I'm running Bind9 with 3 zones and 20 domain names (summary). Every day named process either crashes or just stops. Plus I really don't like its resouce consumption (more than 20M of RAM). Any ideas what can I use? I've already checked PowerDNS (which sux, because I want sane config files, not some database where I'll need to write SQL or half working BindBackend), NSD / Unbound (limited support of authoritative functionality), MaraDNS (same problem as NSD / Unbound + according to wiki page security issues and DDoS issues).
UPD: I'll try to be more specific: I need authoritative server + slpit-horizon + wildcards and configuration in plain text files. Thats it.