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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 […]

R.I.P. nslookup – Start using dig or host

I have been using nslookup for the longest time I can remember. Although, this may be an older topic to some, it may be a newer topic to most Windows users. Dear Windows users, nslookup has been deprecated. The organization that maintains the code for nslookup, Internet Systems Consortium (ISC), has very clearly stated it in the most […]

How to Configure Time Server (NTP Server) on Centos 7?

Prerequisites: VM/ Physical – It is recommended to have the time server as a physical server, but VMs should be okay depending on your setup and requirement. My virtual lab environment is VMware based so here’s the guide for a VM. Once the CentOS Minimal is installed on the VM make sure to install open-vm-tools. […]

How to restart management agents on ESX or ESXi host

If you are not unable to connect ESXi server to vCenter, or when you cannot connect to ESXi server from VI client it may be necessary to restart the management agents on ESX or ESXi host. To restart the management agents on ESXi 6.x This applies to ESX4/5.x/6.x For the restart of the management agents (mgmt-vmware […]

Using PowerShell or PowerCLI to update VMware tools on VMs

We need to first find out what VMs need updating. Run the following command to get the list:

VMware makes it easy to update VMware tools through the console, but clicking through hundreds of VM’s takes too much time. Thankfully VMware has provided us with the Update-Tools cmdlet so we can automate this process. Here […]

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.


Sample output:

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“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 […]

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Mohammed Wasay

Dallas based Design Technologist & Hybrid Developer