Author Archives: Farzand Ali

Top Things To Do After Installing Ubuntu 14.04/13.10/13.04/12.10/12.04

Ubuntu 14.04 LTS and  its official flavours have been released a couple of days before. In this brief how-to, let us discuss how we can enhance Ubuntu 14.04 and other older versions further for day to day activities. This post we will share some interesting insights and ideas about what you can and should doContinue reading “Top Things To Do After Installing Ubuntu 14.04/13.10/13.04/12.10/12.04”

How do I configure swappiness? (Swap file)

The Linux kernel provides a tweakable setting that controls how often the swap file is used, called swappiness A swappiness setting of zero means that the disk will be avoided unless absolutely necessary (you run out of memory), while a swappiness setting of 100 means that programs will be swapped to disk almost instantly. UbuntuContinue reading “How do I configure swappiness? (Swap file)”

vSphere 5.5 – How to install and configure VMware ESXi 5.5

Realtek network cards and VMware ESXi 5.5 Yesterday I decided to upgrade my two ESXi servers from ESXi 5.1 to ESXi 5.5 since the update came out some time ago. The upgrade from ESXi 5.0 to ESXi 5.1 went great, without any problems. But this time, that is not the case. My two ESXi serversContinue reading “vSphere 5.5 – How to install and configure VMware ESXi 5.5”

Shellshock (bash vulnerability/bash bug)(Deadly serious’ new vulnerability found)(All OS X and Linux systems wide open)

A new vulnerability has been found that potentially affects most versions of the Linux and Unix operating systems, in addition to Mac OS X (which is based around Unix). Known as the “Bash Bug” or “ShellShock,” the GNU Bash Remote Code Execution Vulnerability (CVE-2014-6271) could allow an attacker to gain control over a targeted computerContinue reading “Shellshock (bash vulnerability/bash bug)(Deadly serious’ new vulnerability found)(All OS X and Linux systems wide open)”

Critical Error Failed to Create the VirtualBox COM object error and resolution

VirtualBox will not start and present a Critical Error dialog box which reads “Failed to create the VirtualBox COM object. The application will now terminate.” If you select Details for additional information, it may offer something similar to this error, if not the same, Callee RC: CO_E_SERVER_EXEC_FAILURE (0x80080005). Here is a solution that worked inContinue reading “Critical Error Failed to Create the VirtualBox COM object error and resolution”

Recommended size in percentage for each partition (Ubuntu / Linux)

I have seen most of dedicated hosting companies servers always have multiple partition for various folders. I have tried to follow some guide lines on my own on virtual box. I always use swap space as double the ram. let’s say TS = total Size SS = Swap Size MS = Main Size MS =Continue reading “Recommended size in percentage for each partition (Ubuntu / Linux)”