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Topic 207: Domain Name Server

Perteneciente a LPIC-2

Módulos:

Tests

What is the purpose of a PTR record?

To provide name to IP resolution.
To provide IP to name resolution. (Solución)
To direct email to a specific host.
To provide additional host information.
To direct clients to another nameserver .

Using only commands included with named, what is the command, with options or parameters, to make named re-read its zone files?

rndc reload

According to the configuration below, what is the e-mail address of the administrator for this domain?

$TTL 86400
$ORIGIN certkiller.com
@    IN    SOA    mars.certkiller.com. hostmaster.certkiller.com. (
                  2005020801
                  10800
                  3600
                  604800
                  86400 );

hostmaster@certkiller.com

The mailserver is currently called fred, while the primary MX record points to mailhost.example.org. What must be done to direct example.org email towards fred?

Add an A record for mailhost to fred's IP address.
Add a CNAME record from mailhost to fred. (Solución)
Add another MX record pointing to fred's IP address.
Add a PTR record from mailhost to fred.

Sería algo como:

mailhost    IN    CNAME    fred