1. Discuss the reasons and demo of how NC and TFTP services are considering as the best remote support tools during a network attack and specially in Linux and how to minimise the impact on Linux systems in terms of authentication and authorization?
2. Regardless of SSH or OpenSSH Server version, name and list 4 vulnerable of SSH or OpenSSH server services and provide solutions to avoid and/or mitigate the security risk when SSH server is served as a remote service in Linux systems?
3. In joomla Provide three solutions for each to protect database and web server from your installed CMS to increase the chance of survival of the service from inside/outside attacks. (for instance how to avoid hacking ,form deleting SQL database ,backup, mechanism of updated joomla )