The Function of Firewalls

Castellan offers a wide range of business solutions, and we specialize in computer networking. We understand that your information needs to be instantaneous but also guarded. You have sensitive data that needs to kept away from prying eyes both within and outside of your organization. The basic tool used to protect computers is a firewall. At Castellan, we can help if you need an IT consultant in Beverly Hills; and we use the industry’s leading firewall and directory services to enable network security on the computer networks that we build and maintain.
What is a firewall? A firewall is filtering software or hardware that checks out every piece of data sent from the Internet or from a network to your computer and either permits the transmission to come through or denies access based on configurations.
The firewall can work in one of two ways. It can prohibit all traffic unless it meets certain criteria or the firewall can allow all transmissions to get through except data that meets a predetermined set of criteria.

A firewall can also be used for outbound information, to prevent employees from sending certain types of e-mails or to prevent them from sending data outside of the company’s network. The configurations of a firewall can be specially programmed according to a company’s specific desires – such as to prevent access to social networking sites.
Another option companies have is to designate a single computer on the network for file sharing purposes while restricting all of the other computers.
The primary function of a firewall on a personal computer is to protect the computer from malicious mischief because malicious software, also called malware, is the chief threat to your home computer.
Two of the potential problems that can be prevented by the use of a firewall are: computer viruses which can quickly do a lot of damage to your files; and spyware, which is designed to gain your personal information in order to steal your identity for a variety of purposes.
Contact Castellan if you want more information about firewalls or if you need a skilled IT consultant in Burbank.

Castellan provides nationwide IT services for all kinds of businesses. Our professionals do network management in Los Angeles and surrounding areas. Our company has been doing computer consulting in Pasadena for many years. If you need computer services Glendale give us a call immediately.