Alibaba cloud Centos7 deploys Java web [jar/war/virmach+vps + domain name service]

(1) Part 1: basic jar package running (Tomcat does not need to be configured) [http://60.205.183.114:8081/] 1. Configure Alibaba cloud (Esc student server, image Centos7.7) and connect to the terminal remotely. 2. Install and configure the JDK (refer to https://www.jianshu.com/p/093413f2a04f)a) Install the jdk. b) Find the jdk path configurat ...

Posted on Sun, 31 May 2020 11:37:58 -0400 by LuAn

Deep understanding of system calls

Experiment content: Find a system call whose system call number is the same as the last two digits of the student number [i.e. system call 97] Trigger the system call through assembly instructions Trace the kernel process of the system call through gdb Focus on the analysis of the save site, recovery site and system call return of the system ...

Posted on Wed, 27 May 2020 09:44:19 -0400 by Birmingham

Management of multiple crawlers of the scrapy by using the scrapyd

Note: Environmental preparation is based on Ubuntu16.04 1, Installation sudo pip install scrapyd sudo pip install scrapyd-client 2, Verification Command line input: scraper The output is as follows to indicate successful opening: bdccl@bdccl-virtual-machine:~$ scrapyd Removing stale pidfile /home/bdccl/twistd.pid 2017-12 ...

Posted on Tue, 19 May 2020 11:48:22 -0400 by Josien

Management of multiple crawlers of the scrapy by using the scrapyd

Note: Environmental preparation is based on Ubuntu16.04 1, Installation sudo pip install scrapyd sudo pip install scrapyd-client 2, Verification Command line input: scraper The output is as follows to indicate successful opening: bdccl@bdccl-virtual-machine:~$ scrapyd Removing stale pidfile /home/bdccl/twistd.pid 2017-12 ...

Posted on Tue, 19 May 2020 11:47:57 -0400 by patrikG

Writing an operating system kernel based on mykernel 2.0

Resource download: https://github.com/mengning/mykernel Experiment content: 1. Configure the experimental environment and complete the Linux kernel compilation. 2. Modify the source code of the system, and implement a simple operating system kernel based on mykernel 2.0. 3. This paper briefly analyzes the core functions and operation mechanism ...

Posted on Wed, 13 May 2020 01:02:14 -0400 by jack5100nv

When you buy a new ubuntu server

Install various server software nginx sudo apt-get install nginx Once the installation is complete, use the ip address directly to access the server and you will see the default welcome page for nginx. If installation errors, such as port 80 occupancy, indicate that other network servers have been installed before, it is recommended that you ...

Posted on Mon, 11 May 2020 20:53:43 -0400 by WeAnswer.IT

Docker Redis 5.0 cluster building

1, Prepare tools Install docker (from official website) (1) Install required packages $ sudo yum install -y yum-utils \ device-mapper-persistent-data \ lvm2 (2) Use the following command to set up a stable repository $ sudo yum-config-manager \ --add-repo \ https://download.docker.com/linux/centos/docker-ce.repo (3) Install docker ce(docker C ...

Posted on Mon, 11 May 2020 00:14:10 -0400 by ThYGrEaTCoDeR201

Using kubeadm to build k8s cluster

Using kubeadm to build k8s cluster 1, Environmental preparation: There are two Centos7 hosts, 166(master)167(node01). docker is installed on both hosts. The following operations are performed on both hosts. Modify the contents of the / etc/hosts file [zjin@master ~]$ cat /etc/hosts 10.3.4.166 master 10.3.4.167 node01 Disable firewall [zjin@mas ...

Posted on Thu, 07 May 2020 23:30:46 -0400 by -Zeus-

Ubuntu configure Nginx and Nginx common commands

Download and install Nginx 1.1 install Nginx dependency Library Ubuntu apt-get install build-essential apt-get install libtool yum installation is available under CentOS The centos platform compilation environment uses the following instructions Install make: yum -y install gcc automake autoconf libtool make Install g + +: yum install ...

Posted on Tue, 05 May 2020 16:00:45 -0400 by BinaryStar

ubuntu mysql one click settings, tomcat self startup settings

ubuntu mysql one click settings, tomcat self startup settings There are many mysql settings and tomcat settings designed in recent working environments. These two scripts are listed one by one. mysql one click Settings After mysql is installed, you need to create the corresponding database, import the data file, an ...

Posted on Sun, 03 May 2020 00:26:44 -0400 by mark_kccs