Why do CDNs use different domain names rather than subdomains? [closed]

Many online services configure CDNs (content delivery networks) to improve performance by allowing content to be served from geographically close locations. I have noticed that very often the CDN is served from a different domain name than the actual service. For example, a visit to www.amazon.com will involve pulling content from media-amazon.com. www.facebook.com gets content…

Centos 7 apache php-fpm seems to be not working

Installed and related packages on the server: php php-cli php-common php-opcache php-mcrypt php-gd php-curl php-fpm php-dom php-intl php-pecl-mongodb php-mbstring php-xml php-pear php-devel php-pecl-zip Centos 7 Apache/httpd Backstory: We are moving to a new server from the old one, cuz now we finally got some time to reconfigure everything. On the old server everything was working…

Completly disable Internet access for Internal Switch (Hyper-V) just on one VM

I followed this tutorial to create a Internal NAT Switch on host https://myitworld.azurewebsites.net/2017/02/09/configure-hyper-v-nat-virtual-switch-nat-forwarding/ Then, I created VM1 (172.16.0.10) from which I can access the rdp using the ip of the host and using port 50000. Now I created VM2 (172.16.0.11) that need to ping and access at VM1. All fine, the problem is that I…