From 2cff64fd80949e3bbe9c595f4324157b0888bca4 Mon Sep 17 00:00:00 2001
From: "Quentin McGaw (desktop)" <quentin.mcgaw@gmail.com>
Date: Sun, 23 Jan 2022 00:36:45 +0000
Subject: [PATCH] fix(settings): allow `DNS_UPDATE_PERIOD=0`

---
 internal/configuration/settings/dot.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/internal/configuration/settings/dot.go b/internal/configuration/settings/dot.go
index d432b96a..bd0ed047 100644
--- a/internal/configuration/settings/dot.go
+++ b/internal/configuration/settings/dot.go
@@ -34,7 +34,7 @@ var (
 
 func (d DoT) validate() (err error) {
 	const minUpdatePeriod = 30 * time.Second
-	if *d.UpdatePeriod < minUpdatePeriod {
+	if *d.UpdatePeriod != 0 && *d.UpdatePeriod < minUpdatePeriod {
 		return fmt.Errorf("%w: %s must be bigger than %s",
 			ErrDoTUpdatePeriodTooShort, *d.UpdatePeriod, minUpdatePeriod)
 	}