Module 3 Using Linux

Exam Objective 1.4 ICT Skills and Working in Linux Objective Summary Gain desktop skills Introduce the command line Learn about Linux in industry, cloud computing, and virtualization

Working with the Linux Environment

Graphical vs. Non-Graphical Graphical mode runs an X-server, has windows, and menus Non-graphical mode is text only, focuses on shell access You can run multiple shells in graphical mode, each within their own window

Getting to a terminal Look for xterm or terminal Perform a search Look for a “Utilities” or “System” menu You can have multiple terminal windows open Cut and paste between different applications Same shells as non-graphical mode

Working with Linux Lots of software available to get office work done with Linux LibreOffice provides a word processor, spreadsheet, and presentation package that are compatible with Microsoft applications Firefox or Chromium for web browsing Distribution or desktop environment will provide email tools and other apps like a calculator and notepad

Linux Security Basics

Keeping Safe Cookies are a small token that your browser sends back to the originating site on each request Cookies are the biggest violators of privacy You can disable cookies entirely Or just wipe them at the end of the session Also able to disable 3rd party cookies

Passwords Use strong, unique passwords everywhere Software like KeePassX securely save your passwords so you don’t need to remember as many A strong password is random 10 or more characters Mix of UPPERCASE and lowercase Add in symbols (#![;…

Protecting your computer Use a firewall A default “deny incoming; allow outgoing” policy is very effective iptables is the built in Linux firewall system Keep up to date Your distribution should make it easy to check for, and install, upgrades Updates have fixes for security problems Check often, or have your computer do it for you