resolvectl: add page (#7484)

pages/linux/resolvectl.md

@@ -0,0 +1,33 @@
+# 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:
+
+`resolvectl query {{ip_address}}`
+
+- Retrieve an MX record of 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 the public key from an email address from an OPENPGPKEY DNS record:
+
+`resolvectl opengpg {{email}}`
+
+- Retreive a TLS key:
+
+`resolvectl tlsa tcp {{domain}}:443`