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Cisco Routers
MPLS Case Study: Why Route Summarization is not R…
MPLS generates Implicit Null label (The Implicit NULL label is the label that has a value of 3) for directly connected interfaces and for the summary routes. Label Switch Router (LSR) generates this…
Network Fundamentals
Hubs & Repeaters
Network hubs were once the primary method of interconnecting network devices to create a local area network (LAN). Hubs were inexpensive, easy to install, and provided a simple means of connecting mu…
Cisco Switches
Installation and Setup of Cisco SG500-52P - 500 S…
The SG500 series Cisco switches are the next step up from the already popular SG300 Layer-3 switches. Cisco introduced the SG Small Business series switches to compete against DELL’s and HP’s offerin…
Domain Name System (DNS)
The DNS Protocol - Part 1: Introduction
If you ever wondered where DNS came from, this is your chance to find out ! The quick summary on DNS's history will also help you understand why DNS servers are run mostly on Linux and Unix-type syst…
Windows Servers
Introduction to Windows DNS – The Importance of D…
The Domain Name System (DNS) is perhaps one of the most important services for Active Directory. DNS provides name resolution services for Active Directory, resolving hostnames, URLs and Fully Qualif…
Windows Workstations (XP, 7, 8, 10, 11)
Revealing & Backing Up Your Windows 8 – Windows 8…
Backing up your Windows License Product Key is essential for reinstallation of your Windows 8 or Windows 8.1 operating system. In some cases, the Genuine Microsoft Label or Certificate Of Authenticit…
Cisco Wireless
Cisco Aironet 1100 & 1200 Series (1110, 1121, 114…
Resetting a Cisco Aironet access point can be required if you’ve lost your password or need to wipe out the configuration of a previously configured access point. Cisco provides two main methods to p…
Routing
Introduction to Routing Protocols
Distance Vector, Link State RIP, IGRP, EIGRP, OSPF
Routing protocols were created for routers. These protocols have been designed to allow the exchange of routing tables, or known networks, betwee…
Cisco Routers
Cisco Router Basics
This article will focus on Cisco's routers which can be found in almost any organization due to their popularity and market penetration. Cisco has a number of different routers, amongst them are the…
Routing
OSPF - Part 4: OSPF Neighbor States – OSPF Neighb…
This is the third article of our OSPF series which analyzes the different OSPF States routers go through during the OSPF discovery and neighbor forming process. We analyze OSPF states (Init state, 2-…
VPN Services & Guides
What is a VPN? VPNs for Beginners - Everything Y…
What is a VPN?
VPN (Virtual Private Network) is a well-known acronym amongst regular internet users. Initially used within businesses to securely connect to the corporate network, nowadays it’s bein…
VLAN Networks
Dynamic VLANs
Dynamic VLANs were introduced to grant the flexibility and complexity(!) that Static VLANs did not provide. Dynamic VLANs are quite rare because of their requirements and initial administrative overh…
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