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+====== Download a Remote Config File and Delete it afterwards ======
+A very simple Method to roll out configfiles on a bunch of Router:
+The Router will try to download a config file from a ftp server with a unique part in the URL.
+After the File was downloaded successfully it will be deleted on the remote ftp server.
+This way you won't have a endless download.
+This Script can be used with various triggers: periodicly every XX min, after wan-up, sdk-startup and so on
+<code c remote-config-download.are>
+/* DESC: The Router will try to download a config file from a ftp server with a unique part in the URL.
+ * DESC: After the File was downloaded successfully it will be deleted on the remote ftp server
+ * Copyright (C) 2017 JJ NetModule AG, Switzerland
+ */
+// ftp/http/ftps/https is possible here
+url="ftp://myfileserver.ch/";
+user="ftpusername";
+pw="ftppassword";
+// Get Unique Part of the URL via Serial Number or Hostname
+//unique=nb_status("info").SERIAL_NUMBER;
+unique=nb_config_get("network.hostname");
+// File name on the server
+image="cfg.zip";
+// local file for storage
+local="configfile.zip";
+//We will have a remote update Link like: ftp://myfileserver.ch/myhostname/cfg.zip
+link=sprintf("%s/%s/%s",url,unique,image);
+DELAY=120;
+TRIES=5;
+for  (i=0;i<TRIES; i++) {
+		if (0 == nb_transfer_get(user,pw,link,local)) {
+			nb_syslog("Configfile Download successful, %s",link);
+			nb_transfer_delete(user,pw,link);
+			nb_update_config(sprintf("file:///%s",local));
+			exit(0);
+		} else {
+			nb_syslog("Configfile Download not successfull, retry");
+		}
+	sleep (DELAY);
+}
+nb_syslog("Could not download for %d seconds, abort config download",DELAY*TRIES);
+</code>

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