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Linux / Unix Hardware

News and tutorials about computer, server hardware, and operating systems that is used by Information Technology (IT) professionals and data centers ( rss feed ).

How to protects Linux and Unix machines from accidental shutdowns/reboots with molly-guard

Oops! I did it again. I thought I was logged into my home server. Turns out I rebooted the db server. Another my not so favorite is typing "shutdown -h 0" into the wrong terminal. I know a few people who have admitted to doing that here.

My anger that can't be contained
Is there any end to the madness? Do I need to suffer from accidentally random reboots and shutdowns? After all, it is human nature to make mistakes, but one should not keep on making the same mistakes again and again.

Intel's Atom C2000 chips are bricking products, and it’s not just Cisco hit. From the theregister:

Intel's Atom C2000 processor family has a fault that effectively bricks devices, costing the company a significant amount of money to correct. But the semiconductor giant won't disclose precisely how many chips are affected nor which products are at risk. Coincidentally, Cisco last week issued an advisory warning that several of its routing, optical networking, security and switch products sold prior to November 16, 2016 contain a faulty clock component that is likely to fail at an accelerated rate after 18 months of operation.

Intel has "Silvermont" which is a microarchitecture for low-power Atom, Celeron and Pentium branded processors used in systems on a chip (SoCs) made by Intel. It includes:

  1. Avoton – SoCs for micro-servers and storage devices.
  2. Rangeley – SoCs targeting network and communication infrastructure.

How to use CoreFreq CPU monitoring software on Linux

Recently I came across an excellent software called CoreFreq. It is a CPU monitoring software designed for 64-bits Processors w/ architectures Intel Atom, Core2, Nehalem, SandyBridge and superior, and AMD Family 0F. It runs on 64 bit Linux system. CoreFreq provides a framework to retrieve CPU data with a high degree of precision:

Talos Secure POWER8 Linux Workstation With Fully Open Source Firmware

Raptor Engineering is working and crowdfunding a high-end power8 based desktop computer with zero proprietary firmware blobs in the Talos Secure Workstation. Traditionally IBM, Oracle(Sun), Intel/AMD and others ruled this market segment. But now there is competition to Intel for a desktop computer.
talos openpower

System76 brings 4K display Ubuntu Linux laptop for Pro users

Finally, some good news for Apple fans who crashed System76 website a few days back. Apple makes a good laptop. However, they lack the option to add additional RAM or ports or graphics card. The new System76 Oryx laptop has a 4K HiDPI display. If you are a sysadmin, DevOps, or developer, give it a try to System76.
System76 Oryx Pro with 4K display

Accessing Internet from cloud VM when you have only private network enabled

We have a couple of virtual servers hosted with Softlayer for processing data and backup purpose. The public interface is completely turned off i.e. no Internet access. We can only access VMs using a VPN. It resulted in decreased costs and many security problems for backend servers. However, when you order "Private Network Only" cloud VM, you cannot route outgoing traffic to the Internet using your VM.

First 64 bit Raspberry Pi 3 released and here are the complete specs and pricing

A new version of the Raspberry PI 3 has released and it is amazing. It is 10x the performance of Raspberry Pi 1. Here are the complete specs for new 64-bit credit card size computer.
Fig.01: Raspberry Pi 3 - Model B - 64 Bit ARMv8 with 1G RAM and WiFi

10 Places To Buy A Laptop With Linux Preloaded

linux-computer-preloaded-laptop
I want a Linux system without having to pay a Microsoft tax. The hardest part of using Linux is to find out the correct hardware. Hardware compatibility and drivers can be a big issue. But where one can find Linux desktops or Laptop for sale? Here are ten places to buy a preinstalled Linux Desktop and Laptop in alphabetical order.

15 Useful Linux and Unix Tape Managements Commands For Sysadmins

Tape devices should be used on a regular basis only for archiving files or for transferring data from one server to another. Usually, tape devices are all hooked up to Unix boxes, and controlled with mt or mtx. In this tutorial you will learn about:

  • Tape device names
  • Basic commands to manage tape drive
  • Basic backup and restore commands

Display Awesome Linux Logo With Basic Hardware Info Using screenfetch and linux_logo Tools

Do you want to display a super cool logo of your Linux distribution along with basic hardware information? Look no further try awesome screenfetch and linux_logo utilities.