Red Hat Enterprise Linux 3: System Administration Guide
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# 28.3. Adding a Slave Zone

To add a slave zone (also known as a secondary master), click the New button and select Slave Zone. Enter the domain name for the slave zone in the Domain name text area.

A new window appears, as shown in Figure 28-4, with the following options:

- Name — The domain name that was entered in the previous window.

- Masters List — The nameservers from which the slave zone retrieves its data. Each value must be a valid IP address. Only numbers and periods (.) can be entered in the text area.

- File Name — File name of the DNS database file in `/var/named`.

Figure 28-4. Adding a Slave Zone

After configuring the slave zone, click OK to return to the main window as shown in Figure 28-1. Click Save to write the `/etc/named.conf` configuration file and have the daemon reload the configuration files.

The configuration creates an entry similar to the following in `/etc/named.conf`:

    zone "slave.example.com" {
            type slave;
            file "slave.example.com.zone";
            masters {
                     1.2.3.4;
                    };
    };

The configuration file `/var/named/slave.example.com.zone` is created by the `named` service when it downloads the zone data from the master server(s).

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