dns_options

Description:

[ CCode ( array_length = false , array_null_terminated = true ) ]
[ NoAccessorMethod ]
[ Version ( since = "1.2" ) ]
public string[] dns_options { owned get; set; }

Array of DNS options as described in man 5 resolv.

conf.

null means that the options are unset and left at the default. In this case NetworkManager will use default options. This is distinct from an empty list of properties.

The currently supported options are "attempts", "debug", "edns0", "inet6", "ip6-bytestring", "ip6-dotint", "ndots", "no-aaaa", "no-check-names", "no-ip6-dotint", "no-reload", "no-tld-query", "rotate", "single-request", "single-request-reopen", "timeout", "trust-ad", "use-vc".

The "trust-ad" setting is only honored if the profile contributes name servers to resolv.conf, and if all contributing profiles have "trust-ad" enabled.

When using a caching DNS plugin (dnsmasq or systemd-resolved in NetworkManager.conf) then "edns0" and "trust-ad" are automatically added.