- A firewall is security system designed to prevent unauthorized access to a private network.
- Firewalls are frequently used to prevent from internet user from accessing private networks connected to the internet, especially intranets.
- An intranet is a network based on protocols belonging to an organization. Intranet web sites look and act like other web sites but the surrounding an intranet tends to off the unauthorized access
- Firewall monitors every information entering into and leaving from the network. It examines each message and block the access that do not meet the specified security.
- Security is the protection for the data stored in a computer that cannot be read by any other individuals without authorizing (login).
- So it prevents the data from hackers and virus when connected to network.
- There are hardware and software firewalls but the configuration consists of both.
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| Dell SonicWALL TZ 105 |
- It allows only valid IP addresses.
- It protects the data from viruses and hackers.
- Thus it provides security for the data.
