Help with unresolvable domain (subdomain, actually)
bernhardt at bart.gov
Wed Mar 2 19:14:35 UTC 2011
> A few options:
>1: once the LB knows that all back-ends are down, it can continue to answer
>with the correct A, but drop the TTL to be much shorter -- this allows
>things to recover faster.
This would work well because the actually web site wasn't down, at least not
yesterday. If I substituted the IP address for the domain name, it was
reachable and links maintained the domain portion of the URL in dotted
decimal format. It seems only DNS is hosed.
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