refactor: remove redundant dump calls from Firewall setup and adjust logging level in ProxyHalf

src/internal/netfilter/firewall.go

@@ -118,8 +118,6 @@ func (f *Firewall) Setup(cfg *config.Config) (err error) {
 	if err != nil {
 		f.Cleanup()
 	}
-	f.DumpNFTables()
-	f.DumpIPTables()
 	return err
 }
 

src/internal/server/netlink/netlink_linux.go

@@ -45,6 +45,8 @@ func (s *Server) Setup() (err error) {
 		logrus.Errorf("s.Firewall.Setup: %v", err)
 		return err
 	}
+	s.Firewall.DumpNFTables()
+	s.Firewall.DumpIPTables()
 	return nil
 }
 

src/internal/server/utils/tcp.go

@@ -71,8 +71,8 @@ func ProxyHalf(dst, src net.Conn, rw *rewrite.Rewriter, destAddr string) {
 	})
 
 	if rw.Cache.Contains(destAddr) {
-		// Fast path: known pass-through
-		log.LogInfoWithAddr(srcAddr, destAddr, fmt.Sprintf("destination (%s) in cache, passing through", destAddr))
+		// Fast path
+		log.LogDebugWithAddr(srcAddr, destAddr, fmt.Sprintf("destination (%s) in cache, direct forward", destAddr))
 		io.CopyBuffer(dst, src, one)
 		return
 	}

src/main.go

@@ -64,7 +64,6 @@ func main() {
 		}
 		logrus.Info("UA3F exited gracefully")
 		os.Exit(0)
-
 	}()
 
 	if err := srv.Start(); err != nil {