Add doc

getlantern · Apr 4, 2024 · 31fea8b · 31fea8b
1 parent 5c85477
commit 31fea8b
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/proxyfilters/blocklocal.go b/proxyfilters/blocklocal.go
@@ -45,6 +45,8 @@ func BlockLocal(exceptions []string) filters.Filter {
 			}
 		}
 
+		// Note: It is important to pass Host as an already resolved and vetted IP in order to avoid
+		// DNS rebind attacks should there be any other dialers, that attempt to resolve the host down in the execution path
 		req.URL.Host = fmt.Sprintf("%s:%s", ipAddr.String(), port)
 
 		return next(cs, req)