I am running my own Authoritative DNS on bind9 for like 5 of my domains with little traffic. I am running them on 2 separate VPS servers (so every Mb of memory costs me some $x2).
Is there any way to reduce it's memory consumption down from ~45-50Mb? (I would be happy with 10-30Mb)
I know there are lighter DNS server alternatives, but this would require to replace server managing software, so I would prefer to stick with bind.
Suggestions? I've heard bind8 is better on memory consumptoin. Will I fall to hell for using it?