Lab 1B-2 DNS
Interrogation with Linux
Purpose
The purpose of this lab is to query Internet domain name servers.
Tools
I used nslookup (IP_address|host_name). basic command sytax to conduct a DNS query.
Procedures
Type HOST and then the host address.Then type DIG and the host address.Type NSLOOKUP, SET TYPE = SRV, and then type server name (ex. UH.EDU)
Results
I recorded the IP address 129.7.235.44 and the domain name WWW.UH.EDU for DNS address UH.EDU.Through the dig command I ran the same address and noted the name servers NS1.uh.edu, NS2.uh.edu, Mesquite.CC.uh.edu and ncc.uhy.edu.At the end of this lab I recorded the mail servers for this DNS address smtp2.cc.uh.edu and smtp1.cc.uh.edu
Time
15 min
Reflection
These are very useful tools for network configuration, troubleshooting, and information digging about particular host.