What is the difference between a host alias and a canonical hostname?
The host name is the real name the server has. A canonical name is a name that the host is known by, but that the host is not actually called.
What is the canonical host name?
A canonical name (CNAME) is a properly denoted host name of computers or a network server. CNAMEs specify an alias or nickname for the canonical host name record in domain name systems. CNAME records are generally defined in RFC 1034.
What is INET address class?
InetAddress class provides methods to get the IP address of any hostname. An IP address is represented by 32-bit or 128-bit unsigned number. InetAddress can handle both IPv4 and IPv6 addresses. There are 2 types of addresses : Unicast — An identifier for a single interface.
Which method is used to return the IP address of local machine?
Method Summary
| Modifier and Type | Method and Description |
|---|---|
| String | getHostAddress() Returns the IP address string in textual presentation. |
| String | getHostName() Gets the host name for this IP address. |
| static InetAddress | getLocalHost() Returns the address of the local host. |
Why do we need Canonical Name?
A canonical name (CNAME) is a type of Domain Name System (DNS) database record that indicates that a domain name is the nickname or alias for another domain name. Also referred to as the “true name,” the CNAME is especially important when multiple services run from a single IP address.
Is Aname the same as a?
Whereas an A record only allows you to point the root or subdomain to an IP address (constellix.com → 127.1. 1.1) and a CNAME only permits you to point a subdomain to a FQDN (www.constellix.com > FQDN → 127.1. 1.1), an ANAME offers the best of both worlds—it behaves like a CNAME, but at the root level.
Do I need a CNAME for www?
There is no rule that the www. address needs to be an A record. It is very common for a web site to be a CNAME to something else.
Is www a CNAME or a record?
CNAME records are typically used to map a subdomain such as www or mail to the domain hosting that subdomain’s content. For example, a CNAME record can map the web address www.example.com to the actual web site for the domain example.com.
What is INET in network?
INET, which stands for “Internet networking,” is regarded as the premier event in the Internet industry and provides an international platform for advancing the development and implementation of Internet networks, technologies, applications, and policies.
What is the use of getLocalHost method?
Java InetAddress getLocalHost() method The getLocalHost() method of Java InetAddress class returns the instance of InetAddress containing local host name and address. In this, firstly the host name is retrieved from the system, then that name is resolved into InetAddress.