As information technology advances so does the onslaught of viruses, worms and network attacks. In order to protect your network and business, you can employ several security techniques.

	A VLAN (Virtual Local Area Network) is used to secure different users or workgroups from accessing services within a company. Many of today's Ethernet switches utilize VLANs, which can be based on a physical switch port or MAC address.
VLAN enabled Switches

	A router is used to provide communication between different user groups or subnets. Routers employ ACLs (Access Control Lists), which specify which IP address or host can access different services in the network.
Cisco Routers

NTFS (New Technology File System) permissions allow administrators to set user access rules for files and folders. Additionally, they can define the ACLs (Access Control Lists) to allow or not allow folder/file access to specified users.

A Firewall is used to prevent unauthorized entry to or from a private network and inspects certain fields of a packet to check for viruses and anomalies.

Intrusion detection and prevention systems sit at the edge of a network between the LAN (Local Area Network) and the Internet looking at traffic patterns and anomalies to prevent attacks before they happen.

	VPNs (Virtual Private Networks) provide many companies secure Internet connections between remote offices and mobile workers. Some VPN encryption techniques include hiding sensitive information contained in data packets such as credit card numbers.
Planet VPN Routers

	Please view this Wireless Network White Paper (courtesy of Netgear) on our web site: Ten Easy Steps for Wireless LAN Security
Secure Wireless Routers

By employing some or all of these security measures, your chances of losing valuable information and money can be greatly reduced.

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