Ubuntu Server 18.04 – Setting Up Network Services

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In Chapter 4, Connecting to Networks, we discussed various concepts related to networking. We saw how to set the hostname, manage network interfaces, configure connections, use network manager, and more. In this chapter, we’ll revisit networking, specifically to set up the resources that will serve as the foundation of our network. The majority of this chapter will focus on setting up the DHCP and DNS servers, which are very important components of any network. In addition, we’ll also set up a Network Time Protocol (NTP) server to keep our clocks synchronized. We’ll even take a look at setting up a server to act as an internet gateway for the rest of our network.

Along the way, we’ll cover the following topics:

  • Planning your IP address scheme
  • Serving IP addresses with isc-dhcp-server
  • Setting up DNS with bind
  • Creating a secondary (slave) DNS server
  • Setting up an internet gateway
  • Keeping your clock in sync with NTP

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