Security Basics mailing list archives
RE: TCP DNS requests
From: "Daniel Miessler" <danielrm26 () hotmail com>
Date: Thu, 31 Oct 2002 12:20:28 -0500
Zone Transfers use TCP instead of UDP on port 53. That is most likely what you are seeing. --Daniel
We are reporting TCP based DNS requests to one of our DNS servers
coming
from internal, client IP addresses. My manager would like to block
the TCP
packets. What or why would their be random TCP packets? We monitored several clients and it appears it only needs UDP.
Current thread:
- TCP DNS requests Carl R Diliberto (Oct 30)
- Re: TCP DNS requests Douglas K. Fischer (Oct 31)
- RE: TCP DNS requests Daniel Miessler (Oct 31)
- RE: TCP DNS requests Larry R. (Oct 31)
- <Possible follow-ups>
- Re: TCP DNS requests Martin Wasson (Oct 31)
- RE: TCP DNS requests Raghu Chinthoju (Oct 31)
- RE: TCP DNS requests Meidling, Keith, CTR, OSD-C3I (Oct 31)
- RE: TCP DNS requests Mike Powell (Oct 31)