If still no servers have been found yet, use the fallback properties. If available and no servers have been found yet, JNDI-DNS is used. The class is queried if enabled.Īs of Java 16 the JVM flag -add-opens java.base/=ALL-UNNAMED (classpath) or -add-opens java.base/=org.dnsjava (modules) is also required. On Android the ConnectivityManager is used (requires initialization using .tContext). On Windows, if JNA is available on the classpath, the GetAdaptersAddresses API is used. The servers can either be IP addresses or hostnames (which are resolved using Java’s built in DNS support). The properties dns.server and dns.search (comma delimited lists) are checked. If false, allows any algorithm to validate the zone.ĭ_enabled.16=falseĮnable or disable a DS record digest algorithm. Prevent algorithm downgrade when multiple algorithms are advertised in a zone’s DS records. The GOST digest requires Bounc圜astle on the classpath. To stay compliant with the RFCs, the mandatory digest IDs must be listed in this property. If this property is not specified, the DS record with the highest The list is comma-separated, the highest preference first. It can only contain DS or DNSKEY records.ĭefines the preferred DS record digest algorithm if a zone has registered multiple DS records. The file must be formatted like a DNS zone master file. The file from which the trust anchor should be loaded. Maximum number of entries in the key cache.Į.g. Maximum time-to-live (TTL) of entries in the key cache in seconds. Use the system’s hosts file for lookups before resorting to a resolver. Maximum number of CNAMEs to follow in a chain. Use an OS-assigned ephemeral port for UDP queries. Last ephemeral port for UDP-based DNS queries. Set to true to enable the reflection based DNS server lookup, see Limitations.įirst ephemeral port for UDP-based DNS queries. Set to true to disable static ResolverConfig initialization. Sets a threshold for the number of dots which must appear in a name given to resolve before an initial absolute query will be made.Ĭomma separated key-value pairs, see dnsjava.options pairs. Some settings of dnsjava can be configured via JavaĬan be IPv4/IPv6 addresses or hostnames (which are resolved using Java’s built in DNS support).Ĩ.8.8.8,:853,dns.googleĬomma separated list of DNS search paths.
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