Blinded by something

Johnny Fribert Lauridsen jlaurids at cisco.com
Thu Jul 13 16:56:39 UTC 2000


Thanks,
And NO, I did not do any editing.  It was the real thing.
I will try your suggestion,
Thanks,
/Johnny

At 10:46 13/07/2000 -0600, M.Ashcraft at epixtech.com wrote:

>You are using a CNAME on the right hand side of an MX record.  you must use
>the real name associated with an A record.
>
>You have two choices.
>Change
>mail1.teliamobile.dk.   86400   CNAME   ns.teliamobile.dk.
>mail.teliamobile.dk.   86400   CNAME   ns1.teliamobile.dk.
>(I don't see this second line but I think you have been editing)
>To
>mail.teliamobile.dk.   86400   A   62.44.158.10
>mail1.teliamobile.dk.     86400   A       62.44.158.11
>
>OR
>
>Change
>teliamobile.dk.         86400   MX      40 mail.teliamobile.dk.
>teliamobile.dk.         86400   MX      30 mail1.teliamobile.dk.
>To
>teliamobile.dk.         86400   MX      40 ns.teliamobile.dk.
>teliamobile.dk.         86400   MX      30 ns1.teliamobile.dk.
>
>
>Mike
>
>--
>Mike Ashcraft, Sr. Network Engineer
>epixtech, Inc.
>M.Ashcraft at epixtech.com
>
>
>
>                                                                                                                      
>                     Johnny Fribert                                                                                   
>                     Lauridsen              To:     bind-users at isc.org                                                
>                     <jlaurids at cisco        cc:                                                                       
>                     .com>                  Subject:     Blinded by something                                         
>                     Sent by:                                                                                         
>                     bind-users-boun                                                                                  
>                     ce at isc.org                                                                                       
>                                                                                                                      
>                                                                                                                      
>                     07/13/00 10:32                                                                                   
>                     AM                                                                                               
>                                                                                                                      
>                                                                                                                      
>
>
>
>
>
>Hi,
>I am getting blind (meta-speaking), so help me understand this:
>The problem is this:
>!!! teliamobile.dk MX host mail1.teliamobile.dk is not canonical
>
>Here you get it all:  Note that I am not using mydomain.com, this is the
>real thing.
>We just started this so we will soon be hiding the 10. names, but for now,
>we do not like the warning about
>the 'not canonical'.  I re-created the scenario on my own system, and if I
>left out the trailing
>domain on mail1 on the CNAME statement, I did not have this warning.
>B.t.w. it does not take long for hackers to track newly created and
>registered zones.  We have loads
>of tries in our logs.  Why?  Is it kids that have nothing else to do than
>try to infiltrate and make harm
>on businessees?
>Advise on the 'non canonical warning', pls.?  And what else you might
>suggest.
>Thanks,
>/Johnny
>
>teliamobile.dk.         86400   SOA     ns.teliamobile.dk.
>hostmaster.teliamobile.dk. (
>                          41      ;serial (version)
>                          10800   ;refresh period (3 hours)
>                          3600    ;retry interval (1 hour)
>                          604800  ;expire time (1 week)
>                          86400   ;default ttl (1 day)
>                          )
>ns.teliamobile.dk.      86400   A       62.44.158.10
>ns1.teliamobile.dk.     86400   A       62.44.158.11
>ntp.teliamobile.dk.     86400   CNAME   ns.teliamobile.dk.
>www.teliamobile.dk.     86400   CNAME   speedy-fe1-pilot.teliamobile.dk.
