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How to check which ports are open in Linux

How to check which ports are open in Linux

How to check open ports in Linux: 1. Use the "netstat -anp" command to check which ports are open; 2. Use the "lsof -i:$PORT" command to check the program that uses the port, or check the file "/etc/services" ”, just find out the service corresponding to the port.

Mar 09, 2023 am 09:50 AM
linux
What is the role of dhcp server

What is the role of dhcp server

The function of the dhcp server is to "dynamically allocate management IP addresses". DHCP refers to the Dynamic Host Configuration Protocol, which has two main uses: 1. Automatically assign IP addresses to internal networks or network service providers; 2. Use it as a means of central management of all computers for users or internal network administrators.

Feb 28, 2023 pm 05:15 PM
dhcp服务器 dhcp 服务器
What to do if the ssh command cannot be found under Linux

What to do if the ssh command cannot be found under Linux

Solution: 1. Execute the "yum install ssh" command to install the SSH service; 2. Execute the "service sshd start or /etc/init.d/sshd start" command to start the SSH service; 3. Execute the "vi /etc/ssh/sshd_config " command to edit the SSH service configuration file; 4. Modify its default port number to 10022; 5. Change the firewall configuration and open port 10022.

Feb 17, 2023 am 11:46 AM
linux
How to check SSH version in Linux

How to check SSH version in Linux

Checking method: 1. Use a text editor to open "/etc/ssh/sshd_config" and check the "Protocol" field. If "Protocol 2" is displayed, it means that the server only supports SSH2. If "Protocol 1" is displayed, it means that the server supports both SSH2 and SSH2. By. 2. Force ssh to use a specific SSH protocol and judge by checking the response of the SSH server. 3. Use the scanssh tool with the syntax "sudo scanssh -s ssh ip address".

Feb 15, 2023 am 11:28 AM
linux ssh
What are the 5 stages of the Linux system startup process?

What are the 5 stages of the Linux system startup process?

There are five stages in the system startup process: 1. Kernel boot stage; when the computer is powered on, it first performs a BIOS power-on self-test and starts according to the startup device (usually a hard disk) set in the BIOS. 2. Run the init phase; the init process is the starting point of all processes in the system. Without this process, no process in the system will start. 3. System initialization phase; call rc to complete some system initialization work. 4. Establish the terminal stage. 5. User logs into the system.

Feb 09, 2023 am 11:42 AM
linux
How can git clone operate the specified branch code?

How can git clone operate the specified branch code?

"git clone" can clone the specified branch code. What the "git clone" command does is clone the repository into a new directory, create remote tracking branches (visible with "git branch -r") for each branch in the cloned repository, and clone the checked out repository from Act as the initial branch for the currently active branch.

Feb 02, 2023 pm 04:44 PM
Git GitHub
Teach you step by step how to use vscode to connect to a remote server

Teach you step by step how to use vscode to connect to a remote server

How to encode on remote server? Vscode is your first choice! ! ! Of course, there are many other options, such as sublime, ultraedit, etc. Here we use the very popular vscode to connect to the ubuntu server for explanation!

Dec 21, 2022 pm 08:50 PM
服务器 远程控制 VSCode
A summary of frequently asked questions about PHP multi-process development interviews (with answers)

A summary of frequently asked questions about PHP multi-process development interviews (with answers)

This article brings you relevant knowledge about PHP, which mainly introduces issues related to PHP multi-process development. Here is a summary of some multi-process development issues for you, with answers. Let’s take a look at them together. I hope it will be helpful to everyone. helpful.

Dec 21, 2022 pm 05:30 PM
php 多进程
Take you to master the formatting method in VSCode

Take you to master the formatting method in VSCode

How to format the program in VSCode? This article will guide you step by step to understand and master the formatting method in VSCode. I hope it will be helpful to you!

Dec 02, 2022 pm 09:18 PM
VSCode
What does Apple Keychain mean?

What does Apple Keychain mean?

Apple Keychain is Apple's password management system in Mac OS; it was imported in Mac OS 8.6 and included in all subsequent Mac OS versions, including Mac OS X; a keychain can contain many types of data , such as passwords, private keys, electronic certificates and encrypted notes, etc.

Nov 18, 2022 pm 04:17 PM
苹果钥匙串
An article explains in detail how golang implements ssh related operations

An article explains in detail how golang implements ssh related operations

​This article is introduced by the golang tutorial column to you on how golang implements SSH connections and other related operations. I wonder how much you know about SSH? Let me talk to you in detail about the operational issues related to Go's implementation of ssh. I hope it will be helpful to friends who need it!

Nov 09, 2022 pm 04:01 PM
ssh Go
How does vscode connect to a remote server? (Picture and text tutorial)

How does vscode connect to a remote server? (Picture and text tutorial)

How does vscode connect to a remote server? This article will share with you a tutorial on connecting to a remote server with vscode in the form of pictures and texts (fool-style teaching). I hope it will be helpful to you!

Nov 07, 2022 pm 08:18 PM
VSCode
Let's talk about how to use GitHub Actions to automatically deploy Laravel projects

Let's talk about how to use GitHub Actions to automatically deploy Laravel projects

How to automatically deploy Laravel projects using GitHub Actions? In this article, I will walk you through how to automatically deploy your Laravel application on a VPS for free.

Oct 19, 2022 pm 08:11 PM
php Laravel
What protocol does ip belong to in computer network architecture?

What protocol does ip belong to in computer network architecture?

IP belongs to the "network layer" protocol of computer network architecture. IP refers to the Internet Interconnection Protocol, which is a network layer protocol in the TCP/IP system. It can provide information of various protocols to the transport layer, such as TCP, UDP, etc.; IP information packets can be placed in the link layer through Various technologies such as Ethernet and Token Ring network are used for transmission.

Aug 29, 2022 pm 04:12 PM
IP ipv4 TCP/IP IP地址

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