[Ubuntu] *.deb 파일 설치 방법

확장자가 .deb 인 파일은 원래 Debian 리눅스에서의 설치파일입니다.
Ubuntu 는 원래 Debian 리눅스에서 파생되었기 때문에, 많은 부분에서 서로 닮아 있습니다. 따라서 별다른 변환 절차 없이 아래와 같이 바로 설치가 가능합니다.

[user@hostname]# sudo dpkg -i *.deb

*.rpm 파일을 *.deb 파일로 변환


[user@hostname]$ sudo apt-get install alien
[user@hostname]$ sudo alien -c *.rpm

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Install and run an FTP server using Docker

To install and run an FTP server using Docker, follow these steps. We’ll use the popular stilliard/pure-ftpd image, which is a lightweight and widely used FTP server. Step 1: Install Docker Make sure Docker is installed on your machine. If it isn’t, install it using the instructions below: Ubuntu/Debian: sudo apt update sudo apt install docker.io -y Mac: Install Docker Desktop from Docker's website . Windows: Install Docker Desktop from Docker's website . Verify Docker is installed: docker --version Step 2: Pull the FTP Server Docker Image Use the stilliard/pure-ftpd image, which is a simple and effective FTP server. docker pull stilliard/ pure -ftpd Step 3: Run the FTP Server Run the FTP server container using the following command: docker run -d --name ftp-server \ - p 21 : 21 -p 30000 - 30009 : 30000 - 30009 \ - e FTP_USER_NAME=testuser \ - e FTP_USER_PASS=testpass \ - e FTP_USER_HOME= /home/testuser \ stilliard/pure-ftpd Explanation...
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CDPEvents in puppeteer

In Puppeteer , CDPEvents refers to events emitted by the Chrome DevTools Protocol (CDP) . Puppeteer leverages CDP to interact with and control a Chromium-based browser. CDP provides detailed, low-level access to browser internals, such as network traffic, console logs, page lifecycle events, and more. You can listen to these CDP events through Puppeteer’s API to monitor or intercept browser activity. How to Listen for CDP Events in Puppeteer Enable the Required CDP Domain: Some events require enabling a particular domain (e.g., 'Network' , 'Page' , 'Runtime' ). Use page._client() to Access the CDP Session: Although it’s a bit lower-level, Puppeteer allows access to DevTools through the page._client() API. Example: Listening for Network Requests This example demonstrates how to intercept and log network requests using CDP. const puppeteer = require( 'puppeteer' ); ( async () => { const browser = await puppeteer.launch({ headless...
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Using the MinIO API via curl

Using the MinIO API via curl is straightforward, as MinIO is compatible with Amazon S3 API, so most commands follow a similar syntax. Here’s a guide on how to use curl with the MinIO API for some common operations like uploading, downloading, and managing objects. Prerequisites Access Key and Secret Key : Obtain your MinIO Access Key and Secret Key. MinIO Endpoint : Know your MinIO server endpoint, e.g., http://localhost:9000 . Bucket : You may need an existing bucket name, or create a new one using the commands below. Authentication Header For requests to work with MinIO, you need to include authentication in the headers. MinIO uses AWS Signature Version 4 for signing requests. Common Examples 1. List Buckets To list all buckets in your MinIO account, use: curl -X GET \ - -url "http://localhost:9000/" \ - H "Authorization: AWS <AccessKey>:<Signature>" 2. Create a Bucket To create a new bucket, use: curl -X PUT \ - -url "htt...
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vsftpd default directory

The default directory for FTP users in vsftpd depends on how the FTP server is configured and the user’s home directory setup. Below are different configurations and their impact on the default directory that users are placed in when they connect to the server. 1. Default Directory Behavior with vsftpd When a user logs in via FTP, they are typically placed in their home directory . By default, the home directory is located at /home/<username> , where <username> is the name of the FTP user. For example: If the FTP user is ftpuser , the default login directory will be /home/ftpuser/ . 2. Changing the Default Directory for Users A. Using local_root Configuration You can specify a custom directory (other than the user’s home directory) for FTP users by setting the local_root parameter in the vsftpd configuration file. Open the vsftpd configuration file: sudo nano /etc/ vsftpd.conf Add the following line to specify a new directory for all FTP users: lo...
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How to checkout branch of remote git, 깃 리모트 브랜치 체크아웃

