By a Network Security Appliance from trusted manufacturers

Firewall is a term used to describe a hardware device or software program that is used to prevent unuauthorized access to a computer network. Another, more modern name for a Firewall is a Network Security Appliance. These are commonly used to protect private networks from users on the public Internet, but can also be used to segment a network from a security perspective. A firewall is set up to check all data packets entering and exiting the private network and to pass through or block according to the security policy in force. A Network Security Appliance can use a number of techniques to protect your network including:

Acting as a packet filter to examine packets and block packets that do not meet a user defined rule.

Acting as a circuit-level gateway by checking and verifying TCP and UDP connections and allowing verified connections to pass data unhindered.

By providing an Application Gateway that will apply certain defined rules to specific applications such as FTP and TELNET and VoIP associated protocols.

By acting as a Proxy Server and examining all messages entering and leaving the network and hiding the structure and addressing of the private network.

Here at www.ipexpress.co.uk , we have a range of Network Security Appliance on offer from major manufacturers such as Cisco, Watchguard and Netgear at competitive prices, all available for delivery within a 2-4 day delivery timescale.

Check them out!!