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   resolvectl    ( 1 )

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Команды (Commands)

query HOSTNAME|ADDRESS... Resolve domain names, as well as IPv4 and IPv6 addresses. When used in conjunction with --type= or --class= (see below), resolves low-level DNS resource records.

If a single-label domain name is specified it is searched for according to the configured search domains — unless --search=no or --type=/--class= are specified, both of which turn this logic off.

If an international domain name is specified, it is automatically translated according to IDNA rules when resolved via classic DNS — but not for look-ups via MulticastDNS or LLMNR. If --type=/--class= is used IDNA translation is turned off and domain names are processed as specified.

service [[NAME] TYPE] DOMAIN Resolve DNS-SD[1] and SRV[2] services, depending on the specified list of parameters. If three parameters are passed the first is assumed to be the DNS-SD service name, the second the SRV service type, and the third the domain to search in. In this case a full DNS-SD style SRV and TXT lookup is executed. If only two parameters are specified, the first is assumed to be the SRV service type, and the second the domain to look in. In this case no TXT resource record is requested. Finally, if only one parameter is specified, it is assumed to be a domain name, that is already prefixed with an SRV type, and an SRV lookup is done (no TXT).

openpgp EMAIL@DOMAIN... Query PGP keys stored as OPENPGPKEY resource records, see RFC 7929[3]. Specified e-mail addresses are converted to the corresponding DNS domain name, and any OPENPGPKEY keys are printed.

tlsa [FAMILY] DOMAIN[:PORT]... Query TLS public keys stored as TLSA resource records, see RFC 6698[4]. A query will be performed for each of the specified names prefixed with the port and family ("_port._family.domain"). The port number may be specified after a colon (":"), otherwise 443 will be used by default. The family may be specified as the first argument, otherwise tcp will be used.

status [LINK...] Shows the global and per-link DNS settings currently in effect. If no command is specified, this is the implied default.

statistics Shows general resolver statistics, including information whether DNSSEC is enabled and available, as well as resolution and validation statistics.

reset-statistics Resets the statistics counters shown in statistics to zero. This operation requires root privileges.

flush-caches Flushes all DNS resource record caches the service maintains locally. This is mostly equivalent to sending the SIGUSR2 to the systemd-resolved service.

reset-server-features Flushes all feature level information the resolver learnt about specific servers, and ensures that the server feature probing logic is started from the beginning with the next look-up request. This is mostly equivalent to sending the SIGRTMIN+1 to the systemd-resolved service.

dns [LINK [SERVER...]], domain [LINK [DOMAIN...]], default-route [LINK [BOOL...]], llmnr [LINK [MODE]], mdns [LINK [MODE]], dnssec [LINK [MODE]], dnsovertls [LINK [MODE]], nta [LINK [DOMAIN...]] Get/set per-interface DNS configuration. These commands may be used to configure various DNS settings for network interfaces. These commands may be used to inform systemd-resolved or systemd-networkd about per-interface DNS configuration determined through external means. The dns command expects IPv4 or IPv6 address specifications of DNS servers to use. Each address can optionally take a port number separated with ":", a network interface name or index separated with "%", and a Server Name Indication (SNI) separated with "#". When IPv6 address is specified with a port number, then the address must be in the square brackets. That is, the acceptable full formats are "111.222.333.444:9953%ifname#example.com" for IPv4 and "[1111:2222::3333]:9953%ifname#example.com" for IPv6. The domain command expects valid DNS domains, possibly prefixed with "~", and configures a per-interface search or route-only domain. The default-route command expects a boolean parameter, and configures whether the link may be used as default route for DNS lookups, i.e. if it is suitable for lookups on domains no other link explicitly is configured for. The llmnr, mdns, dnssec and dnsovertls commands may be used to configure the per-interface LLMNR, MulticastDNS, DNSSEC and DNSOverTLS settings. Finally, nta command may be used to configure additional per-interface DNSSEC NTA domains.

Commands dns, domain and nta can take a single empty string argument to clear their respective value lists.

For details about these settings, their possible values and their effect, see the corresponding settings in systemd.network(5).

revert LINK Revert the per-interface DNS configuration. If the DNS configuration is reverted all per-interface DNS setting are reset to their defaults, undoing all effects of dns, domain, default-route, llmnr, mdns, dnssec, dnsovertls, nta. Note that when a network interface disappears all configuration is lost automatically, an explicit reverting is not necessary in that case.

log-level [LEVEL] If no argument is given, print the current log level of the manager. If an optional argument LEVEL is provided, then the command changes the current log level of the manager to LEVEL (accepts the same values as --log-level= described in systemd(1)).