configure forward and reverse lookup zones ubuntu 16.04

We call this set of steps a query plan, an abstraction that groups these steps into several stages. The concept is quite simple – each query requires a finite number of steps to be resolved. Knot DNS supports configurable query modules that can alter the way queries are processed. The user should try increasing the number of workers (of the related type) slightly above 100 and if the performance gets better, he can decide about further exact setting. It may be caused by Knot design not fitting well the usecase. This is usually because of waiting for network or I/O response during the operation. The user can specify the numbers of workers for each type with configuration/server section: udp-workers, tcp-workers, background-workers.Īn indication on when to increase number of workers is a situation when the server is lagging behind the expected performance, while the CPU usage is low. Background workers process changes to the zone.īy default, Knot determines well-fitting number of workers based on the number of CPU cores. The first two types handle all network requests coming through UDP and TCP protocol (respectively) and do all the response job for common queries. There are three types of workers ready for parallel execution of performance-oriented tasks: UDP workers, TCP workers, and Background workers. The knotc zone-status command can be used to see when the next scheduled DNSSEC resign will happen. On a forced zone resign, all signatures in the zone are dropped and recreated. Forced zone resign via server control interface.The signing is initiated on the following occasions: Unless the Single-Type Signing Scheme is used, DNSKEY records in a zone apex are signed by KSK keys and all other records are signed by ZSK keys. Removing expired signatures, invalid signatures, signatures expiring in a short time, and signatures issued by an unknown key.To add an extra DNSKEY record into the set, the key must be imported into the KASP database (possibly deactivated). Note that keys added into the zone file manually will be removed. The whole DNSKEY set in zone apex is replaced by the keys from the KASP database.

The signing process consists of the following steps: Knot DNS users mailing list: knot-dns-users. Knot DNS issue tracker: /labs/knot/issues Reconfiguring server instance on-the-flyįor more info and downloads see Git repository: git:///knot-dns.git.Adding/removing/editing zones on-the-fly.RR types A, NS, CNAME, SOA, PTR, HINFO, MINFO, MX, TXT, RP, AFSDB, RT, KEY, AAAA, LOC, SRV, NAPTR, KX, CERT, DNAME, APL, DS, SSHFP, IPSECKEY, RRSIG, NSEC, DNSKEY, DHCID, NSEC3, NSEC3PARAM, TLSA, CDS, CDNSKEY, SPF, NID, 元2, L64, LP, EUI48, EUI64, URI, CAA and Unknown.

Configure forward and reverse lookup zones ubuntu 16.04