1. Simple Topology

1. Simple Topology Preparatory Knowledge Points Router principles: As the third layer device, the basic function of a router is to select routes according to the network layer address.After it judges the packets it receives based on the destination address, it sends them from the interface that can re ...

Posted by Chrysanthus on Sat, 01 Feb 2020 18:44:33 -0800

[machine learning note day22] 4.2. Linear regression case analysis + Boston house price forecast

Article directory 4.2. Linear regression case analysis Linear regression case analysis Boston house price forecast 4.2. Linear regression case analysis Linear regression case analysis Boston house price forecast The regression model built in scikit learn is used to predict the "Boston ...

Posted by pinxue on Sat, 01 Feb 2020 03:36:31 -0800

Third party software for DNS installation of linker Android

Third party software for DNS installation of linker Android Domain name acquisition method Domain name format Key interface Originally, someone on the Internet has set up the corresponding DNS, which is also very convenient to use. Unfortunately, they have to pay dozens of dollars. They have no mo ...

Posted by adrian28uk on Fri, 31 Jan 2020 11:46:51 -0800

Transaction creation of bitcoin exploration

How are bitcoin transactions created? In addition to Coinbase transactions, which are generated from mining, other transactions come from transfers between addresses, or from wallets. When a user initiates a transaction from a wallet, the SendMoney function is called. It is in src/wallet/rpcwallet.cpp: static CTransactionRef SendMo ...

Posted by jl9148 on Fri, 31 Jan 2020 10:03:34 -0800

Fresco of Android open source framework

brief introduction Fresco is Facebook's latest powerful image library for displaying pictures in Android applications, which can load pictures from network, local storage and local resources. Compared with image loader, it has many advantages, such as faster image download speed and can load and displ ...

Posted by jmrothermel on Fri, 31 Jan 2020 09:15:26 -0800

Solution of LVS Dr + preserved

Reference resources https://www.cnblogs.com/liaojiafa/p/6087276.html Four hosts are in a LAN. The ip of LVS_master is 192.168.1.196, LVS backup is 192.168.1.197, the ip of two web servers is 192.168.1.200192.168.1.201, and the virtual ip is 192.168.1.198. It can be seen from the keepalived configuration file. The experimenta ...

Posted by voitek on Fri, 31 Jan 2020 07:53:49 -0800

How to optimize convolutional neural network with genetic algorithm?

Overall thinking First, write a deep learning.py file to train and test the neural network. The parameters to be optimized in deep_learning.py (here we optimize the convolution layers and the number of neurons in each layer) are uniformly written into a list num. Then, the GA.py is written. The list ...

Posted by traxy on Fri, 31 Jan 2020 00:05:35 -0800

Building network with keras

Keras is a higher-level Tensorflow interface application. The Tensorflow framework no longer needs to introduce the third-party keras package, and can directly apply the keras higher-order interface. The threshold of building neural network is reduced, which is more conducive to the use of neural netwo ...

Posted by gamblor01 on Thu, 30 Jan 2020 23:20:28 -0800

Nginx web services (basic theory, operation, access control, nginx virtual host)

Article directory Preface: 1, Nginx service foundation 1.1 overview of nginx 1.2 manual compilation and installation of Nginx 1.3 operation control 2, Nginx access control 2.1 profile introduction 2.2 access status statistics 3, Access control 3.1 install and configure DNS Service 3.2 test DNS r ...

Posted by sols on Thu, 30 Jan 2020 22:33:45 -0800

python basic protocol-microthreaded greenlet gevent

The python base series is being continuously updated:) Article Directory Recall process and thread introduction greenlet gevent monkey summary Recall process and thread introduction We said earlier that threads are responsible for time-consuming operations, because processes are called synchrono ...

Posted by think-digitally on Thu, 30 Jan 2020 19:41:17 -0800