Many networks rely on a handful of fairly unglamorous protocols that nonetheless make everything work. DHCP servers deliver IP addresses and related information to most clients on many networks, easing the task of configuring networking on individual clients. DNS servers convert hostnames to IP addresses and vice versa, making Internet naming what it is. Both of these protocols are widely used on many networks, although you may not need to run a DNS server yourself. A somewhat less popular tool is NTP, which enables you to keep many systems' clocks synchronized. Running one or more of these servers locally can help ease the burden of administering a network, and Linux serves as an excellent platform for all of these tools.

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