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[server/apache] apache let's encrypt 방화벽 오류 해결방법 apache 서버에 let`s encrypt 를 적용하려고 certbot 를 실행하다보면 아래와 같은 firewall 문제가 발생되는 경우가 있습니다. Timeout during connect (likely firewall problem) To fix these errors, please make sure that your domain name was entered correctly and the DNS A/AAAA record(s) for that domain contain(s) the right IP address. Additionally, please check that your computer has a pub..