What is a firewall and what does it do to your network???
A firewall is a network security system which monitors and controls incoming and outgoing network traffic, this is based on predetermined security rules. A firewall typically establishes a barrier between a trusted internal network and untrusted external network, such as the internet for example.
Firewalls prevent unwanted internet users from accessing private networks connected to the internet, especially intranets.
When searching the internet there are many dangers such as malware and hackers all trying to gain access to your computer, where the firewall keeps cyber crimes and hackers from penetrating your computer or devices.
A firewall acts as a defence systems for a local computer.
There are three types of firewalls:
- Personal firewall – generally protect one PC or a small home network
- Departmental firewall – might protect a small business, it would protect a limited amount of computers in a small location
- Enterprise firewall – protects thousands of users in various locations.
Firewalls are also available in a number of formats:
- Network Router – which connect computers to the internet and transfers data between different networks
- Firewall appliance – a piece of hardware integrated with firewall software
- All-in-one – this could be cable modem, router, network hub, firewall and base station all at once however the firewall options are limited.
Our firewall solutions ensure high reliability, performance, monitoring, management, reporting and are suited for businesses of all sizes, even those based across several locations.