RE: [cobalt-users] Cube3 DNS problem

["Brian R. Poppenwimer" <popper@xxxxxxxxxx>]

->------Original Message-----
->-Hello,
->-I have been struggling with DNS problems for the past few 
->-weeks. I have a
->-Qube3 (dns1.mep.ch) and a Qube2 (dns2.mep.ch).
->-
->-Most of the config seems to be working, we receive e-mails 
->-and can serve
->-pages to the internet. I am working through DNS & BIND from 
->-O'Reilly but it
->-does not seem to help my little problem. (btw this book 
->-doesn't seem to
->-address the issues of virtual hosts)

Good book, I'm in the process of reading that one also, learning as I
go.

->-
->-I can ping www.mep.ch and mail.mep.ch but I cannot ping mep.ch
->-

C:\>ping mep.ch

Pinging mep.ch [194.148.6.210] with 32 bytes of data:

Reply from 194.148.6.210: bytes=32 time=210ms TTL=239
Reply from 194.148.6.210: bytes=32 time=100ms TTL=239
Reply from 194.148.6.210: bytes=32 time=120ms TTL=239
Reply from 194.148.6.210: bytes=32 time=110ms TTL=239

Ping statistics for 194.148.6.210:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 100ms, Maximum =  210ms, Average =  135ms

->-These were created in the Qube3 GUI as this:
->-
->-chraq001 . mep.ch              A     194.148.6.210
->-194.148.6.210/255.255.255.0    PTR   chraq001 . mep.ch
->-steve . mep.ch                 A     194.148.6.210
->-194.148.6.210/255.255.255.0    PTR   steve . mep.ch
->-mep.ch                         A     194.148.6.210
->-194.148.6.210/255.255.255.0    PTR   mep.ch
->-dns2 . mep.ch                  A     194.148.6.254
->-194.148.6.254/255.255.255.0    PTR   dns2 . mep.ch
->-dns1 . mep.ch                  A     194.148.6.242
->-194.148.6.242/255.255.255.0    PTR   dns1 . mep.ch
->-www . mep.ch                   A     194.148.6.210
->-194.148.6.210/255.255.255.0    PTR   www . mep.ch
->-mep.ch                         MX    mail.mep.ch
->-194.148.6.253/255.255.255.0    PTR   mep.ch
->-mail . mep.ch                  A     194.148.6.253
->-194.148.6.253/255.255.255.0    PTR   mail . mep.ch
->-
->-
->-This results in two real problems:
->-  internally dns1 cannot send e-mail to cobalt@xxxxxx
->-  and externally if I try to open web page mep.ch I get host 
->-not found and
->-not www.mep.ch

I just opened straight mep.ch.  It worked fine.  One thing, and since
I'm a beginner, someone will probably have to correct me, but I had read
in this group somewhere that you can only have one ptr record for an
address.  This is the reverse address lookup.  This record returns the
name of a machine when a number is supplied, so if you have all those
ptr records, how will it choose what name to give back to a program
asking for it, it searches its list and probably gets confused because
there is more than one.  Just something to look into.  I only have one
PTR (sorry 2, have two actual machines) record in my DNS configure, and
that is for the main host name of the machine, the rest are just
straight A records.

Hope this helps some what!

->-
->-Sorry for a long mail, I'm trying not to forget anything.
->-
->-best regards
->-Steve Groom
Later,
---Brian

==========================================
Brian R. Poppenwimer, CNE, MCP
popper@xxxxxxxxxxxxxxx
Director Of Computer Operations
Nelson & Pope
www.nelsonpope.com