+9. (Recommended) Set up a backup plan
+
+Bad things will happen. Let there be a hardware failure, a corrupted
+database or whatever you can think of. So once the installation of your
+Friendica node is done, you should make yoursef a backup plan.
+
+The most important file is the `.htconfig.php` file in the base directory.
+As it stores all your data, you should also have a recent dump of your
+Friendica database at hand, should you have to recover your node.
+
+10. (Optional) Reverse-proxying and HTTPS
+
+Friendica looks for some well-known HTTP headers indicating a reverse-proxy
+terminating an HTTPS connection. While the standard from RFC 7239 specifies
+the use of the `Forwaded` header.
+
+ Forwarded: for=192.0.2.1; proto=https; by=192.0.2.2
+
+Friendica also supports a number on non-standard headers in common use.
+
+
+ X-Forwarded-Proto: https
+
+ Front-End-Https: on
+
+ X-Forwarded-Ssl: on
+
+It is however preferable to use the standard approach if configuring a new server.