It is possible to see which repositories your instance is pointing to by checking out the "releasever" variable in /etcetera/yum.conf – by default, the Amazon Linux AMI has releasever=newest set. So in my circumstance, “a1saas.com” would be the domain title that I use to send my emails. so simply just https://vestacpinstall07289.blogs100.com/27412617/whmcs-install-no-further-a-mystery