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VPN Services & Guides

Best VPN Service - Top VPN Service Reviews and VP…

VPN Services have become a necessity for users concerned about their online privacy and security. With literally hundreds of thousands of attacks daily, exploits and security vulnerabilities being di…

Cisco Routers

Cisco Router Password Recovery

Password recovery is a fairly frequently used procedure for administrators and engineers. Even though we usually stack our passwords in some word, excel or text file, it's very easy to forget to upda…

Ethernet Protocol, CSMA/CD, Collisions

Early Ethernet Collisions

In this example, we will refer to an imaginary Ethernet network consisting of Stations A and B and any number of other stations. The status of the network is such that the wire is idle (nobody is tal…

Network Protocol Analyzers

How to Detect P2P (peer-to-peer) File Sharing, To…

Peer-to-Peer file sharing traffic has become a very large problem for many organizations as users engage in illegal (most times) file sharing processes that not only consumes valuable bandwidth, but…

Subnetting

IP Subnetting - Part 5: Subnetting Guidelines

There is always that day when you are called upon to provide a solution to a network problem. The number of problems that can occur in a network are numerous and believe it or not, most of them can b…

Linux - Unix

How To Secure Your Linux Server or Workstation -…

Below are some of the most common recommendations and method to effectively secure a Linux Server or Workstation. Boot Disk One of the foremost requisites of a secure Linux server is the boot disk…

Linux - Unix

Installation and Configuration of Linux DHCP Serv…

For a cable modem or a DSL connection, the service provider dynamically assigns the IP address to your PC. When you install a DSL or a home cable router between your home network and your modem, your…

Windows Servers

Renaming Windows 2000 Domain Name

Sometimes renaming a domain is an essential business requirement. There are many situations, such as mergers, change of company name or migration from a test environment to a production environment…

Windows Servers

The Importance of a Hyper-V & VMware Server Backu…

Using Hyper-V Server virtualization technology, you can virtualize your physical environment to reduce the cost of physical hardware. As part of IT best practices, you implement monitoring solutions…

Windows Workstations (XP, 7, 8, 10, 11)

The Importance of Windows Hosts File - How to Use…

This article explains how the Windows operating system makes use of the popular Host file, where it is located for various operating systems, how it can be used to manipulate DNS lookups and redirect…

Supernetting & CIDR

The Supernetting / CIDR Chart

This articles build upon our previous pages covering what is Supernetting (Route Summarization) & How Supernets Work and Supernetting In-Depth Analysis - Learn to Identify and Create Supern…

Windows Servers

How to Install/Enable Telnet Client for Windows S…

IT professionals frequently need connectivity and management tools. The Telnet Client is one of the most basic tools for such activities. Using this tool, you can connect to a remote Telnet server an…