Perform scheduled scripted tasks on SMB devices

Document created by Guenther W. Albrecht on Feb 6, 2018Last modified by Guenther W. Albrecht on Feb 14, 2018
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Scripting is a weak point of SMB devices: You can easily perform scripted tasks after each boot process (see sk52520 How to run commands at boot on an SG80/600/700/1100/1400/1200R -- UserScript for details), but no cron job is possible as crond does not run in GAiA Embedded (although the command crontab exists, it is unusable). So e.g. to issue a scripted reboot every two weeks at a certain time, we need to trigger the script over a SSH connection from another device.

 

Details can be found in sk106836 How to configure SSH authentication using RSA key files on Security Gateway 80 / 600 / 700 / 1100 / 1200R/1400 appliance. Remember to keep the passphrase empty when generating the key pair ! On the SMB box, we create the file /pfrm2.0/etc/myreb.sh :


#!/bin/bash -f
date >> /pfrm2.0/etc/lastReboot
(echo y ) | reboot

 

On the unit that shall issue the command (based on GAiA or Unix) we follow sk95890 How to configure SSH authentication on Gaia OS using RSA key files and create /home/admin/sshreb.sh :


#!/bin/bash -f
ssh -i /home/admin/MyKey ip.x.x.x sh -l ./pfrm2.0/etc/myreb.sh

 

After first connect per ssh, the script is able to login and perform reboot automatically after being called using cron. This is easy e.g. on a Gaia device (in GAiA WebGUI, see under System Management > Job Scheduler). Such a script can also perform TP Updates automatically, but at different scheduled times for each blade using the online_update_cmd !

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