To check out a branch from a remote Git repository, you can follow these steps: 1. Fetch the remote branches First, ensure that your local repository is aware of the remote branches by using git fetch . This updates your local references to the remote branches. git fetch origin 2. Check out the remote branch Once the remote branches are fetched, you can check out the desired branch using git checkout -b and specifying the remote branch. Command: git checkout -b < local -branch- name > origin/<remote-branch- name > Explanation: <local-branch-name> : The name you want to give to your local branch. origin/<remote-branch-name> : Refers to the branch on the remote called origin (which is the default name for the main remote repository) and the branch you want to check out. Example: If the remote branch is called feature-branch and you want to create a local branch with the same name, you would run: git checkout -b feature -branch origin / feature -...
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To download a file from MinIO using Spring Boot, 스프링부트 Minio 사용하기

To download a file from MinIO using Spring Boot, you can utilize the MinIO Java SDK. Here's an example of how you can achieve this: Add the MinIO dependency to your pom.xml file: < dependency > < groupId > io.minio </ groupId > < artifactId > minio </ artifactId > < version > 7.1.0 </ version > </ dependency > Create a configuration file (e.g., MinioConfig.java ) to establish a connection with your MinIO server: ```java import io.minio.MinioClient; import org.springframework.beans.factory.annotation.Value; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; @Configuration public class MinioConfig { @Value( " ${minio.endpoint} " ) private String endpoint; @Value( " ${minio.accessKey} " ) private String accessKey; @Value( " ${minio.secretKey} " ) private String secretKey; @Bean public MinioClient minioClient() { re...
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MAX_POLL_RECORDS_CONFIG in Kafka

The default value of MAX_POLL_RECORDS_CONFIG in Apache Kafka is: 500 What is MAX_POLL_RECORDS_CONFIG ? The MAX_POLL_RECORDS_CONFIG configuration specifies the maximum number of records a Kafka consumer can retrieve in a single call to the poll() method. Key Details: Default Behavior : If not configured, the consumer will fetch up to 500 records per poll. This is a batch size limit and helps in controlling the volume of data processed at a time. Adjusting the Value : Smaller values (e.g., 10 ): Useful for low-latency processing or when you want to process fewer records at a time. Larger values (e.g., 1000 ): Useful for batch processing or applications designed to handle high throughput. Use Case Scenarios : High throughput: Increase the value to minimize the number of poll() calls. Low latency or real-time processing: Decrease the value to process smaller chunks faster. Example Configuration Java Configuration: Properties props = new Properties(); p...
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To switch to a specific tag in a Git repository

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MySQL GRANT

grant all privileges on TABLE_NAME.* to 'username'@'xxx.xxx.xxx.xxx' identified by 'password'; flush privileges; 모든 아이피에서 접근 허용하기 grant all privileges on TABLE_NAME.* to 'username'@'%' identified by 'password'; flush privileges;
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Boilerplate for typescript server programing

Here are some recommended boilerplates and frameworks for TypeScript server programming, depending on your requirements: 1. NestJS (Highly Recommended for Enterprise-Grade Applications) NestJS is a progressive Node.js framework built with TypeScript. It provides an opinionated structure and is excellent for building scalable and maintainable server-side applications. Features : Dependency injection Modular architecture Built-in support for WebSockets, GraphQL, REST APIs Easy integration with tools like Swagger, TypeORM, and Mongoose Getting Started : Install Nest CLI: npm i -g @nestjs/cli nest new project-name Boilerplate is automatically generated with ready-to-use configurations for controllers, services, and modules. Website : https://nestjs.com/ 2. Express with TypeScript Express.js is lightweight and minimal, making it ideal for developers who prefer flexibility over opinionated frameworks. Boilerplate : You can start with an official or community-maintai...
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