Designing a Proxy Server Implementation Before you can design a Proxy Server implementation and install Proxy Server, you need to be knowledgeable on a number of concepts: IP routing concepts Firewalls concepts Packet filtering concepts Files and protocols utilized in Web applications To design a Proxy Server implementation, there are a number of factors that has an impact on the Proxy Server design: The characteristics of data that will pass to the Proxy Server. Data characteristics should include factors such as the quantity of data which you expect the Proxy Read More

Understanding Business Integration Issues When organizations use the business-to-business and business-to-consumer commerce models when they use the Internet, they are faced with the following integrations issues: Application integration within the organization. Business integration over multiple organizations. While most businesses have different requirements for business process integration and data integration, businesses share a number of business requirements. These business requirements are listed below. From the list below, you will see that while each business requirement is different, they all share a common factor – integration issues have to be addressed to Read More

An Overview on Backing up and Restoring Active Directory To ensure availability of mission critical resources and network objects, and business continuity, you would need to perform back ups of Active Directory if it is running in your environment. This is because Active Directory normally hosts mission critical data, and resources. Backups are typically preformed for a number of reasons, including the following: Protect your network environment from the accidental deletion of, or modification of data, and from hardware failures: Having a readily accessible back up of Active Directory would Read More

ISA Server Cache Summary The Web Proxy service of ISA Server enables frequently requested Web objects to be cached. Subsequent client requests are checked against the ISA Server cache to determine whether they can be served from the cache. A new request is initiated if the ISA Server cache cannot be utilized to serve the client request. ISA Server stores most frequently accessed items in RAM. The items are then retrieved from memory instead of from disk. Objects remain in the ISA Server cache until either of the following events Read More

An Overview of Access Control Allowing users and computers unlimited access to system resources and network resources can ultimately compromise the security and stability of an organization. Even though users and computers need to access network and system resources to perform certain tasks, the access that they require should be limited to those necessary to perform these tasks. Access control has since evolved from being access oriented with Windows 2000 and earlier to being control oriented with Windows Server 2003. With the launch of Windows Server 2003, Microsoft tightened its Read More

Windows error 815 occurs when a Windows computer fails to make a DSL connection. This code replaces traditional error codes 676, 678, 691, and 769 from Windows XP, and no less than four different causes trigger it. The error’s four possible causes include DSL server problems (or an indicator that the phone line is busy), a username or password error, an unreachable destination host, or an unresponsive remote computer (general connectivity error). There are several troubleshooting steps that can be taken in order to attempt to fix Windows error 815 Read More

An Overview on Authentication Authentication is the process of identifying authorized valid users from unauthorized users. It is therefore the initial step in defining and implementing a network security strategy because it deals with restricting access to the network. A solid authentication solution prevents unauthorized users such as hackers, and Trojan horses from accessing network resources. Implementing the ideal authentication strategy for your network could be tricky because while too much authentication would keep unauthorized network access under control, it could also prevent authorized network users from legitimately accessing network Read More

In large organizations, having one SMS site for the management of all your network resources is not really the ideal solution. Here, implementing a site hierarchy that has multiple SMS sites is the better solution. A SMS site consists of the following SMS components: SMS site server SMS site systems SMS clients and resources The SMS hierarchy is the structure that links multiple sites together. The SMS hierarchy is created by linking sites together so that parent-child relationships can be formed: Parent site: This is a SMS site that contains Read More

Since the early 1990s and the introduction of Linux as a free operating system, more and more open software and file formats have become available, culminating in a commitment from Microsoft, the world's biggest closed source supplier, to support an open file format for exchanging information in document format. Docx is one of their first contributions. Open file formats such as docx are important because they allow people to share documents even if they aren't using the same software that was used to create the original document. This makes it Read More

Wireless Network Security Threats Wireless networks do not have the inbuilt physical security of wired networks, and are unfortunately more prone to attacks from intruders. Once unauthorized access is gained to the wireless network, the intruder would be able to easily access the resources of the corporate, internal network. To complicate matters, there are numerous tools which attackers can use to detect and connect to a wireless network, thus making abusing a wireless network not an intricate task. The types of attacks that wireless networks are vulnerable to are listed Read More