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feat(dns): re-introduce DNS_SERVER option

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- force to set `DNS_UPSTREAM_RESOLVER_TYPE=plain` to avoid any confusion/security hole
- force to set `DNS_UPSTREAM_PLAIN_ADDRESSES` to addresses only with port 53
This commit is contained in:
Quentin McGaw
2026-05-05 21:15:28 +00:00
parent aab10f9d3f
commit 4ea2337668
5 changed files with 97 additions and 18 deletions
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internal/configuration/settings/deprecated.go
+2 -4
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@@ -14,10 +14,8 @@ func readObsolete(r *reader.Reader) (warnings []string) {
"DOT_VALIDATION_LOGLEVEL": "DOT_VALIDATION_LOGLEVEL is obsolete because DNSSEC validation is not implemented.",
"HEALTH_VPN_DURATION_INITIAL": "HEALTH_VPN_DURATION_INITIAL is obsolete",
"HEALTH_VPN_DURATION_ADDITION": "HEALTH_VPN_DURATION_ADDITION is obsolete",
"DNS_SERVER": "DNS_SERVER is obsolete because the forwarding server is always enabled.",
"DOT": "DOT is obsolete because the forwarding server is always enabled.",
"DNS_KEEP_NAMESERVER": "DNS_KEEP_NAMESERVER is obsolete because the forwarding server is always used and " +
"forwards local names to private DNS resolvers found in /etc/resolv.conf",
"DNS_KEEP_NAMESERVER": "DNS_KEEP_NAMESERVER is obsolete because you should use the built-in server which now " +
"forwards local names to private DNS resolvers found in /etc/resolv.conf at container start",
}
sortedKeys := maps.Keys(keyToMessage)
slices.Sort(sortedKeys)