Domain Name Service Cheat Sheet

Domain Name Service

First look for domain name to IP mapping is done through Host file and if not exist it look up in server domain cache. If the mapping is not available in host and aswell as in DNS cache it will eventually look up into DNS server.

1. Host- This is host file C:\Windows\System32\drivers\etc\hosts
2. DNS Cache
3. DNS Server

Sr.No	DNS Attribute	Remark
1	Ipconfig/flushdns	Flush DNS Cache
2	Ipconfig/displaydns	Display DNS Details
3	Forward DNS Lookup	Internet domain name to find an IP address
4	Reverse DNS Lookup	Internet IP address to find a domain name.
5	Root Hint
6	Authorative DNS Response	Contains Address reference in Enterprise DNS server
7	Non Authorative DNS Response	Available either in non enterprise root dns server
8	Cache DNS Path	C:\Windows\System32\dns\cache.DNS
9	Wireshark	To intercept all network protocal
10	Addr ARPA-.in-addr.arpa (inverse address)	Translate IP address to a hostname
11	PTR-record Reverse DNS	Translaate Hostnmae to IP address
12	Cname - Canonical Name	The ALIAS record maps a name to another name, but in turns it can coexist with other records on that name
13	Load balancing Netmasking Ordering	Identify default gateway Ip and subnet of incoming request and based on zone/Subnet it allows the access to server.
14	Round Robin	Based on availability and if server is not busy it will access and route request to the given server
15	FQDN	Fully Qualified Domain Name
16	DNS Resolution