Login
Contents x
Why am I Missing DNS Request Names?
  • 21 Mar 2022
  • 1 Minute to read
  • Contributors
  • Print
  • PDF
Contents

Why am I Missing DNS Request Names?

  • Updated on 21 Mar 2022
  • 1 Minute to read
  • Contributors
  • Print
  • PDF
Article summary

Why are some DNS request names missing?

Although the DNS protocol states that the question section must be present in the requests, not all DNS messages are name resolution requests. Some DNS servers may use message types unknown to the traffic analyzer and do not embed anything meaningful in the question section of the message. The NBNS server statistic report is such a message that makes no use of the question section.

Note: You can search for empty DNS names using the regular expression ~^$ in the name search box.

© 2024 Cisco and/or its affiliates. All rights reserved.
 
For more information about trademarks, please visit: Cisco trademarks
For more information about legal terms, please visit: Cisco legal terms
For legal information about Accedian Skylight products, please visit: Accedian legal terms and tradmarks


Was this article helpful?
What's Next
© 2024 Cisco Privacy Statement Cookies Legal
Change password!
Changing your password will log you out immediately. Use the new password to log back in.
Change profile
Success!
First name must have atleast 2 characters. Numbers and special characters are not allowed.
Last name must have atleast 1 characters. Numbers and special characters are not allowed.
Enter a valid email
Enter a valid password
Your profile has been successfully updated.
Logout