On Thu, 2008-08-28 at 08:41 -0700, Marc Perkel wrote: > Here's something I threw together to make sure the /etc/resolv.conf > points to a working nameserver. I run this once a minute. It checks to > see what name servers are up and creates /etc/resolv.conf. As you all > know SA and mail servers need the first nameserver to always be working. > Cool.
I get the same effect by running a private DNS service on my SA host. Its prime use is to centralise host naming for my LAN and to act as a local DNS cache. It forwards name requests it can't satisfy to (currently) three external DNS servers, so I think it achieves the same DNS resilience as your script as well as speeding up access to frequently accessed blacklisting sites. Martin
