When you start building a computer network to support your small business, probably network security would be the last thing to take care of. Actually this is ridiculous. When your network connects to the internet, you expose it to the wild internet where all the threats exist. Internet threats always scan to find the vulnerabilities of your system to infiltrate into the network and compromise your system.
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Doesn’t matter how large the scale of your business network is – small to enterprise business, security must be treated seriously. Security protection should be dependable on how critical the information that must be protected. Information is your business assets too that must be protected against any threats. Unfortunately, network security is very complicated, very expensive and only security experts can design secure network infrastructure. So what happened with small businesses which don’t have security experts to build a secure network and easy to maintain by ordinary network administrators? Unified Threat Management (UTM) firewall appliance is the solution.
Why UTM firewall for your small business network security? A secure network is very complicated and is very expensive but is worth for the protection of your valuable information. UTM firewall provides affordable comprehensive security and with minimal complexity. For small business networks, deployment of the UTM firewall is an ideal solution. There are many network security appliances and UTM appliances available in the marketplace you can consider for your small business network security such as NSA 240 by SonicWall, or NETGEAR ProSecure UTM10 Appliance.
SonicWall NSA 240
SonicWall NSA (Network Security Appliance) 240 is a comprehensive security appliance designed for small to medium sized business networks or branch offices. The appliance integrates multi-core hardware including IDP (intrusion detection and prevention), SSL VPN, high availability, advanced networking, and Application Intelligence and Control, for real-time protection without compromising performance.
NSA 240 Sonicwall provides comprehensive protection against both internal and external threats including content inspection, application control and threat prevention throughout the network. NSA is powered by RFDPI (Reassembly-Free Deep Packet Inspection™) engine which works in application layer to effectively protect against any hidden application vulnerabilities. RFDPI is a patented engine and is the heart of all Sonicwall network security to allow you manage local, remote and mobile network security in an easy and cost-effective way.
Redundancy Networking
NSA 240 Sonicwall is ideal for your small business and complex environment. It includes 3xGigabit Ethernet ports; 6x 10/100Mbps ports (configurable Ethernet interfaces); 2USB and PC-Card slot (for optional 3G modems).
For business continuity where constant internet connectivity is needed, you can configure the Ethernet port as the secondary WAN port and configure the port as the failover connection when your primary WAN connection is failure. And when your primary WAN connection is restored, the systems will failback to your primary one. See also the principle of server redundancy – clustering system.
The figure above is the diagram of Sonicwall NSA 240 as the UTM firewall in small business and is integrated with VPN-SSL 200 Sonicwall. The second WAN connection is used for redundant WAN. When your primary WAN is failure, the system will failover to the second WAN to keep your business running without interruption.
Even-though this Sonicwall NSA 240 is an all-in-one network security solution for your small business, you should have a strong computer networking background in deploying the device to meet your business needs. Or you need to hire network security consultant in implementing the device effectively. Please also note that to enable add-on security services such as content filtering; gateway anti-virus; security suite; or anti-spam, you need to subscribe in a yearly (or more) basis. Security is expensive, but it is worth for your information protection – your valuable business assets.
By Ki Grinsing
See also:
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- Computer network diagram general concept
- NSA2400 network security appliance
- RAID 5 controller SCSI – for high speed data transfer
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