It’s possible to enable DNS forwarding using BIND and including reverse lookup for the zone. Once you are done with the config of a basic bind server, all you need to do is configure "/etc/bind/named.conf.options and conf.local" with the following options and restart the service.

In this example we have got 2 DNS server's resolving.

SERVER1 = raspi-qud.hm.local = domain : HM.LOCAL : IP: 172.16.64.1

SERVER 2 = viz-raspi-st.dev.local = domain : DEV.LOCAL :IP: 172.16.66.212

We need to resolve local requests for "hm.local" on SERVER 1 and forward any "dev.local" domain requests (forward and reverse lookups) to SERVER 2 and hence need to configure SERVER 1  to achieve this.

To start with add the zone dev.local to "/etc/bind/named.conf.local" and add the forward zone to the config file.

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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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This is a easy-to-follow setup and config guide for of Cacti (Source install) on CentOS and Red Hat flavour OS. The setup is straightforward as it does not evolve any source code compiling but instead just a MySQL db setup and configuring users and permissions. The setup requires a user to have Root access to a Linux host.

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