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 computer, but could infect the computers of people you email. Daugiau informacijos Tinklo ryšiai, internetas bei el. paštas — Connect to wireless and wired networks. Stay safe with a VPN. Create a wireless hotspot.