Mastering Ubuntu Server - Second Edition

Chapter 7 – Setting Up Network Services

1. Subnetting is the process of splitting up your network into smaller networks. In our case, it allows us to have a larger number of IP addresses to assign via DHCP.
2. isc-dhcp-server
3. /var/lib/dhcp/dhcpd.leases
4. A DNS server maps names to IP addresses
5. If the primary DNS server goes down, the secondary would allow for name resolution to continue to happen
6. dig
7. NTP