>cash.teliamobile.dk.    86400   CNAME   care02.teliamobile.dk.
>mail.speedytomato.dk.teliamobile.dk.    86400   CNAME
>speedy-fe1-pilot.teliamobile.dk.
>ntp1.teliamobile.dk.    86400   CNAME   ns1.teliamobile.dk.
>mail1.teliamobile.dk.   86400   CNAME   ns.teliamobile.dk.
>care01.teliamobile.dk.  86400   A       10.200.1.40
>care02.teliamobile.dk.  86400   A       62.44.158.40
>care03.teliamobile.dk.  86400   A       62.44.158.41
>gsw-a1.teliamobile.dk.  86400   A       62.44.159.39
>gsw-a2.teliamobile.dk.  86400   A       62.44.159.38
>spider.teliamobile.dk.  86400   A       62.44.159.61
>wap-gw.teliamobile.dk.  86400   CNAME   wapgateway.teliamobile.dk.
>FK12392.teliamobile.dk. 20      A       62.44.158.235
>FK12392.teliamobile.dk. 20      TXT     "01:00:50:04:e8:6c:4b"
>fk94200.teliamobile.dk. 20      A       62.44.158.231
>fk94200.teliamobile.dk. 20      TXT     "01:00:06:29:92:64:bd"
>PC-4596.teliamobile.dk. 20      A       62.44.158.233
>PC-4596.teliamobile.dk. 1200    TXT     "01:00:06:29:b5:e4:fd"
>PC-4844.teliamobile.dk. 20      A       62.44.158.236
>PC-4844.teliamobile.dk. 20      TXT     "01:00:50:da:d9:e3:4f"
>tmnt015.teliamobile.dk. 86400   A       62.44.158.25
>dhcpserv.teliamobile.dk.        86400   CNAME   ns.teliamobile.dk.
>jwi-wkst.teliamobile.dk.        86400   A       62.44.159.55
>kja-wkst.teliamobile.dk.        86400   A       62.44.159.56
>loopback.teliamobile.dk.        86400   CNAME   localhost.teliamobile.dk.
>mgt-test.teliamobile.dk.        86400   A       62.44.159.62
>sherlock.teliamobile.dk.        86400   A       62.44.159.60
>dhcpserv1.teliamobile.dk.       86400   CNAME   ns1.teliamobile.dk.
>gsw-core1.teliamobile.dk.       86400   A       62.44.159.36
>gsw-core2.teliamobile.dk.       86400   A       62.44.159.37
>keykeeper.teliamobile.dk.       86400   A       62.44.159.59
>localhost.teliamobile.dk.       86400   A       127.0.0.1
>PC-3021NT.teliamobile.dk.       20      TXT     "01:00:60:94:1f:13:22"
>PC-3021NT.teliamobile.dk.       20      A       62.44.158.234
>wap-radius.teliamobile.dk.      86400   CNAME   tmnt015.teliamobile.dk.
>wapgateway.teliamobile.dk.      86400   A       62.44.158.26
>cash-reload.teliamobile.dk.     86400   CNAME   care02.teliamobile.dk.
>teliamobile.dk.         86400   MX      40 mail.teliamobile.dk.
>teliamobile.dk.         86400   MX      30 mail1.teliamobile.dk.
>   !!! teliamobile.dk MX host mail1.teliamobile.dk is not canonical
>teliamobile.dk.         86400   NS      ns1.teliamobile.dk.
>teliamobile.dk.         86400   NS      ns.teliamobile.dk.
>wap-gateway.teliamobile.dk.     86400   CNAME   wapgateway.teliamobile.dk.
>speedy-be1-pilot.teliamobile.dk.        86400   A       10.200.1.20
>speedy-fe1-pilot.teliamobile.dk.        86400   A       62.44.158.20
>rou-fwa-acc1-bvi999.teliamobile.dk.     86400   A       62.44.159.33
>teliamobile.dk.         86400   SOA     ns.teliamobile.dk.
>hostmaster.teliamobile.dk. (
>                          41      ;serial (version)
>                          10800   ;refresh period (3 hours)
>                          3600    ;retry interval (1 hour)
>                          604800  ;expire time (1 week)
>                          86400   ;default ttl (1 day)
>                          )
>
>
>Explanations on a few of the RR's (Resource Records). Those not listed can
>be found in the RFC's, but you probably don't need them if you don't know
>which are what.
>
>
>    MX    = Mail eXchanger - with preference. The lowest number handles the
>mail.
>    A     = Address (IP-number).
>    AAAA  = Address (IP-number, v6).
>    CNAME = Canonical name - i.e. an alias.
>    NS    = Name Server - what servers are authoritative.
>    HINFO = Host Information.
>    WKS   = Well Known Services.
>
>
>
>The numbers listed before each RR is the time left for that record in the
>cache. If the nameserver is authoritative on that specific record, this
>number will not
>decrease as time goes by.
>
>Zonetransfer (AXFR)
>Please note that not all ISP's allow zonetransfer and that zonetransfer of
>a domain/reverse domain only makes sence if a zone HAS been defined. You
>can
>ONLY zonetransfer a zone from one of the authoritative nameservers.
>
>
>
>




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