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On 04.03, Harry Putnam wrote:
>
> $TTL 1D
> @ IN SOA reader.local.lan. hostmaster (
> 200405191 ; serial
> 8H ; refresh
> 4H ; retry
> 4W ; expire
> 1D ) ; minimum
> ;; Nameserver (The name '@' is implied)
> IN NS reader
> ;; smtp hub (The name '@' is implied)
> IN MX 10 reader
> ;; addresses for the canonical names
> localhost IN A 127.0.0.1
> ansil IN A 192.168.0.21
> bjp IN A 192.168.0.16
> fw IN A 192.168.0.20
> fwobsd IN A 192.168.0.19
> IN A 192.168.1.1
> harvey IN A 192.168.0.22
> mob2 IN A 192.168.0.3
> reader IN A 192.168.0.4
> IN A 192.168.1.2
> wap IN A 192.168.0.50
>
> ;; aliases
> smtp IN CNAME reader
> www IN CNAME reader
> tic IN CNAME reader
>
> ;; interface specific addresses
> fwdmz IN A 192.168.1.1
> rdmz IN A 192.168.1.2
Just a few additional comments on this:
Your entries for 'reader' and 'fwobsd' are probably not
what you really want. By defining several 'IN A' entries
for the same host name, you effectively get bind to serve
these addresses in 'round robin' fashion whenever a client
looks up that name.
Another way to look at this is that you don't name hosts
in DNS, you name IP addresses. If a host has several IP
addresses, eg. because it has several NIC's, you should
give a separate name to each IP address. In your case,
you could do something like this:
reader IN A 192.168.0.4
reader0 IN A 192.168.0.4
reader1 IN A 192.168.1.2
or
reader0 IN A 192.168.0.4
reader1 IN A 192.168.1.2
reader IN CNAME reader0
Note that you may define as many names for an IP address
as you like. A case where you'd definitely want to do
this, is with the name for the name server host itself.
Put in something like this:
ns IN A 192.168.0.4
Then you may use 'ns.local.lan.' in all your 'IN SOA' entries
instead of the name for the actual host. Then you only need
to change one entry in case you want to change to another
name server host.
Also, note that this has to be an 'IN A' entrym not an
'IN CNAME' entry, as the name in the SOA has to be an 'IN A'
entry.
--
Jo.
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