Server Monitoring

• Most of analytics, inclduing Apache, AWS, Google Analytics and GitHub, are available in admin console. No need to login at vendors to see statistics. Alternatively, you can login at vendor's using daslab Gmail account.
• For server package upgrade, run upd, which is a shortcut that updates both apt-get and pip. Afterwards, make sure Apache is running with worker, NOT prefork!
• To restart the server, swap_off first and use sudo reboot. To turn on swap to expand the instance's memory, use command swap_on.