diff --git a/virtualisatie/proxmox/next-id.sh b/virtualisatie/proxmox/next-id.sh
new file mode 100755
index 0000000..3909ca0
--- /dev/null
+++ b/virtualisatie/proxmox/next-id.sh
@@ -0,0 +1,16 @@
+#!/bin/bash
+
+# This modifyr´s the datacenter.cfg
+# set the upper limit to upper=70000000
+
+# mkdir -p /root/backup
+
+cp /etc/pve/datacenter.cfg /root/backup/
+/usr/bin/sed -ri "s/lower=[12][0-9]{3}[01][0-9][0-3][0-9]/lower=$(date '+%y%m%d'01)/g"  /etc/pve/datacenter.cfg
+
+
+# thas adds the date + 01
+# example 25010201 is the next id for the ct or vm
+
+# set this in the crontab
+# 01 00 * * * /root/next-id.sh