Learn DNS Domain Name Service
Familiar with the use nslookup to find DNS domain name registered on the server, record the results of the inquiry several times,
And ip server .
1. The part of the name of a host at a subdomain - IP address correspondence, such as
flame.nsrl.ustc.edu.cn—202.38.77.223；
2. By IP lookup host name address, namely: reverse lookup, record your results;
3. specify 202.38.75.11 as the DNS server, repeated 2 , 3 ;
4. View the current query options (the SET All )
The query mail exchange record the MX (eg mail.ustc.edu.cn )
6. query a domain name server (such as ustc.edu.cn domain name server)
nslookup command
The experiment requires only to complete the operation in the linux.
Nslookup input in the terminal, to enter the interactive mode.
O part of the host under a subdomain name -IP address correspondence
Direct input flame.nsrl.ustc.edu.cn enter, you can see the analysis result returned by the server.
o Find the host name by IP address
Enter 202.38.75.11 input, i.e., the reverse can see the corresponding analysis results. (Note: Some addresses can not reverse solution
Analysis)
o specify 202.38.75.11 as the DNS server, repeated 3
Lserver 202.38.75.11 Enter command input is set to 202.38.75.11 dns server, then repeat 1.
o view the current query options
set all o Query-mail exchange record MX
set type=MX
o query a domain name server
set type=ns
O IPv6 address corresponding to the query field (address query bbs6.ustc.edu.cn)
set type=AAAA
IPV6 query the address, if you want to query IPV4 address, type the command set type = A