Five ways to modify hostname in CentOS7

Reprinted from: https://blog.csdn.net/liumiaocn/article/details/103170673 Narration This article is used to introduce the five setting methods of hostname under CentOS 7. Although many methods can be used on different distributions of Linux, they are not verified in this article. Confirm hostname ...

Posted by intercampus on Mon, 10 Feb 2020 05:13:27 -0800

How to use CouchDB wallet in Fabric Node SDK

When an application interacts with a Hyperledger Fabric network, the Fabric node first verifies the identity of the application, that is, whether the certificate held by the application allows access to the Hyperledger Fabric network.In Hyperledger, these identities are stored in the wallet.In this tutorial, we will show you how to use a CouchD ...

Posted by andrewgarn on Sun, 09 Feb 2020 20:49:30 -0800

tensorflow learning notes + program simple neural network and MNIST data set

Simple neural network for regression problem import tensorflow as tf import numpy as np import matplotlib.pyplot as plt # Generate random points x_data = np.linspace(-0.5,0.5,200)[:,np.newaxis] # [:, np.newaxis] add a dimension to X ﹣ u data. The original data and the original type remain the sa ...

Posted by Loryman on Sun, 09 Feb 2020 06:40:32 -0800

Windows play Kubernetes series 3-Centos installation K8S

References of previous articles: Windows play Kubernetes series 1-VirtualBox installation Centos Windows play Kubernetes series 2-Centos install Docker Install K8S yum install -y kubeadm The corresponding dependency packages will also be installed on kubelet, kubeadm, kubectl and kubernetes CNI kubeadm: one click deployment tool of k8 cluster, ...

Posted by jeffery on Sun, 09 Feb 2020 05:50:50 -0800

PTA group programming TIANTI competition - exercise set L2-016 wish all lovers in the world are brothers and sisters who have been separated for many years (25 points)

Ha-ha. We all know that intermarriage is not allowed within five uniforms, that is, two people cannot intermarry if their nearest common ancestor is within five generations (i.e. themselves, parents, grandparents, great grandparents, and great grandparents). Please help a couple of lovers to judge wh ...

Posted by fcaserio on Sat, 08 Feb 2020 22:54:50 -0800

Introduction to Python neural network (handwritten digit recognition)

1.1 personal records ① Using Python 3.7 ② The editor is pycharm (I don't think it's easy to use, many libraries will fail directly, and print can't save - complaints of lazy cancer), the solution. For example, scipy, please download pip install scipy in cmd. imshow () does not show the problem of imag ...

Posted by David Rech on Sat, 08 Feb 2020 09:07:01 -0800

Introduction to deep learning: using long and short-term memory network to predict exchange rate

In the first two blog posts, we introduced Introduction to deep learning (1) --- image recognition with convolutional neural network (1) and Introduction to deep learning (1) --- image recognition with convolutional neural network (2) In this paper, we will introduce the application of long-term and sho ...

Posted by allyse on Sat, 08 Feb 2020 05:22:17 -0800

How to build Redis cluster?

Article directory Preface I. environment 1.1: Environment 1.2: purpose of the experiment 2: Experimental process 2.1: deployment of Redis from master-slave server 2.2: master-slave server configuration file modification 2.3: install rvm and RUBY control cluster software on the main server 2.4: th ...

Posted by minou on Fri, 07 Feb 2020 23:20:53 -0800

sping cloud component link tracking Zipkin

From Here https://www.jianshu.com/p/1ef5cd97ba2b   What is Zipkin Zipkin is an open source distributed real-time data tracking system, designed based on a paper by Google Dapper and developed by Twitter.Its main function is to aggregate real-time monitoring data from heterogeneous systems.Distri ...

Posted by agriz on Fri, 07 Feb 2020 17:46:32 -0800

How to design a cross platform RTMP/RTSP live player with low latency

Development background In 2015, when we tried to find a low latency player for live broadcast on the market to cooperate with the test of our RTMP push module, we found that none of them were easy to use, such as VLC or Vitamio, which were all based on FFMPEG. There were many supporting formats and ...

Posted by EZE on Fri, 07 Feb 2020 05:34:44 -0800