Author: kittycool only

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White Paper on Mellanox seamless integration with OpenStack

Mellanox’s Ethernet solutions enable cloud data centers to achieve the highest efficiency through a high-performance, low latency cloud network with rich network offload with acceleration and automation features.
Check out the attached Whitepaper from Mellanox and see how we can help you get it there!

See Mellanox Seamlessly Integrates with OpenStack, Increasing Efficiency and Reducing Operational Costs

 

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Largest Collection of Breached data found

The largest collection of breached data in history has been discovered, comprising more than 770m email addresses and passwords posted to a popular hacking forum in mid-December…..

For more information, do take a look at https://www.theguardian.com/technology/2019/jan/17/breached-data-largest-collection-ever-seen-email-password-hacking

You can check whether your account is compromised b Security Researcher Troy Hunt who runs the Have I Been Pwned breach-notification service.

 

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Getting on board Nvidia GPGPU on CentOS KVM

  1. For vGPU test you’ll need a license, which can be requested here:
    https://www.nvidia.com/object/nvidia-enterprise-account.html
  2. Other documentation for installing vGPU on  Red Hat / CentOS is here:
    https://docs.nvidia.com/grid/latest/grid-vgpu-user-guide/index.html#red-hat-el-kvm-install-configure-vgpu
  3. Virtual GPU Software Quick Start Guide
    https://linuxcluster.wordpress.com/2019/01/28/virtual-gpu-software-quick-start-guide/

In summary the steps are:
– Install a piece of sw in the host/hypervisor to help virtualize GPUs
– Install the GPU drivers inside the guest OS of the VMs
– Install a license server (flex) for the licensing
– Configure license server and settings within the VM to connect to the license server

 

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IBM and Quantum Computing

News from IBM on Quantum Computing

Quiskit

Quiskit – the “Quantum Information Science Kit” SDK is an open source platform that allows developers and coders familiar with Python and Jupyter Notebooks to program our quantum computers https://github.com/Qiskit

  • QISKit AQUA builds and runs algorithms, and contains algorithms and domain-specific tools, making it possible to run classical computing applications on quantum computers, as well as for others to build their own applications. Aqua is one of four Qiskit elements:
  • Qiskit Terra: the ‘earth’ element, is the foundation on which the rest of the software lies. Terra provides a bedrock for composing quantum programs at the level of circuits and pulses.Qiskit Ignis: the ‘fire’ element, is dedicated to fighting noise and errors and to forging a new path. This includes better characterization of errors, improving gates, and computing in the presence of noise.
  • Qiskit Aer: the ‘air’ element, permeates all Qiskit elements. To really speed up development of quantum computers we need better simulators, emulators and debuggers.

News about IBM Q

Quantum Computing in the NISQ era and beyond
http://quantum-journal.org/?s=Quantum%20Computing%20in%20the%20NISQ%20era%20and%20beyond&reason=title-click
https://quantum-journal.org/papers/q-2018-08-06-79/

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Alert on DNS Flag Day

For Full Details, see [SingCERT] Alert on DNS Flag Day 

Background
Domain Name System (DNS) infrastructure operators and Internet service providers are taking part in the first DNS Flag Day [1] on 1 February 2019. This is a global initiative to promote the use of Extension Mechanism Protocol for DNS (EDNS) [2] where participants, software and service providers such as Google and Cloudflare, are going to remove non-standard DNS workarounds.

Affected
Authoritative nameservers that bypass and do not support the EDNS protocol and those with proprietary implementations of the DNS protocol, e.g. legacy load balancing appliances.

Impact
Internet users might experience slowness or inaccessibility issues when interacting with domains whose authoritative nameservers are affected, such as accessing websites or sending emails.

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Building Public Key, SSH Private Key and Authorized Key

If you are rebuilding the ssh keys for a user who has accidentally destroyed their files inside .ssh directory

Step 1: Generate the Private Key

# ssh-keygen -t rsa

Step 2: Generate the Public Key from Private Key

# ssh-keygen -y -f ~/.ssh/id_rsa > ~/.ssh/id_rsa.pub

Step 3: Generate the Authorized Key

# cat .ssh/id_rsa.pub >> .ssh/authorized_keys

Step 4: Generate Config File

# touch ~/.ssh/config
StrictHostKeyChecking no