SSH Key 생성

ssh-keygen -t rsa -C "email@email.com"

댓글

댓글 쓰기

이 블로그의 인기 게시물

"Do you happen to"

The phrase "Do you happen to" is a polite and casual way of asking if someone knows or has something, or if they might be able to do something. It softens the tone of the question, making it sound less direct and more friendly or tentative. Examples: "Do you happen to have a pen I could borrow?" This means: "Do you have a pen I could borrow?" but in a more polite and casual way. "Do you happen to know where the nearest coffee shop is?" This means: "Do you know where the nearest coffee shop is?" "Do you happen to be free this weekend?" This means: "Are you free this weekend?" It adds an element of chance or uncertainty, implying that it's okay if the answer is "no."
자세한 내용 보기

How to change java version on gradle of flutter

To change the Java version used by Gradle in a Flutter project, you need to modify the build.gradle files of your Flutter project. Here's how you can do that: Steps: Locate the build.gradle files: You will find two build.gradle files in your Flutter project: One at the root level: <project_root>/android/build.gradle Another inside the app module: <project_root>/android/app/build.gradle Update the Java version in android/build.gradle : In the root build.gradle file, ensure that the sourceCompatibility and targetCompatibility settings are set to the desired Java version. Open <project_root>/android/build.gradle Look for the compileOptions block (or create it if it's not present). Update the Java version like this: allprojects { repositories { google() mavenCentral() } } subprojects { afterEvaluate { project -> if ( project .hasProperty( "android" )) { android { ...
자세한 내용 보기

Chromium 개발 환경 세팅, 크로미움 개발 준비하기

Chromium 개발 환경을 구축하는 것은 여러 단계로 이루어져 있으며, 이를 위해서는 적절한 도구와 의존성을 설치해야 합니다. 아래는 일반적인 Chromium 개발 환경을 설정하는 방법입니다. 1. 시스템 요구사항 확인 Chromium은 리눅스, 맥OS, 윈도우에서 빌드할 수 있습니다. 이 가이드에서는 Ubuntu를 기준으로 설명하지만, 다른 운영체제에서도 유사한 과정으로 설정할 수 있습니다. 메모리 : 최소 16GB RAM (권장 32GB 이상) 디스크 공간 : 최소 100GB 이상의 여유 공간 운영체제 : Ubuntu 20.04 이상 권장 2. 필수 패키지 설치 Chromium을 빌드하려면 여러 패키지가 필요합니다. 아래 명령어를 사용하여 설치합니다. sudo apt- get update sudo apt- get install build-essential git python3 python3-pip sudo apt- get install libx11- dev libxcomposite- dev libxcursor- dev libxdamage- dev libxrandr- dev libxtst- dev libxss- dev libglib2 .0 - dev sudo apt- get install libnss3- dev libasound2- dev libpulse- dev libjpeg- dev libpng- dev sudo apt- get install curl nodejs npm 3. Chromium 소스 코드 가져오기 Chromium 소스 코드를 가져오려면 depot_tools 라는 도구가 필요합니다. depot_tools 설치 : git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git export PATH=` pwd `/depot_tools: " $PATH " 이 경로를 영구적으로 PATH에 추...
자세한 내용 보기

Create fixed rounded button by Tailwind

To create a fixed, rounded button using Tailwind CSS , you can combine Tailwind's fixed utility (for positioning) with the rounded classes (for rounding the button). This is useful if you want a button that stays in a fixed position on the screen, such as at the bottom-right corner. Here’s how to do it: Example of a Fixed Rounded Button <button class="fixed bottom -4 right -4 bg-blue -500 text-white px -6 py -3 rounded-full shadow-lg"> Fixed Button </button> Explanation: fixed : Positions the button fixed relative to the viewport. It will stay in the same position even when the user scrolls. bottom-4 : Positions the button 1rem (16px) from the bottom of the screen. right-4 : Positions the button 1rem (16px) from the right side of the screen. bg-blue-500 : Sets the background color to blue. text-white : Sets the text color to white. px-6 py-3 : Adds horizontal ( px-6 ) and vertical ( py-3 ) padding for sizing the button. rounded-full : Mak...
자세한 내용 보기

