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Chapter 3: multi-user task management Main contents: Account management Authority management Process management 1. Account management: Relevant system files: /etc/passwd:Define each user account, which can be read by all users /etc/shadow:Save the encrypted user password, root readable /etc/group:Group users, including all att ...

The front end is implemented by vue, the back end is implemented by spring boot, and the web server is implemented by nginx. Because your website involves databases, you also need to install database services. 1, Server In terms of servers, Alibaba cloud's lightweight application server uses 2-core 2GB memory, system disk 60GB, and linux vers ...

docker basic commands This article is reproduced as follows: Original address 1. Check docker version docker version 2. View docker details docker info 3. View the docker help command docker help If you forget how to use the specific parameters of a command, follow it with – help give an example How to use the param ...

J1900 building centos home nas server These days, I installed a small server with some slag accessories at home and put it at home. The effect is still very good. I post some commands for my installation here. I hope it can provide some ideas to those in need. The system uses CentOS 7. This pagoda panel can install python project manager. Then ...

In our work, we often need to check the real-time network card traffic of the server. Usually, we will check the real-time network card traffic of Linux server through these methods. 1. sar -n DEV 1 2 The sar command is included in the sysstat toolkit and provides many statistics of the system. There are some differences in commands on differ ...

catalogue 1, Epoll event driven process 2, Reactor design pattern 3, Epoll correlation function 1. Create: epoll_create 2. Add, modify or delete events of interest to the EPOLL object: epoll_ctl 3. Collect events that have occurred in the events monitored by the specified epoll: epoll_wait 4, Trigger mode 1. Level_triggered 2. Edge_t ...

This article is reproduced from Ruan Yifeng's Weblog awk tutorial awk is an application for processing text files. Almost all Linux systems come with this program. It processes each line of the file in turn and reads each field in it. awk may be the most convenient tool for text files with the same format per line, such as logs and CSV. aw ...

1. nginx service nginx is a high performance, lightweight web service software. nginx has high stability, low system resource consumption, and high processing power for HTTP concurrent connections. A single physical server can support 30,000 to 50,000 concurrent requests. 2. Compile and install nginx service 1. Preparing the installatio ...

-----Latest update [December 30, 2021]----- Preview of this article's directory structure: 1, Introduction 2, shell variable 1. View variables 2. Variable type 3. Variable operation 4. Common global variables in the system 3, shell options 1. View shell options 2. Set shell options 4, Metacharacter 1. Metacharacter list 2. Citation and escape ...

Original link: Libevent source code learning (0): libevent library installation and simple use catalogue 1. Download and unzip the libevent library 2. Install the libevent library 3. Simply use the libevent library 1. Download and unzip the libevent library The version of libevent 2.0.21 stable is downloaded here. The wget command is ...