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  1. Path: sparky!uunet!stanford.edu!agate!spool.mu.edu!olivea!decwrl!decwrl!infopiz!mccall!ipmdf-newsgate!list
  2. From: mls@slac.stanford.edu (Mike Sullenberger (415) 926-2294)
  3. Newsgroups: vmsnet.mail.pmdf
  4. Subject: WATERLOO.EDU changed to UWATERLOO.CA ???
  5. Message-ID: <01GPUYUJI1909LUY05@SCSW5.SLAC.STANFORD.EDU>
  6. Date: 12 Oct 92 19:39:29 GMT
  7. Organization: The Internet
  8. Lines: 41
  9. Return-Path: <epmdf@YMIR.CLAREMONT.EDU>
  10. Resent-Date: 12 Oct 1992 11:39:29 -0800 (PST)
  11. Resent-From: epmdf@YMIR.CLAREMONT.EDU
  12. Errors-To: epmdf@YMIR.CLAREMONT.EDU
  13. Resent-Message-ID: <01GPUYVMSHC28WVZYX@INNOSOFT.COM>
  14. X-Vms-To: IN%"info-pmdf@innosoft.com"
  15. Mime-Version: 1.0
  16. Content-Type: TEXT/PLAIN; CHARSET=US-ASCII
  17. Content-Transfer-Encoding: 7BIT
  18.  
  19.  
  20.      It seems that WATERLOO.EDU has changed to UWATERLOO.CA, and that the DNS is
  21. not completely up to date and/or consistent.  I have seen many cases of MX
  22. records pointing NOT to real hosts but another MX record.  As far as I can tell
  23. from the RFC's this is not correct. Is that true? And what does PMDF to about
  24. this situation?
  25.  
  26. Example:
  27.  
  28. $ mu nsl
  29. > set q=mx
  30. > electro.com.
  31. Non-authoritative answer:
  32. electro.com     preference = 200, mail exchanger = watcgl.waterloo.edu
  33.  
  34. Authoritative answers can be found from:
  35. ELECTRO.COM     nameserver = NS.UU.NET
  36. ELECTRO.COM     nameserver = UUCP-GW-1.PA.DEC.COM
  37. ...
  38. > set q=a
  39. > watcgl.waterloo.edu.
  40.  
  41. *** No address (A) records available for watcgl.waterloo.edu.
  42.  
  43. > set q=mx
  44. > watcgl.waterloo.edu.
  45. Non-authoritative answer:
  46. watcgl.waterloo.edu     preference = 0, mail exchanger = watserv2.uwaterloo.ca
  47.  
  48. Authoritative answers can be found from:
  49. WATERLOO.EDU    nameserver = MAYTAG.WATERLOO.EDU
  50. WATERLOO.EDU    nameserver = WATSERV1.WATERLOO.EDU
  51. ...
  52.  
  53. > set q=a
  54. > watcgl.uwterloo.ca.
  55. Non-authoritative answer:
  56. Name:    watcgl.uwaterloo.ca
  57. Address:  129.97.140.64
  58.  
  59. Mike Sullenberger
  60.