diff --git a/userspace/rootfs_override/etc/krb5.conf b/userspace/rootfs_override/etc/krb5.conf
new file mode 100644
index 0000000000000000000000000000000000000000..e9730266f38fab3c1bb8b5e8165f6ba58912f660
--- /dev/null
+++ b/userspace/rootfs_override/etc/krb5.conf
@@ -0,0 +1,6 @@
+[libdefaults]
+        default_realm = CERN.CH
+        kdc_timesync = 1
+        ccache_type = 4
+        forwardable = true
+        proxiable = true