Articles That Might Interest:

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…

Linux - Unix

Installing Software On Linux

Installing software in Linux is very different from Windows for one very simple reason: most Linux programs come in 'source code' form. This allows you to modify any program (if you're a programmer)…

Windows Servers

How to Install and Configure Windows 2012 DNS Ser…

Our previous article covered introduction to the Domain Name System (DNS) and explained the importance of the DNS Server role within the network infrastructure, especially when Active Directory is in…

Virtualization & VM Backup

8 Critical Features to Have in a VM Backup Soluti…

Businesses that rely on virtual machines for their day-to-day operations should think twice about securing their infrastructure. Modern use of virtual machines stems from the benefits of virtualizati…

Cisco CallManager-CCME

Cisco Small Business SPA500 IP Phone Series Admin…

Firewall.cx readers can now access and freely download the Cisco Small Business Administration Guide for Cisco SPA500 series IP phones. The Administration Guide for Cisco SPA500 series IP phon…

Ethernet Protocol, CSMA/CD, Collisions

Migrating From Ethernet To Fast Ethernet

In this article we will analyze the following aspects of upgrading/migrating from 10Mbit Ethernet to 100Mbit Ethernet. Cabling Incompatible Implementations Repeaters In Fast Ethernet Replacemen…

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…

Network Cabling

1Gigabit 802.3ab -10GBase (10Gigabit) 802.3an Eth…

The 1000Base Ethernet standard, also referred to as Gigabit Ethernet (GbE or 1GigE) is defined by the IEEE 802.3-2008 standard and provides 10 times faster transfer speeds of 100Base Ethernet. Gigabi…

Domain Name System (DNS)

The DNS Protocol - Part 2: DNS Queries & Resoluti…

This section will help you understand how the DNS queries work on the Internet and your home network. There are two ways to use the domain name system in order to resolve a host or domain name to an…

Cisco Routers

Configuring Static Route Tracking using IP SLA (…

In today's network environment, redundancy is one of the most important aspects, whether its on the LAN side or on the WAN side. In this topic we will be covering WAN redundancy with multiple WAN lin…

Cisco CallManager-CCME

IP Phone 7900 Series (7940, 7941, 7942, 7960, 796…

This article explains how to reset your Cisco 7940, 7941, 7942, 7960, 7961, 7962 & 7920 IP phone to factory defaults, and how to upgrade its firmware to the latest available version. When initia…

Cisco Firewalls

Cisco ASA 5500-X Series Firewall with IPS, ASA CX…

The Cisco ASA Firewall 5500-X series has evolved from the previous ASA 5500 Firewall series, designed to protect mission critical corporate networks and data centers from today’s advanced security th…