Introduced release , a high-performance authoritative DNS server (the resolver is implemented as a separate application), supporting all modern DNS features. The project is developed by the Czech domain registry CZ.NIC, written in C and under the GPLv3 license. The server is distinguished by its focus on high query processing performance, for which a multi-threaded and largely non-blocking implementation is used, well-scalable on SMP systems. Features include adding and removing zones on the fly, zone transfers between servers, DDNS (dynamic updates), NSID (RFC 5001), EDNS0 extensions, and DNSSEC (including NSEC3), response rate limiting (RRL).
In the new release:
- A new blocking mode for handlers has been introduced , defined via knotc;
- In the module , a new mode for weighting records has been introduced;
- In the module , the ability to configure flow limiting (udp-allow-rate) for UDP has been added;
- Added the ability to set an infinite expiration time for salt for NSEC3;
- A new zone event status 'running' has been added to the knotc output;
- Ensured that PMTU information for IPv4/UDP is ignored using the option IP_PMTUDISC_OMIT.
Source: opennet.ru
