배우기를 멈추는 사람은 20세건 80세건 늙은 것이다.

### /etc/mail/sendmail.cf # load average at which we just queue messages O QueueLA=200 # load average at which we refuse connections O RefuseLA=200 systemctl restart sendmail https://faq.hostway.co.kr/index.php?mid=Linux_Mail&m=0&page=1&document_srl=8187 Linux Mail - sendmail이 작동하지 않을 경우 sendmail이 작동하지 않는 경우는 주로 2가지 입니다. 1. 시스템의 Load Average가 높아져 sendmail이 작동하지 않는 경우 sendmail 은 기본적으로 시스템의 Load A..

https://stackoverflow.com/questions/20114900/write-current-time-plus-5-minutes-in-mysql-from-php

https://github.com/apache/airflow/discussions/30268 Need advice/help - kubernetes deployment, gitSync fails to connect to gitlab self-hosted repo · apache/airflow · Discussion #3 I've been trying to switch my airflow deployment from the dags baked into the deployment image to gitSync, mounting the dags without persistence (without success I have a kubernetes secret secrets-... github.com

scutil --get HostName scutil --get LocalHostName scutil --get ComputerName sudo scutil --set HostName seunggabi sudo scutil --set LocalHostName seunggabi sudo scutil --set ComputerName seunggabi https://apple.stackexchange.com/questions/287760/set-the-hostname-computer-name-for-macos Set the hostname/computer name for macOS I have a local network at home. This network contains 5 laptops. One of ..

ingress: web: enabled: true annotations: kubernetes.io/ingress.class: "nginx" nginx.ingress.kubernetes.io/rewrite-target: / nginx.ingress.kubernetes.io/use-regex: "true" nginx.ingress.kubernetes.io/configuration-snippet: | proxy_set_header X-Forwarded-Proto https; proxy_set_header X-Forwarded-Port 443; proxy_set_header Upgrade $http_upgrade; proxy_set_header Connection "upgrade"; https://github...

$$ : 해당 프로세스의 PID값 $? : 가장 최근에 실행한 명령의 종료값 $# : 프로그램에 전달된 인수의 개수 $0 : 명령수행시 명령의 이름을 기억하는 변수값 $n : 전달된 n번째 인수(ex:$1,$2) $* : 전달된 인수들 전체를 하나의 문자열로 표시함 $@ : 전달된 인수들 전체를 문자열의 목록으로 표시함 $! : 마지막으로 실행된 백그라운드 프로세스 pid값 0 : Successful completion of the command 1 : General unknown error 2 : Misuse of shell command 126 : The command can't execute 127 : Command not found 128 : Invalid exit argument 128+x : ..

jobs: build: runs-on: ubuntu-latest env: DIR: test steps: - uses: actions/checkout@v3 - uses: actions/setup-python@v4 with: python-version: '3.11' - run: ./sh/install.sh working-directory: ${{ env.DIR }} - id: app run: | python3 app.py status=$? echo "status=${status}" >> "$GITHUB_OUTPUT" working-directory: ${{ env.DIR }} - run: exit ${{ steps.app.outputs.status }} https://stackoverflow.com/ques..

import subprocess import time running_status = { "my_program": None } def run(): running_status['my_program'] = subprocess.Popen(["python", "test.py"]) def kill_popen(process_name): # 좀비 프로세스를 제거하기 위해, popen 객체를 통해 return 값을 받습니다. s = running_status[process_name] s.terminate() time.sleep(0.5) s.poll() run() kill_popen('my_program') https://velog.io/@hamster/TIL-Python-Popen-%ED%94%84%EB%A1%9C%EC..

ps -ef | grep defunct | awk '{print $3}' | xargs kill -9 http://www.digistory.co.kr/?p=482 defunct(좀비) process 죽이기 top으로 프로세스 현황을 보면 가끔 좀비 프로세스가 있는 경우가 있다. (아래 예시에서는 두번째 줄 마지막에 1 zombie) [root@jmnote ~]# top top – 22:01:31 up 97 days, 17:08, 1 user, load average: 0.00, 0.00, 0.00 Task www.digistory.co.kr

crontab -l | { cat; echo "0 0 0 0 0 some entry"; } | crontab - https://stackoverflow.com/questions/878600/how-to-create-a-cron-job-using-bash-automatically-without-the-interactive-editor How to create a cron job using Bash automatically without the interactive editor? Does crontab have an argument for creating cron jobs without using the editor (crontab -e)? If so, what would be the code to crea..