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-rw-r--r--modules/caddyhttp/server.go4
1 files changed, 3 insertions, 1 deletions
diff --git a/modules/caddyhttp/server.go b/modules/caddyhttp/server.go
index e8bf900..96bc722 100644
--- a/modules/caddyhttp/server.go
+++ b/modules/caddyhttp/server.go
@@ -35,7 +35,9 @@ import (
type Server struct {
// Socket addresses to which to bind listeners. Accepts
// [network addresses](/docs/conventions#network-addresses)
- // that may include port ranges.
+ // that may include port ranges. Listener addresses must
+ // be unique; they cannot be repeated across all defined
+ // servers.
Listen []string `json:"listen,omitempty"`
// A list of listener wrapper modules, which can modify the behavior