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Diffstat (limited to 'plugin/forward/setup.go')
-rw-r--r--plugin/forward/setup.go6
1 files changed, 6 insertions, 0 deletions
diff --git a/plugin/forward/setup.go b/plugin/forward/setup.go
index 779d085ae..8d80e779d 100644
--- a/plugin/forward/setup.go
+++ b/plugin/forward/setup.go
@@ -84,7 +84,13 @@ func parseForward(c *caddy.Controller) (*Forward, error) {
protocols := map[int]int{}
+ i := 0
for c.Next() {
+ if i > 0 {
+ return nil, plugin.ErrOnce
+ }
+ i++
+
if !c.Args(&f.from) {
return f, c.ArgErr()
}