Fei Hu's Blog

To understand better by writing

Yayoi Kusama Infinity Mirrors Exhibition

Yayoi Kusama: Infinity Mirrors is a celebration of the legendary Japanese artist’s sixty-five-year career and promises to be one of 2017s essential art experiences. Visi...

Some Concepts in Convolutional Neural Network

Taken from http://cs231n.github.io/convolutional-networks/

Note: all the content comes from http://cs231n.github.io/convolutional-networks/ A simple ConvNet is a sequence of layers, and every layer of a ConvNet transforms one volume of activations to anot...

Shrink the image to support smaller flavor

When snapshot an instance to get an image, the snapshot will keep the flavor information in the image. Then this image will require the disk size in the flavor for the new instance to be larger tha...

Resize OpenStack Image

The image from OpenStack Snapshot is usually much bigger than the used disk in the virtual machine. That is because a snapshot is the entire disk, so the snapshot will be much bigger than the origi...

RDO CentOS-7 Image SSH Password Issue for OpenStack

RDO provides a lot of images for OpenStack platform (https://www.rdoproject.org/resources/image-resources/, http://docs.openstack.org/image-guide/obtain-images.html), but when uploading CentOS7 ima...

Network Issues in OpenStack Installation (Juno)

OpenStack Networking(neutron) is a pluggable, scalable and API-driven system for managing networks and IP addresses. It enables Network-Connectivity-as-a-Service for other OpenStack services, such ...

Several Notes for Building A Blog with Github Pages and Jekyll

Several notes for building a blog with Github Pages and Jekyll username.github.io The username should be the same with the username of github Install Jekyll Ruby: ruby —version Bundl...

How to set up Ubuntu14.04 firewall

Ubuntu does not start any firewall in default, so we had better set up some rules for the network in case of any safety issues. The following will make a short introductions about how to set up the...