Using Antivirus Software; Using Firewall Software; Securing Your Wireless Network; Backing Up Your Software Applications And Information - HP Computer User Manual

the security software trial offer or purchase the software of your choice in order to fully protect your
computer.

Using antivirus software

Computer viruses can disable programs, utilities, or the operating system, or cause them to function
abnormally. Antivirus software can detect most viruses, destroy them, and in most cases, repair any
damage they have caused.

Using firewall software

Firewalls are designed to prevent unauthorized access to a system or network. The Ubuntu operating
system ships with no open ports; therefore, it does not include a firewall utility in the base operating
system. However, you may use the Ubuntu Software Center, located in the Launcher on the left side
of the desktop, to download Gufw, a free Ubuntu firewall utility.
To install Gufw:
1. Click on the Ubuntu Software Center folder located in the Launcher on the left side of the
desktop.
2. Enter
3. Double-click the Firewall Configuration icon, and then click the Install button.
4. Follow the on-screen instructions.
To view or modify firewall settings after installing Gufw:
1. Select Ubuntu Software Center from the Launcher on the left side of the desktop, and then click
Gufw.
NOTE:
2. Follow the on-screen instructions.
NOTE: Under some circumstances a firewall can block access to Internet games, interfere with
printer or file sharing on a network, or block authorized email attachments. To temporarily resolve the
problem, disable the firewall, perform the task that you want to perform, and then reenable the firewall
immediately. To permanently resolve the problem, you must reconfigure the firewall.

Securing your wireless network

When you set up your wireless network, always enable security features. For more information, see
Protecting your WLAN on page

Backing up your software applications and information

Regularly back up your software applications and information to protect them from being permanently
lost or damaged through a virus attack or a software or hardware failure. For more information, see
Backing up, restoring, and recovering on page

Using an optional security cable lock

A security cable lock, which is purchased separately, is designed to act as a deterrent, but it may not
prevent the computer from being mishandled or stolen. Security cable locks are only one of several
38 Chapter 8 Securing your computer and information
Gufw in the search bar and press enter.
When accessing Gufw, you are prompted for the root password.
6.
43.