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.

  1. puppetlabs/Firewall = Standard module for iptables.
  2. puppetlabs/Firewall_multi = Module that takes care off when adding multiple source/destination/ports in one Rule.
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When adding multiple users in IDM/freeIPA its a pain inputting each user and its time consuming. This script/one liner allows you to enter multiple users at one go and it includes non-interactively specifying a password. The following script allows creating multipe users in IPA and then adding the required attributes as well.

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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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The process of upgrading Red Hat Satellite 5.6 to 5.7 is fairly simple if you follow the steps properly and have got enough space on the host while upgrading. There are many new features in Satellite 5.7 which includes integration of IDM for User Authentications and a major upgrade to the text editor which make it a hell of a lot easier to edit files PLUS the NEW User interface gives it a new life. 

NOTE: This guide is applicable only to Red Hat Enterprise Linux v6.x and above.

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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...
When adding multiple users in IDM/freeIPA its a pain inputting each user and its time consuming. This script/one liner allows...
This article covers the setup and configuration of PuppetDB and Puppetmaster on separate nodes/hosts. I have used PostgreSQL as PuppetDB...
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