Solved using a footer in genzone_client
Added
        footer    = /etc/fred/genzone.footer
to genzone.conf and added
        _nicname._tcp.fo.  IN SRV 0 0 43 whois.nic.fo.
to genzone.footer
Then "genzone_client fo" included the SRV at next update,
and everything worked fine. :-)
vh ...torkil...
On frí, 2011-06-10 at 21:11 +0100, Petur Kirke wrote:
 --------------------------------------------------
 From: "Mario Guerra" <mguerra(a)nic.cr>
 Sent: Friday, June 10, 2011 5:03 PM
 To: <fred-users(a)lists.nic.cz>
 Subject: Re: SRV record
 > On Fri, 10 Jun 2011 13:31:16 +0100
 > "Petur Kirke" <peturkirke(a)hotmail.com> wrote:
 >
 >> We want to put a SRV record into our zone, something like this:
 >>
 >> _nicname._tcp.fo 86400 IN SRV 0 5 43 whois.nic.fo.
 >>
 >> How can this be done in Fred ?
 >>
 >
 > I wouldn't use FRED for that. Rather, I would use shell statements or
 > similar after running genzone_client. Like:
 >
 > genzone_client fo
 > cat >> db.fo << EOF
 > _nicname._tcp.fo 86400 IN SRV 0 5 43 whois.nic.fo.
 > EOF
 > 
named should be reloaded after this.
An alternative is to use the footer feature in genzone_client. See
above.