Firewall and Antivirus Software for Ubuntu

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I have recently started using the Ubuntu (a version of Linux, free to individuals) operating system on a laptop, instead of purchasing an additional Windows license. I have to say, since I only use the laptop for general word processing and web-browsing, it is working very well. With Firefox, Open Office, and Dropbox installed, it works just as well as my usual PC that I am more used to.


I was looking for a antivirus (I was told it is not required on a Linux system, but I feel more at ease to have one) and a firewall software. Someone suggested the following software to use. If you are just starting to use a Linux system like me, may be you will find this useful.

Antivirus: ClamTK
You can search for and install it using the Ubuntu software finder (go to system tools > software).

Firewall: UncomplicatedFirewall 
This came with the operating system. Follow the instructions under "Basic Usage" here: https://wiki.ubuntu.com/UncomplicatedFirewall

I have both systems up and running within 10 minutes. 
It was fairly quick and easy.

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