From aae5ea6e38eff752704834a41c6d2a93330f7d86 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9=20Peters?= <andre.peters@debinux.de>
Date: Sun, 27 Jan 2019 12:58:40 +0100
Subject: [PATCH] Update prerequisite-system.md

---
 docs/prerequisite-system.md | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/docs/prerequisite-system.md b/docs/prerequisite-system.md
index 66d361bb0..4a4df3878 100644
--- a/docs/prerequisite-system.md
+++ b/docs/prerequisite-system.md
@@ -98,7 +98,8 @@ iface eth0 inet6 static
 ```
 
 Reboot or restart the interface.
+You may want to [disable cloud-init network changes.](https://wiki.hetzner.de/index.php/Cloud_IP_static/en#disable_cloud-init_network_changes)
 
-## MTU on OpenStack
+## MTU
 
-Please check your MTU and set it accordingly in docker-compose.yml. See **4.1** in https://mailcow.github.io/mailcow-dockerized-docs/install/
+Especially relevant for OpenStack users: Check your MTU and set it accordingly in docker-compose.yml. See **4.1** in [our installation docs](https://mailcow.github.io/mailcow-dockerized-docs/install/).