G+_James Coleman Posted March 12, 2014 Share Posted March 12, 2014 Tip for DNS. If you want to query DNS responses, rather than using ping... You should use the command dig in unix/linux systems. Example: dig google.com ;; ANSWER SECTION: google.com. 274 IN A 74.125.21.102 google.com. 274 IN A 74.125.21.113 google.com. 274 IN A 74.125.21.101 google.com. 274 IN A 74.125.21.100 google.com. 274 IN A 74.125.21.139 google.com. 274 IN A 74.125.21.138 As you can see, Google has many IP Addresses they return and your computer chooses one of them to talk to. You would not know that Google has all of those IP Addresses if you just used ping. You can also query for AAAA, MX, TXT, and other record types to see what the response is. A = IPv4 Address, AAAA = IPv6 Address, MX = Mail eXchange record, and TXT = Text record. You can Google for "DNS Records" to find out more about the different record types. Maybe Know How can point this out in the next episode to give people more information about DNS. Link to comment Share on other sites More sharing options...
G+_James Coleman Posted March 12, 2014 Author Share Posted March 12, 2014 Lee Ball Thank you for that command, I so hate how windows is as I couldn't figure out how to get help on that command... To get another record type, such as mx, it's nslookup -type=mx google.com Had to google for help, when on unix/linux it's just -h, --help, or manpages, found out later on nslookup has an interactive mode which you can type help in to get help. Link to comment Share on other sites More sharing options...
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