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...
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:...
This article will guide you on creating a custom Self-signed SSL Certificate in no time. For creating one you would need top have Root access to the host. SSL Certificate is used for securing the access to a website or any apache based WebUI you use and that includes...
This guide is for configuring dual instances of ssh on a single server and bind them to seprate NIC's/Interfaces/Ethernet ports. Usually this is required in DEV and Prod environments wherein you need additional security and separation of bandwidth and keep DEV and...
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...
If you are finding it difficult to recognize files and folders in RaspberryPi DebianWheezy dist OS, you can enable Ls COLORS to make them more recognizable. All you need to do is edit /.bashrc and logout and login back to enable it. Login to RaspberryPi via SSH and...
It is possible to automatically get a Kerberos Ticket (kinit) generated everytime you login via SSH to a host by editing ".bash_profile". This also applies to a scenario wherin you are using Red Hat IDM/IPA and want to automate "kinit" instead of a user have to...
It is possible to use DCUI (Direct Console User Interface) via SSH session to ESXi. At the command prompt just type in "dcui" and then you would be able to see the same screen as given below. You need to resize the SSH window BIG enough otherwise the DCUI window tends...
This article will explain how to go about installing VMWare Tools for CentOS/Red hat v6 & above. The install can be done via SSH Putty session but the recommended method is doing it via VMware console session and reason being that as it updates drivers that...
This article will show you how to Telnet via BASH script and return the status as open or close. This has been tested on CentOS/RedHat and hopefully should work on all other Linux distributions as well. Create a file telnet_script.sh. This script is to Telnet SSH port...
Its easy to update vCenter Server Appliance and can be done using the WEB interface of vCSA. In this article I upgraded from v5.5.0 Update2b to v5.5.0 Update 2d. Take a snapshot of vCenter Server Appliance before you update just to be on a safe side if things go...
I wanted to share my experience building a ESXi HOME LAB with VPN access that can be used for development and testing purposes and also making sure its the most energy efficient setup and light on your pocket coupled with good performance and negligible noise. This...