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Internet Message Format  |  1993-01-28  |  2.3 KB
  1. Path: sparky!uunet!dove!cam!cam.nist.gov!crosson
  2. From: crosson@cam.nist.gov (Robert Crosson)
  3. Newsgroups: comp.unix.sys5.r3
  4. Subject: Removing active Internet connections
  5. Message-ID: <10002@fs3.cam.nist.gov>
  6. Date: 28 Jan 93 20:08:19 GMT
  7. Sender: news@cam.nist.gov
  8. Distribution: usa
  9. Organization: National Institute of Standards and Technology
  10. Lines: 35
  11.  
  12. I'm running ISC Unix 2.2 (SVR3.2) with TCP and X11R5.  I'm
  13. testing some software on another machine which establishes
  14. TCP connections to my machine, but occasionally drops the 
  15. connection without telling my machine.  If I do 'netstat' I get:
  16.  
  17. % netstat
  18. Active Internet connections
  19. Proto Recv-Q Send-Q  Local Address          Foreign Address        (state)
  20. tcp        0      0  dabby.cam.nist.g.Xserv dvx.cam.nist.gov.811   ESTABLISHED
  21. tcp        0      0  dabby.cam.nist.g.1023  dvx.cam.nist.gov.shell LAST_ACK
  22. tcp        0      0  localhost.0.0.12.Xserv localhost.0.0.12.1063  ESTABLISHED
  23. tcp        0      0  localhost.0.0.12.1063  localhost.0.0.12.Xserv ESTABLISHED
  24. tcp        0      0  localhost.0.0.12.Xserv localhost.0.0.12.1060  ESTABLISHED
  25. tcp        0      0  localhost.0.0.12.Xserv localhost.0.0.12.1059  ESTABLISHED
  26. tcp        0      0  localhost.0.0.12.1060  localhost.0.0.12.Xserv ESTABLISHED
  27. tcp        0      0  localhost.0.0.12.1059  localhost.0.0.12.Xserv ESTABLISHED
  28. tcp        0      0  localhost.0.0.12.Xserv localhost.0.0.12.1057  ESTABLISHED
  29. tcp        0      0  localhost.0.0.12.1057  localhost.0.0.12.Xserv ESTABLISHED
  30. tcp        0      0  localhost.0.0.12.Xserv localhost.0.0.12.1055  ESTABLISHED
  31. tcp        0      0  localhost.0.0.12.1055  localhost.0.0.12.Xserv ESTABLISHED
  32. tcp        0      0  localhost.0.0.12.Xserv localhost.0.0.12.1053  ESTABLISHED
  33. tcp        0      0  localhost.0.0.12.1053  localhost.0.0.12.Xserv ESTABLISHED
  34. tcp        0      0  dabby.cam.nist.g.Xserv dabby.cam.nist.g.1031  ESTABLISHED
  35. tcp        0      0  dabby.cam.nist.g.1031  dabby.cam.nist.g.Xserv ESTABLISHED
  36. % 
  37.  
  38. Does anyone know how to remove connections from this list?
  39. I want to remove the ones with dvx.cam.nist.gov.  They don't 
  40. seem to time out.  They don't seem to go away if I kill
  41. X-Windows.  I tried bringing down the Ethernet port with
  42. 'ifconfig wd0 inet down', but that doesn't seem to remove
  43. them either.  I'd appreciate any pointers.
  44.  
  45. Bob Crosson
  46. crosson@cam.nist.gov
  47.