Firewall Wizards mailing list archives
Re: TCP port 7 traffic from DoubleClick
From: Joseph S D Yao <jsdy () cospo osis gov>
Date: Wed, 7 Jul 1999 12:20:35 -0400 (EDT)
Quoting a quoted letter a third time:
In the course of determining the best suited POP, Global Dispatch preforms a latency measurement. This latency measurement is done by making a connection to the client DNS server on TCP port 7 and then dropping the connection.
Can anybody believe such arrant nonsense? And especially a person calling himself ... what was it ...
"The Ultimate Enterprise Security Experts"
??? Of course, this "technical" explanation was probably quoted by help desk people from sales brochures. Everyone who hangs their DNS servers off port 7 for pre-forming latency measurements, raise your hands. No, the ones attached to your arms. -- Joe Yao jsdy () cospo osis gov - Joseph S. D. Yao COSPO/OSIS Computer Support EMT-B ----------------------------------------------------------------------- This message is not an official statement of COSPO policies.
Current thread:
- TCP port 7 traffic from DoubleClick Greg Nowicki (Jul 05)
- Re: TCP port 7 traffic from DoubleClick Chris Brenton (Jul 05)
- Re: TCP port 7 traffic from DoubleClick C. Harald Koch (Jul 06)
- Re: TCP port 7 traffic from DoubleClick George Ross (Jul 07)
- Re: TCP port 7 traffic from DoubleClick Joseph S D Yao (Jul 08)
- Re: TCP port 7 traffic from DoubleClick dreamwvr (Jul 12)
- Re: TCP port 7 traffic from DoubleClick David Lang (Jul 08)
- Re: TCP port 7 traffic from DoubleClick C. Harald Koch (Jul 06)
- Re: TCP port 7 traffic from DoubleClick James Burns (Jul 07)
- Re: TCP port 7 traffic from DoubleClick Chris Brenton (Jul 05)
- Re: TCP port 7 traffic from DoubleClick C. Harald Koch (Jul 06)
- Re: TCP port 7 traffic from DoubleClick Joseph S D Yao (Jul 12)
- <Possible follow-ups>
- Re: TCP port 7 traffic from DoubleClick Vern Paxson (Jul 06)
- Re: TCP port 7 traffic from DoubleClick Neil Ratzlaff (Jul 09)
- Re: TCP port 7 traffic from DoubleClick Albert Hopkins (Jul 12)
- Re: TCP port 7 traffic from DoubleClick Neil Ratzlaff (Jul 09)
- Re: TCP port 7 traffic from DoubleClick Vern Paxson (Jul 07)
- RE: TCP port 7 traffic from DoubleClick Mason Begley (Jul 08)
- Re: TCP port 7 traffic from DoubleClick ark (Jul 12)
- Re: TCP port 7 traffic from DoubleClick R. DuFresne (Jul 12)
- Re: TCP port 7 traffic from DoubleClick Timothy K. Ewing (Jul 13)
- Re: TCP port 7 traffic from DoubleClick David Lang (Jul 14)