On Amazon Linux, when restarting Apache server, i get error
[root@ip-172-16-20-44 conf.d]# service httpd restart
Stopping httpd: [ OK ]
Starting httpd: AH00526: Syntax error on line 5 of /etc/httpd/conf.d/sendy.mayflower.com.my-le-ssl.conf:
Invalid command 'SSLEngine', perhaps misspelled or defined by a module not included in the server configuration
[FAILED]
[root@ip-172-16-20-44 conf.d]#
This is because SSL module was not installed on the server. To fix, run
sudo yum install -y mod24_ssl
See ssl