Upgrade CentOS 7 to openssh 8.0 7.p1
Background summary
OpenSSH (OpenBSD Secure Shell) is a set of connection tools for secure access to remote computers of the Openbsd program group. The tool is an open source implementation of SSH protocol, supports encryption of all transmissions, and can effectively prevent eavesdropping, connection hijacking and other network level attacks. ...
Posted by tbeinc on Fri, 20 May 2022 04:59:54 +0300
Use chroot to restrict SFTP users to the home directory
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
Build enterprise data network disk step by step
Tip: after the article is written, the directory can be generated automatically. Please refer to the help document on the right for how to generate it Overview of Linux system operation and maintenance
preface
Enterprise network disk is an enterprise data network storage and management solution based on the concept of cloud computing ...
Posted by maseeha on Thu, 19 May 2022 00:17:04 +0300
Solve the problem that Oracle occupies too much disk
background
After the database has been running for some time, the table space has been increasing, but the actual amount of data is not so large. Deleting data or truncate tables does not reduce the tablespace. This is because when the table space is insufficient, it will expand automatically, but it will not shrink automatically.
terms of se ...
Posted by lorewap3 on Wed, 18 May 2022 03:56:25 +0300
Shell Programming Specification Variable Details (shell programming specifications in Linux, how scripts are executed, pipe symbols and redirections, shell variable types)
Preface
Shell is a program written in C that serves as a bridge for users to use Linux. Shell is both a command language and a programming language. _The execution of Linux commands must depend on the shell command interpreter. Shell is actually a special program that runs in the Linux operating system. It is located between the kernel of ...
Posted by simonmlewis on Sun, 15 May 2022 20:50:07 +0300
Detailed introduction of crontab service for scheduled tasks under linux
1, Introduction to crontab
1. crontab is used to allow users to execute programs at fixed times or intervals If you need to implement the task scheduling function on linux platform, you can write cron script to implement it. Perform tasks at a certain frequency linux will start the crond process by default. The crond process does not need to b ...
Posted by lrsdsout on Sun, 15 May 2022 18:18:13 +0300
Cool interface and powerful function! This Linux performance real-time monitoring tool is super easy to use! Old Smith, do it!
For the maintenance and management of Linux system, its performance monitoring is very important, especially the real-time monitoring data. This data is helpful for us to judge the load pressure of the server, adjust the resource allocation in time, and better serve the business. So today, the migrant worker brother gives you a Linux performanc ...
Posted by pido on Sun, 15 May 2022 13:19:02 +0300
harbor private warehouse summary
1, Introduction to Harbor
Harbor is an open source enterprise dockerregistry (warehouse) project of VMware. The project address is https://github.com/vmware/harbor.
Harbor's goal is to help users quickly build an enterprise level DockerRegistry service.
Based on docker's open source registry, Harbor provides functions required by enterprise u ...
Posted by sith717 on Sat, 14 May 2022 10:39:11 +0300
Linux Advanced - continuous deployment software ansible
catalogue
introduce
relationship
install
Default profile structure
Introduction to Inventory
Inventory parameter
Inventory configuration case
Ansible common modules
Ansible execution mode
Execute ad-hoc command
Execute the ansible playbook script
introduce
Understand the concept of CI/CD before being ansible: CICD refers to Contin ...
Posted by alsaffar on Sat, 14 May 2022 00:14:16 +0300
Linux common commands
1, Basic format of command
command prompt
[root@localhost~]#
Of which:
rootCurrent login userlocalhosthost name~Current directory#Prompt for superuser$Prompt for ordinary users
Command format
command [option] [parameter]
==Note: = = individual commands do not follow this format. When there are multiple options, they can be written t ...
Posted by lancia on Fri, 13 May 2022 23:53:07 +0300