Fixes

Critical

• Fixed handling the case when no A/AAAA/CNAME record relates to a domain name. It caused that kZorp daemon is crashed and not started again. It may happen if and only if there is at least one hostname-based zone where the domain meets the mentioned criteria.
• Fixed performance issue in DNS cache update. It caused high CPU usage by kZorp daemon. Configurations with large number (>100) of hostname-based zones may be affected.
• Fixed handling the case when a hostname is resolved to a IPv4-mapped IPv6 address. It caused that kZorp daemon is crashed and not started again. It may happen if and only if there is at least one hostname-based zone where the domain meets the mentioned criteria.

Low

• Made some generic performance improvement which affect the whole Zorp Gateway product. It cause minor speed-up (1-2%) among other things some proxies (eg: HttpProxy, SmtpProxy, …).