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tldr/pages/linux/resolvectl.md
Matthieu LAURENT f2128bfbb8
resolvectl: add cache flushing and statistics, remove openpgp (#10735) 
* resolvectl: add flush-caches and statistics

* resolvectl: remove openpgp

* resolvectl: add precision about DNSSEC verdicts

Co-authored-by: Lena <126529524+acuteenvy@users.noreply.github.com>

---------

Co-authored-by: Lena <126529524+acuteenvy@users.noreply.github.com>
2023-09-20 13:26:05 +05:30

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resolvectl

Resolve domain names, IPv4 and IPv6 addresses, DNS resource records, and services. Introspect and reconfigure the DNS resolver. More information: https://www.freedesktop.org/software/systemd/man/resolvectl.html.

  • Show DNS settings:

resolvectl status

  • Resolve the IPv4 and IPv6 addresses for one or more domains:

resolvectl query {{domain1 domain2 ...}}

  • Retrieve the domain of a specified IP address:

resolvectl query {{ip_address}}

  • Flush all local DNS caches:

resolvectl flush-caches

  • Display DNS statistics (transactions, cache, and DNSSEC verdicts):

resolvectl statistics

  • Retrieve an MX record of a domain:

resolvectl --legend={{no}} --type={{MX}} query {{domain}}

  • Resolve an SRV record, for example _xmpp-server._tcp gmail.com:

resolvectl service _{{service}}._{{protocol}} {{name}}

  • Retrieve a TLS key:

resolvectl tlsa tcp {{domain}}:443