiera and exported resources. Follow this easy to follow guide and you should be up and running with a basic config of Puppetdb in no time.
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It’s easy to setup Puppet server and a client in CentOS and RHEL by following the easy-to-follow steps given in this guide. You will need ROOT access for the install and setup.
Pre-requisites (minimal):
Hardware & Software
CPU: 2 vCPU
RAM: 2GB
Hard Disk : 30GB
OS: CentOS, Red Hat Enterprise Linux v 6.x.x
Architecture : x64
Packages: puppet-server and puppet
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