Shinyoung Kim rolroralra

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rolroralra / gnupg.md

Last active July 15, 2020 15:39

GnuPG

$ gpg --full-gen-key
...
Please select what kind of key you want:
   (1) RSA and RSA (default)
   (2) DSA and Elgamal
   (3) DSA (sign only)

rolroralra / OkHttpClient.md

Last active July 28, 2020 00:55

OkHttpClient

package main;

import okhttp3.*;
import org.json.JSONObject;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;

rolroralra / Nginx.md

Last active November 12, 2020 08:53

Nginx

How to Install Nginx in Online

$ curl -fsSL https://nginx.org/keys/nginx_signing.key | sudo apt-key add -
$ sudo apt-key fingerprint ABF5BD827BD9BF62
$ sudo add-apt-repository "deb https://nginx.org/packages/ubuntu/ $(lsb_release -cs) nginx"
$ sudo apt update
$ sudo apt install nginx

Nginx Basic Auth Setting

rolroralra / Network.md

Last active January 27, 2022 02:27

Network

RPC, REST, gRPC

https://livlikwav.github.io/study/grpc-and-its-history/

How to delete Network Interface

$ ip link delete vxlan.calico

rolroralra / DockerRegistry.md

Last active July 15, 2020 11:03

CI/CD on k8s

개요

여러 클라우드의 Kubernetes 서비스에서 쉽게 도커 레지스트리를 사용하기 위해 별도의 private registry 구성

Registry 서버 구성

서버정보

rolroralra / k8s.md

Last active May 13, 2021 05:00

Kubernetes

Install Kubernetes (kubeadm kubectl kubelet)

Details

$ sudo apt-get update && sudo apt-get install -y apt-transport-https gnupg2 curl

$ curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -

rolroralra / MacOS.md

Last active November 10, 2022 02:20

Mac OS

pbcopy, pbpaste

https://jojoldu.tistory.com/466

jenv

https://inma.tistory.com/157

netstat -nltp

rolroralra / Ubuntu.md

Last active February 22, 2022 11:28

Ubuntu

ntp, chronyd (Network Time Protocol)

ntp vs chronyd https://s-core.co.kr/post_os/%EC%84%9C%EB%B2%84-%EC%8B%9C%EA%B0%84-%EB%8F%99%EA%B8%B0%ED%99%94-%EB%B0%A9%EB%B2%95/

Proxy Setting

vi /etc/environment
export http_proxy=username:password@proxy-server-ip:8080
export https_proxy=username:password@proxy-server-ip:8082

rolroralra / Elasticsearch.md

Last active December 30, 2020 02:10

Elasticsearch

Install Issue

max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]

$ sudo sysctl -w vm.max_map_count=262144

Index List, Cluster Health Check, Index Search

Details

rolroralra / markdown.md

Last active September 8, 2020 10:48 — forked from ihoneymon/how-to-write-by-markdown.md

마크다운 사용법

Details

[공통] 마크다운 markdown 작성법

1. 마크다운에 관하여

1.1. 마크다운이란?

Markdown은 텍스트 기반의 마크업언어로 2004년 존그루버에 의해 만들어졌으며 쉽게 쓰고 읽을 수 있으며 HTML로 변환이 가능하다. 특수기호와 문자를 이용한 매우 간단한 구조의 문법을 사용하여 웹에서도 보다 빠르게 컨텐츠를 작성하고 보다 직관적으로 인식할 수 있다.

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