PLANET CS-2000 - Manual (Page 473)

CS-2000 UTM Content Security Gateway User’s Manual
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Select type ： A, CNAME and MX.
1.A：
To set the host name mapped to IP address.
Example 1：Set up the host name mapped to IP address：
Host Name Type IP
host1.test.net.tw A 61.11.11.12
host2.test.net.tw A 61.11.11.13
host2.test.net.tw A 211.22.22.23
Server name mapped to IP address
The”A” represents the address. To record the host name mapped to IP address. The DNS has two address
records; because of host2 has two addresses. The DNS search can be define to search a host name which
can reply more than one record. The DNS search results can be ordered by address-sorting or round –robin.
2. CNAME
Provided the domain name mapped to address, and offers external user use another (or more than one)
domain name to search. The CNAME can be define to mapped to the domain name which mapped to
address, but it’s not recommended to use another domain name which the CNAME correspond to.
Example 2：
The CNAME is used to map the Alias to its formal name.
Host Name Type Address
host23.test.net.tw A 61.11.11.14
host5.test.net.tw CNAME host23.test.net.tw
The CNAME can mapped the alias to its formal name
In other words, the CNAME of host5.test.net.tw is mapped to the formal name of host23.test.net.tw.
If we ping the host5.test.net.tw in DOS, then it will shows the IP address of 61.11.11.14.