From 3c6cd69f509afb6e1dfc48289b04a851d579d0d3 Mon Sep 17 00:00:00 2001 From: Daniel Date: Tue, 22 Sep 2020 15:31:15 +0200 Subject: [PATCH] Add support for default ports nameserver config --- resolver/resolvers.go | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/resolver/resolvers.go b/resolver/resolvers.go index 906b38ea..4bb6d205 100644 --- a/resolver/resolvers.go +++ b/resolver/resolvers.go @@ -90,6 +90,16 @@ func createResolver(resolverURL, source string) (*Resolver, bool, error) { return nil, false, fmt.Errorf("invalid resolver IP") } + // Add default port for scheme if it is missing. + if u.Port() == "" { + switch u.Scheme { + case ServerTypeDNS, ServerTypeTCP: + u.Host += ":53" + case ServerTypeDoT: + u.Host += ":853" + } + } + scope := netutils.ClassifyIP(ip) if scope == netutils.HostLocal { return nil, true, nil // skip