Articles That Might Interest:

Palo Alto Networks

Palo Alto Firewall Application-based Policy Enfor…

Our previous article examined the benefits of Palo Alto Networks Firewall Single Pass Parallel Processing (SP3) architecture and how its combine with the separate Data and Control planes to boost fir…

Linux - Unix

Linux BIND DNS - Part 6: Linux BIND - DNS Caching

In the previous articles, we spoke about the Internet Domain Hierarchy and explained how the ROOT servers are the DNS servers, which contain all the information about authoritative DNS servers the do…

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…

VLAN Networks

VLAN Tagging - Understanding VLANs Ethernet Frames

We mentioned that Trunk Links are designed to pass frames (packets) from all VLANs, allowing us to connect multiple switches together and independently configure each port to a specific VLAN. However…

Ethernet Protocol, CSMA/CD, Collisions

Differences Between Classic Ethernet And Fast Eth…

The two primary areas for concern when upgrading the network from 10Mbps to 100Mbps are cabling and hubs. As discussed on the Fast Ethernet Introduction page, in Fast Ethernet twisted pair cabling ne…

Cisco Switches

Basic & Advanced Catalyst Layer 3 Switch Configur…

This article covers basic and advanced configuration of Cisco Catalyst Layer-3 switches such as the Cisco Catalyst 3560G, 3560E, 3560-X, 3750, 3750E, 3750-X, 3850, 4500, 6500 , 9300, 9400 series, and…

Palo Alto Networks

Palo Alto Networks Firewall - Web & CLI Initial C…

This article is the second-part of our Palo Alto Networks Firewall technical articles. Our previous article was introduction to Palo Alto Networks Firewall appliances and technical specifications, wh…

Network Cabling

Direct Cable Connection

From the early PC days, Direct Cable Connection (DCC) was the most popular way to transfer data from one PC to another. Of course, it might seem a bit of an "old fashioned" way to transfer data these…

Spanning Tree Protocol (STP)

Spanning Tree Protocol – Part 2: Rapid STP Port C…

Spanning Tree Protocol, Rapid STP port costs and port states are an essential part of the STP algorithm that affect how STP decides to forward or block a port leading to the Root Bridge. In our prev…

Windows Servers

Understanding, Creating, Configuring & Applying W…

This article explains what Group Policies are and shows how to configure Windows Server 2012 Active Directory Group Policies. Our next article will cover how to properly enforce Group Policies (Group…

VLAN Networks

Static VLANs

VLANs are usually created by the network administrator, assigning each port of every switch to a VLAN. Depending on the network infrastructure and security policies, the assignment of VLANs can be im…

Network Cabling

Early Communication Technology - Morse Code and E…

We tend to think of digital communication as a new idea but in 1844 a man called Samuel Morse sent a message 37 miles from Washington D.C. to Baltimore, using his new invention ‘The Telegraph’. This…