Leosac Firmware 
This is basically a pre-installed SD card with Leosac software running on it.
Todo:
- Make sure log rotation is properly configured.
 
As an example here is logrotate config for rsyslog:
/var/log/syslog
{
        rotate 7
        maxsize 10M
        daily
        missingok
        notifempty
        delaycompress
        compress
        postrotate
                invoke-rc.d rsyslog rotate > /dev/null
        endscript
}
/var/log/mail.info
/var/log/mail.warn
/var/log/mail.err
/var/log/mail.log
/var/log/daemon.log
/var/log/kern.log
/var/log/auth.log
/var/log/user.log
/var/log/lpr.log
/var/log/cron.log
/var/log/debug
/var/log/messages
/var/log/leosac.log
{
        rotate 4
        maxsize 10M
        weekly
        missingok
        notifempty
        compress
        delaycompress
        sharedscripts
        postrotate
                invoke-rc.d rsyslog rotate > /dev/null
        endscript
}
When using Jessie which provide journald as a logging backend, editing /etc/systemd/journald.conf and setting MaxSystemUse should prevent log to grow too fat.
Disable ifplugd. If Leosac is configured to manage the network, ifplugd can cause trouble by reconfiguring the network on its own.