Keeping safe on the internet
Commonly-used network ports — You need to specify the right network port to enable/disable network access for a program with your firewall.Do I need anti-virus software? — There are few Linux viruses, so you probably don't need anti-virus software.Do I need to scan my emails for viruses? — Viruses are unlikely to infect your Linux computer but could infect other people you email.Enabling and blocking firewall access — You can control what programs are accessible by the network.