Security Incidents mailing list archives

RE: Why would my machine do this?


From: Jose Nazario <jose () biocserver BIOC cwru edu>
Date: Fri, 8 Feb 2002 12:29:32 -0500 (EST)

On Thu, 7 Feb 2002, Bill Royds wrote:

Is one of the machines a SGI Irix machine. SGI uses port 1 for service
multiplexing and this may be a communication from the service
multiplexor. It can be pretty chatty with it.

1/UDP is not used by those . 1/TCP is TCPmux (RFC 1078) to multiplex
services. UDP doesn't use that TCPmux service for the same purposes.

you are right in that several SGI specific tools use TCPmux (1/TCP). but
they're TCP only.

____________________________
jose nazario                                                 jose () cwru edu
                     PGP: 89 B0 81 DA 5B FD 7E 00  99 C3 B2 CD 48 A0 07 80
                                       PGP key ID 0xFD37F4E5 (pgp.mit.edu)



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