diff --git a/readme.md b/readme.md
index 9beb687..576abbc 100644
--- a/readme.md
+++ b/readme.md
@@ -99,4 +99,14 @@ tmpdir: /var/lib/vz
 #exclude-path: PATHLIST
 #pigz: N
 notes-template: {{guestname}}-{{node}}
-```
\ No newline at end of file
+```
+
+# lxc setting
+
+For version >= 6.5.x the simple approach is edit /etc/pve/nodes/ns316107/lxc/VMID.conf then enter this line:
+
+```
+lxc.prlimit.nofile: 150000
+```
+
+Then .. restart the CT.
\ No newline at end of file