diff --git a/notes/allowed.txt b/notes/allowed.txt
index 5e607cf..66dfe4c 100644
--- a/notes/allowed.txt
+++ b/notes/allowed.txt
@@ -10,3 +10,15 @@
 ◦ strerror / gai_strerror.
 ◦ printf and its family.
 ◦ Your libft functions.
+
+== Sniff
+◦ inet_ntoa
+◦ pthread lib
+
+== Auto resolution
+◦ ioctl
+◦ perror
+
+== Persistency
+◦ alarm
+◦ clock_nanosleep