Microsoft
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The following options in the Start Of Authority (SOA) tab, shown in Figure 5.12, control the contents of the SOA record for this zone. FIGURE 5.12 The Start Of Authority (SOA) tab of the zone Properties dialog box ■ The Serial Number field indicates which version of the SOA record the server currently holds. […]
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If DNS is already installed onto your server, you can skip this exercise. But if you have not installed DNS, let’s start by installing DNS. Installing DNS is an important part of running a network. Exercise 5.1 walks you through the installation of a DNS server. EXERCISE 5.1 Installing and Configuring the DNS Service Load […]
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Closely related to the host record is the alias record, or canonical name (CNAME) record. The syntax of an alias record is as follows: aliasoptional_TTL IN CNAME hostname Aliases are used to point more than one DNS record toward a host for which an A record already exists. For example, if the hostname of your […]
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No matter where your zone information is stored, you can rest assured that it contains a variety of DNS information. Although the DNS snap- in makes it unlikely that you’ll ever need to edit these files by hand, it’s good to know exactly what data is contained there. As stated previously, zone files consist of […]
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One major issue that you must always look at is keeping your DNS safe. Think about it: DNS is a database of computer names and IP addresses. As a hacker, if I control DNS, I can control your company. In organizations that do not support extra security like IPsec, DNS security is even more important. […]
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DNS in Microsoft Windows Server 2022 has some great advantages over many other versions of Microsoft DNS. Here are some of the improvements of DNS in Windows Server 2022 (some of these became available in previous versions of Windows Server): ■ Background zone loading ■ Support for TCP/IP version 6 (IPv6) ■ […]
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DNS is such an important part of the network that you should not just use a single DNS server. With a single DNS server, you also have a single point of failure and in fact, many domain registrars encourage the use of more than two name servers for a domain. Secondary servers or multiple primary […]