IPTables will give you sufficent control.
I suggest that you create a separate rule table to manage db access
fill it from a script

mick



At 07:32 PM 17/02/2004 -0600, you wrote:

>Hi,
>
>I was wondering about how to secure access to the Linux server on which
>the firebird server is running on.
>
>According to the documentation I need to add the list of hosts I allow
>to access the database server to /etc/hosts.equiv but doesn't it then
>allow anyone from that remote host to connect to the Linux server? If
>I want to allow only certain users to connect only to the database
>service but not to any other service, how would I handle this? Can I
>use /etc/hosts.allow and hosts.deny? If I can, what is the service
>name I should use? Any other security recommendations? A pointer to a
>document would be fine.