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[SSL] Auto-renewal SSL on CentOS (let's encrypt, certbot)

To renew ssl automatically, We can use crontab. Step 1. enter crontab edit mode $ sudo crontab -e Step 2. certbot auto-renewal script ## certbot 30 4 * * 0 certbot renew >> /home/log/certbot/cert_$(date +\%Y\%m\%d).log above script will be executed 4:30 AM on every Sunday. and the execution log will be stored in the "/home/log/certbot/" folder.
Software Development Engineering/Dev.Info. 2021. 2. 9. 01:46
[SSL] Let's encrypt on Cent OS (how to install)

Prerequisites - CentOS - Apache Web Server on CentOS Step 1 - Installing the Crertbot Let's Encrypt Client $ sudo yum install epel-release $ sudo yum install certbot python2-certbot-apache mod_ssl -y Step 2 - Obtaining a Certificate $ sudo letsencrypt Step 3 - set information and select domain for ssl 1) set email address Saving debug log to /var/log/letsencrypt/letsencrypt.log Plugins selected:..
Software Development Engineering/Dev.Info. 2021. 2. 9. 01:30
[PHP] Request가 HTTP인지 HTTPS인지 확인하는 방법

서버 요청이 HTTP에서 이뤄지는지 HTTPS/SSL에서 이뤄지고 있는지 확인이 필요할 때가 있다.Global Vairable인 $_SERVER를 이용해 간단히 확인할 수 있다. function isHttpsRequest() {if ( (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off') || $_SERVER['SERVER_PORT'] == 443) {return true; } return false; } HTTPS/SSL 요청은 아래 2가지 조건 중 하나라도 참인 경우로 판정한다. 1. $_SERVER['HTTPS'] 가 존재하면서, 그 값이 off가 아닌 경우 (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !=..
Software Development Engineering/PHP 2018. 7. 21. 15:42
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