Help configuring Dell Server

Can I get some help deploy my server online. I have Ubuntu and centos installed but still having some problems. I keep getting; “server IP address could not be found. DNS_PROBE_FINISHED_NXDOMAIN.” Could use, no, need help. thanks Sent from Mail

Help needed configure a server

I am a newbie trying to configure and put a home server online as starter project. with some help. Specifically, dns server specifics, port forwarding, recommended hardware and software, such as router, dns server, security, etc. I would greatly appreciate any help. Thanks Peter Sent from Mai