What is reflection and what is the function of reflection
Java's reflection mechanism refers to that in the running state of the program, you can construct the object of any class, understand the class to which any object belongs, understand the member variables and methods of any class, and call the properties and methods of any object. Th ...
Posted by mania on Sun, 22 May 2022 09:29:53 +0300
Source: Huawei router configuration guide
Organize the test notes while learning and share with you. Infringement is deleted. Thank you for your support!
Attach summary sticker: COCOgsta blog_ CSDN blog - video learning notes, experimental notes, translation bloggers
In this example, only legitimate users can establish SSH connectio ...
Posted by Plakhotnik on Sat, 21 May 2022 03:47:33 +0300
In this tutorial, we will discuss how to restrict SFTP users to their home directory or specific directory. This means that users can only access their respective home directories, not the entire file system.
It is important to restrict users' home directories, especially in a shared server environment, so that unauthorized users will not pee ...
Posted by wih on Thu, 19 May 2022 14:27:23 +0300
1. Manual new
2. clone method
3. java comes with serialization
4. json serialization
Deep copy summary
1. spring BeanUtils(Apache BeanUtils)
Shallow copy summary
In the process of java development, we often have deep copy requirements, su ...
Posted by fernyburn on Tue, 17 May 2022 16:56:13 +0300
Jenkins deploys SpringBoot application to remote server
Using SpringBoot and SpringCloud to write background services also introduces the popular concept of micro services, and there are many modules. Jenkins is used as a continuous integration tool to facilitate early testing and later online deployment and update.
Server structur ...
Posted by redtux on Sun, 08 May 2022 12:17:25 +0300
After upgrading to Centos 7.9.2009, I have to upgrade OpenSSH and OpenSSL. After entering too many pits, I finally found some experience. By the way, I jumped over the pit 1. After upgrading OpenSSH first and then OpenSSL, the ssh -V comes out of the old version, which leads to missing scanning 2. Some articles fail due to missin ...
Posted by alex_lana on Mon, 02 May 2022 17:01:56 +0300
This tutorial is mainly about how to set up and use SFTP server on CentOS. Using FTP to transfer data is easy to be invaded by anonymous intruders (if TLS is not used), because its port is open to anyone. SFTP can be used as a safer alternative.
SFTP uses SSH file tr ...
Posted by nagasea on Fri, 15 Apr 2022 00:01:16 +0300
View all port numbers
netstat -anp netstat -anp|grep node
Nuxt start configuration command
npm run start > ../logs/catalina.out 2>&1 &
#pm2 start node_modules/nuxt/bin/nuxt.js --name automated_test_platform_vue > ../logs/catalina.out 2>&1 &
Check whether the port is connected
telnet 220.127.116.11 8080
Posted by sw45acp on Tue, 05 Apr 2022 01:41:35 +0300