Domain Name System Query Wireshark

Expand ethernet ii to view ethernet details.

Domain name system query wireshark. As shown in figures 2 19 and 2 20 in the textbook much can go on. In this example we have provided the option type ns and the domain mit edu. In words the query is saying please send me the host names of the authoritative dns for mit edu.

Field name description type versions. The well known tcp udp. Observe the packet details in the middle wireshark packet details pane.

You should find a user account name for theresa johnson in traffic between the domain controller at 172 16 8 8 and the windows client at 172 16 8 201 as shown in figure 14. Finding the windows user account name. Dns domain name system dns is a very popular and well known protocol dns server is most critical service component of internet without dns service internet become paralysis.

Dns v7 0 supplement to computer networking. A top down approach. This causes nslookup to send a query for a type ns record to the default local dns server.

Notice that it is an ethernet ii internet protocol version 4 user datagram protocol domain name system query frame. Observe the destination and source fields. Internet organization in every country are managing thousands of name servers around the world operating under 13 dns root zone servers are called authoritative name servers.

Domain name system dns dns is the system used to resolve store information about domain names including ip addresses mail servers and other information. Field name description type versions. Scroll down to the last frames in the column display.