Index: authenticate.c
--- authenticate.c.orig
+++ authenticate.c
@@ -351,7 +351,7 @@ void auth_client(int fd, const char *user, const char 
 	char pass2[MAX_DIGEST_LEN*2];
 
 	if (!user || !*user)
-		user = "nobody";
+		user = "_rsync";
 	negotiate_daemon_auth(-1, 1);
 
 	if (!(pass = getpassf(password_file))