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Ways to Mitigate the Meltdown & Spectre Problem

To mitigate the flaws of the two large vulnerabilities vendors have been scrabbling to come out with updates to provide consumers with a fix. If exploited, these vulnerabilities can give hackers unprecedented access to compromised systems and widespread liberty to steal a broad variety of confidential, sensitive data. Their severity, complexity and scope puts them […]

12 dig Command Examples for DNS

dig can we very useful in finding out DNS related issues. To install dig for Window/ Linux/ MacOSX click here. A basic dig command – dig a domain nameIn the most basic of dig commands, you have a domain name like www.microsoft.com, and you want to find information about it, so you issue the following […]

Find Out Dns Server Addresses

The resolver is a set of routines in the C library that provide access to the Internet Domain Name System (DNS). The resolver configuration file contains information that is read by the resolver routines the first time they are invoked by a process.

OR

Sample output:

ESXi 6.0 not detecting BROCADE HBA adapter

Steps: Make sure HBA is connected on the PCI slot and visible under esx hardware list:

Check if VMKernel can detect any storage via Fibre Channel

(output will be blank line if HBA driver is missing but HBA appears to be in PCI card determined from step 1)

Search and download the […]

“Host SMBus controller not enabled!”

CentOS guest instances in VMware sometimes come up with the boot error message:

This error is being caused because VMware doesn’t actually provide that level interface for CPU access, but Ubuntu try to load the kernel module anyway. How to fix it:

add the line:

Reboot. NOTE: for older versions use blacklist i2c_piix4 […]

How to Install VMware Tools on RHEL 7/CentOS 7

VMware Tools is one of important components for virtual machine (VM) in order get excellent performance. It is a group of utilities that help to enhances the overall performance of the virtual machine’s guest operating system (OS) and improves management of the VM. Without the VMware Tools, guest OS performance will lacks some of the […]

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Mohammed Wasay

Dallas based Design Technologist & Hybrid Developer