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Windows Servers

Windows 2003 DHCP Server Installation & Configura…

DHCP (Dynamic Host Configuration Protocol) is a protocol that allows clients on a network to request network configuration settings from a server running the DHCP server service which, in our case, w…

Web Application Vulnerability Scanners

Understanding, Avoiding & Protecting Against Cros…

This article explains what a web browser cookie is and examines how Cross Site Request Forgery work by allowing hackers to intercept and access web browser cookies from unaware users trying to l…

Cisco Services & Technologies

Troubleshooting Cisco VPN Client Windows 7 - How…

This article shows how to fix the Cisco VPN Reason 442: Failed to enable Virtual Adapter error on the Windows 7 (32bit or 64bit) operating system. If you are a Windows 7 user, it's most likely you've…

Spanning Tree Protocol (STP)

Spanning Tree Protocol – Part 3: Bridge ID, Prior…

In this article we will examine the Spanning Tree Bridge ID structure, explain why it has increments of 4096, how VLAN information is embedded (for Per-VLAN Spanning Tree & multiple STP instances…

Windows Servers

Configuring Domain Group Policy for Windows 2003

Windows 2003 Group Policies allow the administrators to manage a group of people accessing a resource efficiently. The group policies can be used to control both the users and computers. They give b…

Virtualization & VM Backup

6 Key Areas to Consider When Selecting a VM Backu…

Backup and Disaster recovery are core considerations for any business with an IT footprint, whether that is on-premises or in the cloud. Your business depends on reliable IT systems to support the b…

TCP - UDP Protocol Analysis

Transmission Control Protocol - Part 1: Introduct…

Understanding how each protocol fits into the OSI Model is essential for any network engineer. This page analyses how TCP is classified as a 'transport protocol' and gives you an insight into what to…

Linux - Unix

Linux BIND DNS - Part 3: Configuring The db.192.1…

The db.192.168.0 zone data file is the second file we need to create and configure for our BIND DNS server. As outlined in the DNS-BIND Introduction, this file's purpose is to provide the IP Address…

Web Application Vulnerability Scanners

Everything You Need to Know About SQL Injection A…

SQL Injection Attacks are one of the most popular attacks against web servers, websites and web applications. A fairly popular website can expect to receive anywhere between 80 and 250 SQL injection…

Routing

The IP Routing Process - Step-by-Step Analysis

We are going to analyse what happens when routing occurs on a network (IP routing process). When I was new to the networking area, I thought that all you needed was the IP Address of the machine you…

Linux - Unix

Configuring Linux Samba (SMB) - How to Setup Samb…

Resource sharing, like file systems and printers, in Microsoft Windows systems, is accomplished using a protocol called the Server Message Block or SMB. For working with such shared resources over a…

Windows Servers

How to Install and Configure SNMP for Windows Ser…

Simple Network Management Protocol (SNMP) is a UDP protocol that uses port 161 to monitor and collect detailed information on any network device supporting the SNMP protocol. All Windows servers supp…