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- From: mls@SLAC.STANFORD.EDU (Mike Sullenberger 926-2294)
- Newsgroups: vmsnet.networks.tcp-ip.multinet
- Subject: Problem with NETFIND program.
- Message-ID: <20203A3426AUG92203601@TGV.COM>
- Date: 26 Aug 92 20:36:01 GMT
- Organization: The INFO-MULTINET Community
- Lines: 169
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- X-RFC822-From: "Mike Sullenberger (415) 926-2294" <mls@SLAC.STANFORD.EDU>
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-
- Are people aware of the NETFIND program and the problems that it can cause?
-
- I am sending this to these lists because it took me well over a week to track
- down why people all over the world were suddenly sending mail directly to one of
- my nameservers for people that have never been at my site. I thought maybe
- others have seen this problem and are wondering what is going on.
-
- Note: The SMTP that is running on SERV01.SLAC.STANFORD.EDU is the MultiNet V3.0D
- SMTP straight off of the tape.
-
- Following is the copy of correspondance with a writer of NETFIND.
-
- Mike Sullenberger
- SLAC Postmaster
-
- --------------------------------------------------------------------------------
- Date: Tue, 25 Aug 1992 19:12 PDT
- From: "Mike Sullenberger (415) 926-2294" <mls@slac.stanford.edu>
- Subject: BIG complaint about NETFIND
- To: schwartz@cs.colorado.edu
-
- I am the Stanford Linear Accelerator Center Postmaster and I have a very large
- complaint about your NETFIND program. For the last week I have been receiving
- mail for people that are not at SLAC.STANFORD.EDU routed to my Domain Nameserver
- node SERV01. This particular node does NOT have user accounts, and provides NO
- services other then Domain Nameservice. I have learned that people are using
- E-mail address that point to my Nameserver because NETFIND erroneously claims
- that mail for anybody in a search of STANFORD EDU gets mail forwarded to
- <user>@SERV01.SLAC.STANFORD.EDU.
-
- Following is an example of using GOPHER to gain access to NETFIND and then using
- NETFIND to search for a person that I think might be at STANFORD EDU. As you
- can see a normal search using NETFIND produces the completely incorrect
- information.
-
- MAIL IS FORWARDED TO foobar@serv01.slac.stanford.edu
-
- This message implies that I can send E-mail to a person FOOBAR at
- FOOBAR@SERV01.SLAC.STANFORD.EDU and that person will receive the mail. I do not
- know what search criteria NETFIND uses, but DOMAIN Nameservers have NOTHING to
- do with E-MAIL. I am sure that a lot of other Postmasters and Nameserver
- Managers are not going to be pleased with this situation.
-
- Mike Sullenberger
- SLAC Postmaster
-
-
- ------- Example ------
-
- Internet Gopher v0.6 Copyright 1991 Univ. of Minnesota
- Root Directory
-
- 1. CAP.DIR/
- 2. FTP Searches/
- 3. Fun & Games/
- 4. Gopher Root 1/
- 5. Information About Gopher/
- 6. Libraries/
- 7. Mailing Lists/
- 8. News/
- 9. OTHER.DIR/
- 10. Other Gopher and Information Servers/
- --> 11. Phone Books/
- 12. UofM Campus Information/
-
- Internet Gopher v0.6 Copyright 1991 Univ. of Minnesota
- Phone Books
-
- 1. University of Arizona <CSO>
- --> 2. Internet-wide e-mail address searches/
- 3. WHOIS Searches/
-
- Internet Gopher v0.6 Copyright 1991 Univ. of Minnesota
- Internet-wide e-mail address searches
-
- --> 1. Netfind search for Internet e-mail addresses <TEL>
- 2. Netfind search for Internet e-mail addresses overview.
-
- Warning!!!!!, you are about to leave the Internet
- Gopher program and connect to another host.
- If you get stuck, press the control key and the ^
- key, and then type q or c.
-
-
- Now connecting to mudhoney.micro.umn.edu
- Use the account name "netfind" to log in
-
- Press return to connect:
-
- Trying... Connected to MUDHONEY.MICRO.UMN.EDU, a SUN running UNIX.
-
- SunOS UNIX (mudhoney)
-
- login: netfind
-
- Welcome to the University of Minnesota Netfind server.
-
- Search/Quit/Help [s/q/h]: s
- Enter person and keys (blank to exit) --> foobar stanford edu
-
- There are too many domains in the list.
- Please select at most 3 of the following:
- 0. cs.stanford.edu (computer science department, stanford university, c)
- 1. daedalus.stanford.edu (stanford university, california)
- 2. leland.stanford.edu (dsg, stanford university, california)
- 3. neon.stanford.edu (computer science department, stanford university,)
- 4. portia.stanford.edu (stanford university, california)
- 5. slac.stanford.edu (stanford university, california)
- 6. stanford.edu (stanford university, california)
- Enter selection (e.g., 3 1 2) --> 4 5 6
- NOTE: The domain 'portia.stanford.edu' does not run its own name servers.
- Often this indicates the domain is not on the Internet, in which
- case Netfind cannot locate people there. (Continuing search.)
-
- MAIL IS FORWARDED TO foobar@serv01.slac.stanford.edu
- ------
-
- Search of domains completed. Proceeding to search of hosts.
- ------
- Search/Quit/Help [s/q/h]: q
-
- --------------------------------------------------------------------------------
-
- Date: Tue, 25 Aug 1992 21:43:31 -0600
- From: Mike Schwartz <schwartz@latour.cs.colorado.edu>
- Subject: RE: BIG complaint about NETFINDMike,
- To: mls@SLAC.STANFORD.EDU
-
- I'm sorry this has caused you trouble. However, the problem is with your
- mailer, not Netfind. Your SMTP server answers EXPN requests
- incorrectly. Try this:
-
- {latour:~ 981} telnet serv01.slac.stanford.edu 25
- Trying 134.79.16.9 ...
- Connected to serv01.slac.stanford.edu.
- Escape character is '^]'.
- 220 SERV01.SLAC.STANFORD.EDU TGV/MultiNet SMTP service ready.
- EXPN anyjunk
- 250 <anyjunk>
-
- ------------------------------------------
-
- I would guess this is true for one of two reasons:
- 1. Your configuration is incorrect
- 2. Your configuration is set up to hide information, to preserve
- privacy (I have seen this with several commercial Internet
- service providers, for example)
-
- If (2), I suggest you change your configuration so that it simply
- refuses to answer these queries. As it is, your configuration doesn't
- conform to the RFC 821 specification.
- - Mike
-
- --------------------------------------------------------------------------------
-
- Date: Wed, 26 Aug 1992 10:13 PDT
- From: "Mike Sullenberger (415) 926-2294" <mls@slac.stanford.edu>
- Subject: Re: BIG complaint about NETFIND
- To: schwartz@latour.cs.colorado.edu
-
- Your comments are noted, but I still feel that NETFIND is giving back misleading
- information. Being Postmaster I have used SMTP EXPN to try to track down mail
- problems and I have found it to be highly unreliable there are a lot of nodes
- out there that answer SMTP EXPN xxxxxx with 250 <xxxxxx>, and therefore I don't
- think that you should rely on it. Just because a node is a nameserver, does NOT
- mean that you should be doing SMTP queries to it. You could at least check the
- nameservice for a particular node to see if it has a WKS entry for SMTP service.
- You might also look for MX records, SERV01.SLAC.STANFORD.EDU never receives SMTP
- mail directly.
-