advice on bind/dns and many sites
Bob Hoffman writes:
> hi all,
> currently my websites are sharing one server, also having bind running
> on that server for all of them.
> I am now breaking the sites on to different machines.
> So what would you do on bond/dns?
> I was thinking of making two servers as nameservers, one master, one
> slave, for all my domains.
I'd make 3, one master and 2 slaves, keep the master behind a strict
firewall, let the slaves face the public internet.
> For resolution of the server itself I was originally going to make a
> recursive caching nameserver for the domains to go to.
> However, instead I was thinking of running bind as a caching server on
> each websites machine, with a couple extra points to online servers like
> googles (18.104.22.168, 22.214.171.124)
If you don't have privacy issues you can use google's. There's also Level3:
126.96.36.199-6. See which gives you lower latency.
> I was hoping to limit cpu/mem needs by putting the recursive/caching on
> a separate machine, but perhaps it is better to put it on each machine.
No need to run a dns server on each machine; run a couple of caches in your
network and it should be enough; maybe use google/level3 as a tertiary
nameserver, just in case.
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