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.
- Host- This is host file C:\Windows\System32\drivers\etc\hosts
- DNS Cache
- 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
|
|
