Hostname

Abstract

---

• Human-readable names given to the Host
• Domain Name, Canonical Hostname (CNAME) and Alias Hostname are all considered as hostname

Limitation

• Doesn’t contain enough information to locate the Host on the Internet
• Difficult to be processed by Routers

Solution

Create a mapping between hostname and IP Address using DNS. IP Address is capable of solving the limitation of hostname but not human-readable which is mitigated by DNS

Domain Name

• Examples are notes.yxy.ninja and google.com etc

Domain Name Transfer

Transferring from one Domain Registrar to another. The general steps:

1. Disable DNSSEC
2. Unlock Domain
3. Request an authorization code, also known as EPP Code
4. Initiate transfer to the new Registrar with the EPP Code
5. The old registrar sends a transfer confirmation email, confirm it

Refer to Cloudflare Docs for more details

Domain Registrar

• The platform between the domain owner and Top-Level Domain DNS Server, for example Cloudflare Registrar

EPP Code

• Alpha-numeric code required to transfer domain from one registrar to another registrar

Canonical Hostname (CNAME)

• A less readable Hostname
• For example, my blog CNAME isd29nyp1p0lllzw.cloudfront.net

Alias Hostname

• A more readable Hostname, usually aliasing to Canonical Hostname (CNAME) or IP Address