What is a firewall?
A system designed to prevent unauthorised access to or from a private network. Firewalls can be implemented in both hardware and software, or a combination of both. Firewalls are frequently used to prevent unauthorised Internet users from accessing private networks connected to the Internet, especially intranets. All messages or data entering or leaving the intranet pass through the firewall, which examines each message and blocks those that do not meet the specified security criteria
A firewall is considered a first line of defence in protecting private information.
There a number of firewall solutions available from software firewalls to hardware firewalls.
What benefits does a firewall offer me?
- A secure network.
- Data security.
- Unauthorised access.
- Virus protection.
- Limit internet access.
- Tracking of users.