To switch to a specific tag in a Git repository

To switch to a specific tag in a Git repository, you can use the git checkout or git switch command. Here's how you can do it: 1. List Available Tags First, you may want to see a list of all available tags in the repository: git tag 2. Checkout a Specific Tag Once you know the tag you want to switch to, you can use either git checkout or git switch (if you're using a newer version of Git, which recommends git switch for checking out branches). Using git checkout : git checkout <tag- name > Using git switch (recommended for newer versions of Git): git switch -- detach <tag- name > The --detach flag is necessary because tags are not branches; they are just pointers to specific commits. Using --detach makes your HEAD point to the tag without modifying any branch. 3. Verify the Checkout After switching to the tag, verify that you're on the correct commit: git status This will show the tag you're currently on (you'll see somethi...
자세한 내용 보기

AttributeError: module 'numpy' has no attribute 'float'

The error AttributeError: module 'numpy' has no attribute 'float' occurs because the numpy.float , numpy.int , and similar aliases were deprecated in NumPy 1.20 and removed in NumPy 1.24. This issue arises when a package or script uses these outdated aliases. Here’s how to resolve it: 1. Identify and Update the Affected Code If this error is in your own code, replace numpy.float with the standard Python float type or the equivalent NumPy type: Replace numpy.float with float or numpy.float64 . Replace numpy.int with int or numpy.int64 . Example: # Before x = numpy.float( 10.5 ) # After x = float( 10.5 ) # Standard Python float # or x = numpy.float64( 10.5 ) # NumPy float64 2. Update the Dependencies If the error is coming from a third-party library, check if there is a newer version of the library that supports recent NumPy versions. Upgrade it: pip install --upgrade <package_name> 3. Use an Older NumPy Version (Temporary Fix) If u...
자세한 내용 보기

Declaration of custom object or type in Node.js

In Node.js, when you want to assign one object to another that is declared by a custom type or class, you typically need to ensure compatibility between the source object's structure and the target class's expectations. Here's a breakdown: Scenario 1: Assigning Plain Objects to Class Instances If you have a custom class and want to assign properties from a plain object to an instance of that class, you can use one of the following methods: Example: class CustomType { constructor (name, age) { this .name = name; this .age = age; } } // Plain object const plainObject = { name : "John" , age : 30 }; // Assign using Object.assign() const customInstance = new CustomType(); Object .assign(customInstance, plainObject); console .log(customInstance instanceof CustomType); // true console .log(customInstance); // CustomType { name: 'John', age: 30 } Scenario 2: Using a Constructor You can modify your class to accept an object in the c...
자세한 내용 보기

Read a file in Java, 자바 파일 읽기

To convert a File object into an InputStream in Java, you can use the FileInputStream class. Here's an example: import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStream; public class FileToInputStreamExample { public static void main(String[] args) { File file = new File( "path/to/file.txt" ); try { InputStream inputStream = new FileInputStream(file); // Use the inputStream as needed... // Close the inputStream when you're done inputStream.close(); } catch (IOException e) { e.printStackTrace(); } } } In the code above, replace "path/to/file.txt" with the actual path to your file. The FileInputStream class is used to create an input stream from the file. You can then use the inputStream object to read the contents of the file or perform any other operations you need. Finally, rem...
자세한 내용 보기

ssh-copy-id in ansible

ssh-copy-id is a command-line tool used to copy your public SSH key to a remote server's authorized_keys file, allowing you to log in to the server without entering a password. Ansible is an open-source automation tool used to manage and configure multiple remote servers simultaneously. In Ansible, you can use the authorized_key module to manage the authorized keys of remote servers. This module allows you to add, remove, or replace SSH keys in a remote user's authorized_keys file. To add your public SSH key to a remote server using Ansible, you can use the authorized_key module. Here's an example playbook that adds your public SSH key to a remote server's authorized_keys file: - name: Add SSH key to authorized_keys hosts: your_server become: true tasks: - name: Install SSH key for current user authorized_key: user: your_username key: " {{ lookup('file', '/path/to/your/public/key/id_rsa.pub') }} " ...
자세한 내용 보기