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Change test query to use controld.com

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Since some Active Directory could blocks clients to query for "."
This commit is contained in:
Cuong Manh Le
2024-09-30 18:20:39 +07:00
committed by Cuong Manh Le
parent f507bc8f9e
commit 4b36e3ac44
1 changed files with 4 additions and 1 deletions
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resolver.go
+4 -1
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@@ -70,11 +70,14 @@ func InitializeOsResolver() []string {
// testPlainDnsNameserver sends a test query to DNS nameserver to check if the server is available. // testPlainDnsNameserver sends a test query to DNS nameserver to check if the server is available.
func testNameserver(addr string) bool { func testNameserver(addr string) bool {
msg := new(dns.Msg) msg := new(dns.Msg)
msg.SetQuestion(".", dns.TypeNS) msg.SetQuestion("controld.com.", dns.TypeNS)
client := new(dns.Client) client := new(dns.Client)
ctx, cancel := context.WithTimeout(context.Background(), time.Second) ctx, cancel := context.WithTimeout(context.Background(), time.Second)
defer cancel() defer cancel()
_, _, err := client.ExchangeContext(ctx, msg, addr) _, _, err := client.ExchangeContext(ctx, msg, addr)
if err != nil {
ProxyLogger.Load().Debug().Err(err).Msgf("failed to connect to OS nameserver: %s", addr)
}
return err == nil return err == nil
} }