![]() You cannot directly filter DNS protocols while capturing if they are going to or from arbitrary ports. Show only the DNS based traffic: dns Capture Filter Display FilterĪ complete list of DNS display filter fields can be found in the display filter reference The SampleCaptures has many DNS capture files. ![]() TCP_Reassembly has to be enabled for this feature to work. As you might have guessed, this takes a DNS request or reply that has been split across multiple TCP segments and reassembles it back into one message. The DNS dissector has one preference: "Reassemble DNS messages spanning multiple TCP segments". Also add info of additional Wireshark features where appropriate, like special statistics of this protocol. XXX - Add example traffic here (as plain text or Wireshark screenshot). The well known TCP/UDP port for DNS traffic is 53. TCP/ UDP: Typically, DNS uses TCP or UDP as its transport protocol.HistoryĭNS was invented in 1982-1983 by Paul Mockapteris and Jon Postel. DNS is the system used to resolve store information about domain names including IP addresses, mail servers, and other information.
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