rename script upload-backup -> backup-upload

doc/backup-upload.md

@@ -0,0 +1,70 @@
+Upload backup to server
+=======================
+
+[◀ Go back to main README](../README.md)
+
+🛈 This script can not be used on its own but requires the base installation.
+See [main README](../README.md) for details.
+
+Description
+-----------
+
+This script uploads binary backup (`/ system backup save`) and complete
+configuration export (`/ export terse`) to external server.
+
+### Sample notification
+
+![backup-upload notification](backup-upload.d/notification.svg)
+
+Requirements and installation
+-----------------------------
+
+Just install the script:
+
+    $ScriptInstallUpdate backup-upload;
+
+Configuration
+-------------
+
+The configuration goes to `global-config-overlay`, these are the parameters:
+
+* `BackupSendBinary`: whether to send binary backup
+* `BackupSendExport`: whether to send configuration export
+* `BackupPassword`: password to encrypt the backup with
+* `BackupRandomDelay`: delay up to amount of seconds when run from scheduler
+* `BackupUploadUrl`: url to upload to
+* `BackupUploadUser`: username for server authentication
+* `BackupUploadPass`: password for server authentication
+
+Also notification settings are required for e-mail, matrix and/or telegram.
+
+### Issues with SFTP client
+
+The RouterOS SFTP client is picky if it comes to authentication methods.
+I had to disable all but password authentication on server side. For openssh
+edit `/etc/ssh/sshd_config` and add a directive like this, changed for your
+needs:
+
+    Match User mikrotik
+        AuthenticationMethods password
+
+Usage and invocation
+--------------------
+
+Just run the script:
+
+    / system script run backup-upload;
+
+Creating a scheduler may be an option:
+
+    / system scheduler add interval=1w name=backup-upload on-event="/ system script run backup-upload;" start-time=09:25:00;
+
+See also
+--------
+
+* [Send backup via e-mail](backup-email.md)
+* [Upload backup to Mikrotik cloud](backup-cloud.md)
+
+---
+[◀ Go back to main README](../README.md)  
+[▲ Go back to top](#top)