DSL/Cable Services
The Internet is the world’s largest network and is comprised of many single computers as well as many small networks or LANs (Local Area Networks) all hooked up together through cables or wireless signals. Your DSL/Cable provider will bring the DSL/Cable pipe to your business location, but then what do they do? Nothing. At Access Computer Services we will connect your company no matter how small or large up to the Internet by first networking your company and then connecting your company’s network to the Internet.

Access Computer Systems DSL/Cable Services:
Connect your Office Network to DSL/Cable
 Connect your Home Network to DSL/Cable
Install routers and modems for DSL/Cable access
Install software for DSL/Cable access
Connect VPNs through your DSL/Cable
Email setup

Greater productivity, faster downloads, and faster access to e-mail
DSL/Cable Access is by far the most efficient access to the Internet for business!

Internet Security
The openness of the Internet has created a whole new set of security requirements. You have to shield data from hackers. You have to ensure the integrity of your networks. You have to protect e-transactions traveling through cyber-space. You have to authenticate parties you don't know. And, you have to make data available quickly and easily to all who need or want to use it.

Moreover, e-business is changing the way businesses operate. Tools like the Internet, intranets, and extranets are revolutionizing the way we communicate with each other. Although e-business presents seemingly endless opportunities, it also poses major challenges - particularly in the area of security. To be truly successful in e-business, your organization must ensure the security of your information assets.

ISA Server 2004 is Microsoft Corp.’s next-generation enterprise firewall, virtual private network (VPN), and Web cache solution. ISA Server 2004 takes application-layer filtering, simplified management integration, and fast Web access to new levels, making it a “must consider” for any organization looking to augment its existing security infrastructure.

Any company that puts network security at a premium. ISA Server 2004 is suitable for a broad range of customers, from small businesses looking for a simple yet integrated edge security product to enterprises deploying complex security scenarios. Midsize businesses in particular are ideal candidates for ISA Server 2004 because it meets their need for an advanced application-layer security solution that is easy to use and manage. With ISA Server 2004, customers do not have to spend time buying, deploying, and managing disparate systems.Customers and partners can get a jump on experiencing the benefits of ISA Server 2004 by participating in the public beta program, which kicks off in early 2004.

Firewalls
The most common deterrent for unwanted hackers or users in place today is the “Firewall.” The Firewall system is designed to prevent unauthorized access to or from a private network. Firewalls can be implemented in both hardware and software, or a combination of both. Firewalls are frequently used to prevent unauthorized Internet users from accessing private networks connected to the Internet, especially intranets. All messages entering or leaving the intranet pass through the firewall, which examines each message and blocks those that do not meet the specified security criteria.

 Integrating Network Security and Peace of Mind
Firewalls and VPNs, Server Security, and Desktop Defense: today's network security needs are complex. You need security systems built around a comprehensive protection strategy that safeguards your network's critical points, lets you manage your security with ease, and keeps you informed and prepared for new threats.
WatchGuard Firewall Product Info: www.watchguard.com

There are several types of firewall techniques
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.
Application gateway: Applies security mechanisms to specific applications, such as FTP and Telnet servers. This is very effective, but can create performance degradation.
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.
Proxy server: Intercepts all messages entering and leaving the network. The proxy server effectively hides the true network addresses.
 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.

Microsoft Exchange Server
Exchange 2003 is the Microsoft messaging and collaboration server designed to help your business communicate more effectively. Along with the rich client functionality provided by Microsoft Office Outlook® 2003, Exchange 2003 offers mobile, remote, and desktop e-mail access with state-of-the-art security and privacy; lower cost of ownership through the services provided by Microsoft Windows Server™ 2003; high reliability and outstanding performance; e-mail-based collaboration; and easy upgrading, deployment, and administration. Discover how Exchange 2003 can benefit you with the new and enhanced abilities and features described on this page.