Thanks Timothy by your help. Searching Dejanews, I found the answer:
To avoid "No default TTL set using SOA instead" message in you
/var/adm/messages (and console) everytime you restart your named daemon,
set the default TTL (it makes sense, no??? :-)  in the first line og
each zone file:
$TTL 1d
Just do it.
Thanks all
Christian
Christian Pinheiro wrote:
> 
>         Hi there,
> 
>         Every time we restart our DNS daemon, the named logs on
> /var/adm/messages the follow messages:
> 
> =========================
> Aug 23 18:18:29 lynx named[25373]: Zone "veritelnet.com.ar" (file
> virtual/veritelnet.com.ar): No default TTL set using SOA minimum instead
> Aug 23 18:18:29 lynx named[25373]: Zone "193.230.200.in-addr.arpa" (file
> named.rev): No default TTL set using SOA minimum instead
> Aug 23 18:18:29 lynx named[25373]: Zone "0.0.127.in-addr.arpa" (file
> named.local): No default TTL set using SOA minimum instead
> ==========================
> 
> 
> this is one of my conf files:
> 
> ===========================
> @                       IN   SOA    servername.veritel.com.br.
> root.ns.veritel.com.br.
>  (
>                         1999081002  ; serial number
>                         10800       ; refresh after 3 hours
>                         3600        ; retry after 1 hour
>                         604800      ; expire after 1 week
>                         3600 )     ; minimum TTL of 1 day
> 
>                         IN      NS      ns3.veritel.com.br.
>                         IN      NS      ns2.veritel.com.br.
> servername              IN      A       xxx.xxx.xxx.xxx
> ===========================
> 
>         But all appears to be running ok. I know there may have one place to
> setup a default TTL, but where? I read the DNS&BIND book (O'Reilly and
> Assoc), and the only tip I found is to use one TTL for each record. But
> it's very strange, because we had ever used the same conf files, and
> nothing appeared on our console.
> 
>         Does anybody can help me with this, please?
> 
>         Thanks in advance
> 
>         Christian Pinheiro
>         pinheiro@veritel.com.br
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