Where I work we have a very old Linux machine that is doing our DNS/DHCP and other network services. That machine is our Default Gateway and all internet connections go through this computer somehow.
I'm a programmer not a network guy and I'm trying to gather information in order to replace that machine but I don't know what to call the service that 'provides a bridge to the Internet'.
My plan was to deploy a Synology server to handle our DNS/DHCP/Mail etc. We're not a big company so I think that would be enough. But I don't know if I can provide the same bridge to the internet because I don't know what its called.