| Computer Business Services consists of three sub-units: |
| Hardware Maintenance (HWM) |
| Software Site Licensing (SSL) |
| Technology Order Center (TOC) |
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SECURITY |
We are your source for small business security news and resources - from anti-spam and anti-phishing tools to firewalls. Product focus includes software-based systems and security appliances (hardware). |
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There are several types of firewall techniques: |
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Packet filter: Looks at each packet entering or leaving the network and accepts or rejects it based on user-defined rules. Packet filtering is fairly effective and transparent to users, but it is difficult to configure. In addition, it is susceptible to IP spoofing.
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Application gateway: Applies security mechanisms to specific applications, such as FTP and Telnet servers. This is very effective, but can impose a performance degradation.
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Circuit-level gateway: Applies security mechanisms when a TCP or UDP connection is established. Once the connection has been made, packets can flow between the hosts without further checking.
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Proxy server: Intercepts all messages entering and leaving the network. The proxy server effectively hides the true network addresses.
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In practice, many firewalls use two or more of these techniques in concert. A firewall is considered a first line of defense in protecting private information. For greater security, data can be encrypted. |
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FIREWALL TECHNOLOGY |
A firewall is a software package or hardware device that acts as a selective TCP/IP filter between your network and the outside world. Firewalls implemented in hardware can either stand alone or be integrated into a router. Software firewalls simply use an existing PC with two Ethernet ports (one for the network and one for the Internet), with firewall software installed.
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| A firewall acts as a security gate that selectively controls the data packets sent between your PC and the Internet. If you think of the Internet as a series of hallways, firewalls are the security doors through which some people (i.e., data) may pass and others may not. |
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Questions? Hardware vs Software-based firewalls? |
• Hardware based firewalls are more secure than software firewalls because they typically have proprietary operating systems that deter hackers. Once the operating system is compromised, the firewall is next, followed by the network.
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What can a firewall protect against? |
• Unauthenticated interactive logins from
the "outside" world.
• Block inbound traffic, but permit outbound
• Block services
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What can't a firewall protect against? |
| • Viruses
• Insider attack |
Firewalls are just one part of a total integrated security solution.
Contact an experienced solution specialist to - Experience the difference! |
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HERE IS A LIST OF BUSINESS'S SERVICES WE OFFER |
Organize your data in a central location to help increase productivity
Protect your information against data loss with a proper backup solution
Securely protect your business infrastructure from unauthorized users
Keep your business running on a reliable network with little to no downtime
Access business information and resources from virtually anywhere, anytime
Improve team performance through enhanced collaboration
Become much more efficient, focus on what you do best, not on your PC's
Share resources and office equipment over the network and reduce costs
Implement up to date technology that can grow with today and tomorrow
Reach more customers and serve them better, all day, every day
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BUSINESS NETWORKS |
Our reliable, high-performance business-class switches, wireless, security and software products are designed for a variety of environments, providing wired and wireless connectivity within remote and branch offices, telecommuters and the remote mobile workforce. Our complete line of award-winning, value-based networking products includes everything from switches at the core of the network to routers at the edge, enabling users to share Internet access, peripherals, files, digital multimedia content and media-rich applications among multiple computers and other Internet-enabled devices. |
