November 7, 2014

Virtual Machine Cannot Start (Vmware) – ESX/ESXi – 5.0

VMware,

Problem: Virtual Machine Cannot Start (Vmware) – ESX/ESXi – 5.0 Explanation: There will be situations where the VM on a host fails to start without showing any progress when the...

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November 5, 2014

Increase VMware VM performance by placing the Swap file in an alternate location – ESX/ESXi 5.0

VMware,

In this post you will see how to Increase VMware VM performance by placing the Swap file. By default, a swap file is created when a virtual machine is powered...

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October 3, 2014

Preventing WordPress XML-RPC DDOS Attack

Content management system,

WordPress XML-RPC pingback exploits are used in a number of DDoS attacks in the recent times. WordPress is widely used by many websites that uses a content management system, any...

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July 4, 2014

How to Change the Pool Master in Citrix Xenserver

Cloud Infrastructure,

In Xenserver pooled environment, if the pool master node goes unresponsive due to some reason. We will not be able to access the slave nodes and its corresponding VM’s from...

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June 10, 2014

Steps to Fix VDI Not Available Error in Citrix Xenserver

Cloud Infrastructure,

During a Reboot of a VM at some unavoidable circumstances, the Startup logs might end up with "VDI not available" error. Follow the below steps to fix this:

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May 30, 2014

How to Fix – When Xenserver Host Stuck in Maintenance Mode

Cloud Infrastructure,

In this post you will see how to fix Xenserver Host Stuck in Maintenance Mode. Whenever we restart the xapi service (using either service xapi restart, or xe-toolstack-restart) the API...

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May 19, 2014

Steps to be taken when a VM goes in Read-only mode

VMware,

Whenever there is a file system inconsistency involved, the system mounts in Read-only mode to prevent damage to the system. In Xen, if you come across such a situation you...

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November 1, 2013

Asterisk installation and configuration in Linux Server to make Calls between two VoIP phone

Linux General,Server Management Services,

Asterisk is a free and open source framework for building communications applications and is sponsored by Digium. Asterisk installation will help you make call's easier.

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October 25, 2013

Active Directory Replication

Network,

The Active directory is a database. It designed to handle a large number of read and search operations and a smaller number of changes and updates. Active directory replication is...

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September 20, 2013

Dynamic Routing

Network,

RIP is using the algorithms known as “distance vector algorithms”. They are sometimes known as Ford-Fulkerson algorithms and the term Bellman-Ford is also used. It send the complete routing table

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