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1. Install Logstash 1.1 problems This case requires: Create a virtual machine and install logstashMinimum configuration: 2cpu, 2G memory, 10G hard diskVirtual machine IP: 192.168.1.47 logstash 1.2 steps To implement this case, you need to follow the following steps. Step 1: install logstash 1) Configure the host name, ip and yum so ...

catalogue I Basic concepts 1. Common environment variables II command 1. How to view environment variables 2. Other relevant directives 3. Test PATH III Organization of environmental variables IV Get environment variables through code V Get environment variables through system call Vi Environment variables usually have global attribut ...

network namespace is an important function provided by linux kernel to realize network virtualization. It can create multiple isolated network spaces. The firewall, network card, routing table, neighbor table and protocol stack in an independent network space are independent. Whether it is a virtual machine or a container, when running in a sep ...

Turn off firewall and selinux # systemctl stop firewalld systemctl disable firewalld Disable Selinux vim /etc/selinux/config Change to disabled SELINUX=disabled Note: the above configuration takes effect only after restart, so it is necessary to temporarily close selinux firewall setenforce 0 Install Apache # yum -y install httpd Start A ...

1. Upgrade the website operation platform 1.1 problems The specific configuration is as follows: Clear current configurationDeploy LNMPTest configuration 1.2 steps To implement this case, you need to follow the following steps. Step 1: clear the current configuration 1) Stop Web Service [root@web33 ~]# /usr/local/tomcat/bin/shutdo ...

Through the contents of the first two chapters, I believe we can write simple plug-ins to complete some functions of QQ robot. But because it is running on your own computer, when you close go cqhttp or stop bot When py is running, it will stop the robot. So how can we keep the robot working? That is to deploy our code and go cqhttp on the ...

In the previous tutorial, we have completely developed the core architecture of a master-slave Reactor multithreaded server. The next development focus should shift from architecture to details. Before that, it is necessary and necessary to modernize and engineer the whole project. The first step in C + + project engineering must be to use CMa ...

RH358 configuring MariaDB SQL database – installing MariaDB database Chapter 7 introduces how to configure the database MariaDB. Although it is not deep enough, it is a good start for beginners. It is a more practical chapter in 358 course. 1. Describe the importance of relational databases Relational databases store structure ...

1. About pathname lookup 1.1 treatment process VFS pathname lookup, that is, how to export the corresponding inode from the file pathname. This process can be briefly described as: check the directory entry matching the first name to obtain the corresponding index node. Then, read the directory file containing that inode from the disk, and ch ...

Linux software management - yum tools yum basic overview What is yum yum is the package manager in RedHat and CentOS. It can download and install packages ending in rpm through the Internet, and can automatically handle dependencies without cumbersome downloading and installing again and again. 1. Get software online 2. RPM based manage ...