In article <[email protected]>, <[email protected]> wrote:
> This is not the DNS job to check at the web service availability. > You could make an external script that is testing for the service availibil= > ity > and change the dns accordingly, like (...) : > > web1 active ? > yes : was it active at last test ? > yes : do nothing > no : set www to point to web1 in DNS > no : was it already inactive ? > yes : do nothing > no : set www to point to web2 in DNS > > and with having www/web1/web2 having a low TTL. We do something like this for some not-very-critical services. A script (happens to run on a nameserver, but that's coincidental) watchdogs a number of servers and uses (suitably secured) dynamic update to remove non-responsive ones from a low-TTL roundrobin. It knows not to remove the last entry. Sam _______________________________________________ bind-users mailing list [email protected] https://lists.isc.org/mailman/listinfo/bind-users
