Deployment of keepalivedkeepalived is used in many highly available clusters. Generally, nginx, ipvs and haproxy are placed in the front end
For example, when we use rabbitmq, we make such a cluster. If we make a cluster generally, we need such a highly available load balancer to distribute traffic. If we use haproxy, For example, if a rebbitm ...
Posted on Thu, 27 Feb 2020 06:20:27 -0500 by kind
Fat (FFmpeg automated testing environment) is an automated testing framework developed by FFmpeg community. It supports the testing of FFmpeg API and FFmpeg internal functions. The test of FFmpeg video filter belongs to the test of API. In order to add a fast test to a video filter, I have studied it fo ...
Posted on Sun, 23 Feb 2020 02:31:10 -0500 by eugene2008
Rootkit is a kind of special malicious software. Its function is to hide the information of itself and specified files, processes and network links on the installation target. What is more common is that rootkit is generally used in combination with Trojans, backdoors and other malicious programs.
In ou ...
Posted on Thu, 13 Feb 2020 00:15:54 -0500 by dreamlove
PC operating system: Ubuntu 16.04 LTS
Compiler: arm poky Linux gnueabi GCC 4.9.1
Based on the i.mx6 platform, the Linux driver module has been modified for some time, in which a lot of information is checked intermittently, and it feels that the knowledge is not so coherent, so it's time to start from t ...
Posted on Tue, 11 Feb 2020 05:10:49 -0500 by crislewis
1, Basic introduction
1 the old version of Qt provides two ways to access XML files: DOM and SAX.
DOM mode: convert XML document into tree structure and store it in memory, and then read it, which consumes more memory. In addition, because documents have been stored in memory, it is more convenient ...
Posted on Tue, 04 Feb 2020 09:12:21 -0500 by pl_harish
Experiment 1 - lighting an LED
1. Check the schematic diagram to determine how the hardware is connected
The schematic diagram shows the hardware circuit of chip controlling LED and how the pin of chip connects with LED.
2. Check the main chip manual to determine how to control the pin
Posted on Wed, 29 Jan 2020 00:40:56 -0500 by thomashw
My virtual machine system is Ubuntu 18, to install redis 5.0.7
This article records the twists and turns of installing redis
You have downloaded redis on the official website and unzip it
tar xvzf redis-5.0.7.tar.gz
Posted on Mon, 27 Jan 2020 11:00:39 -0500 by daftdog
FTP client upload and download module
1. Functions realized:
a. Upload local file to FTP server
b. Download files from ftp server to client
c. Upload the folder (subfolder upload is not supported) to the tfp server, create a new directory and delete the directory
2. Compilation platform: Linux (none) 4. ...
Posted on Mon, 20 Jan 2020 09:20:07 -0500 by joshmaker
Written in the front
H3 has many development boards for reference, mainly including nanopi, orange PI, etc. most of these development boards support debian systems. For the purpose of learning, they want to run an openwrt. Openwrt18.06 has supported many boards of Quanzhi. Here we mainly refer to nanopi-m1-plus
Configuration and principle of op ...
Posted on Fri, 17 Jan 2020 05:46:32 -0500 by AffApprentice
Basic frame design
This experiment will use OpenGL GLUT to write a simple solar system operation system.
Knowledge points involved in the experiment
Fundamentals of C + + language
Basic OOP programming ideas
Basic use of OpenGL GLUT structure
Experimental rende ...
Posted on Fri, 17 Jan 2020 03:48:05 -0500 by xengvang