Apache Error： Invalid command 'SSLPassPhraseDialog', perhaps misspelled or defined by a module not included in the server configuration Apache Error： Invalid command 'SSLPassPhraseDialog', perhaps misspelled or defined by a module not included in the server configuration 위와 같이 에러가 발생 했다면 yum install mod_ssl 설치 해주면 된다. Linux 2021.07.30