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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…
Complete Guide to SD-WAN. Technology Benefits, SD…
SD-WAN is the answer for enterprises and organizations seeking to consolidate network functions and services while at the same time simplify their WAN infrastructure and its management.
SD-WANs are…
Introduction to Ethernet Collisions
The word "Collision" shouldn't be any new news to people who work with networks everyday. If it is thought, don't worrie, that's why you are here.
A collision is an event that happens on an Ethernet…
CallManager Express GUI Software Installation & C…
This article covers the installation of Cisco's CallManager Express on Cisco routers. Here you'll find the necessary installation commands, files to download, router's HTTP server configuration comma…
What is OWASP? Open Web Application Security Pro…
With nearly every business sector relying on the internet and digital tools to function, it is no surprise that cybersecurity is the second-fastest growing industry. Hackers don’t care how large or s…
How to Register Cisco IP Phones & Connect CallMan…
This article shows how to connect Cisco's Unified CallManager with a CallManager Express system (including UC520, UC540 and UC560) via H323 gateway, allowing the two systems to route calls between ea…
The OSI Model: Layer 6 - Presentation Layer
The Presentation Layer gets its name from its purpose: It presents data to the Application layer. It's basically a translator and provides coding and conversion functions. A successful data transfer…
The Ethernet II Frame Format
The following is a description of the frame format described by the original Ethernet Version II specification as released by DEC, Intel, and Xerox. Like the 802.3 spec, the Version II spec defines a…
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…
Transmission Control Protocol - Part 4: In-Depth…
This article is an introduction to the 7-page TCP Header analysis section that follows. We briefly view each section of the TCP Header and then move on to its analysis using detailed colourful diagra…
Understanding Linux File System Quotas - Installa…
When you are running your own web hosting, it is important to monitor how much space is being used by each user. This is not a simple task to be done manually since one of the users or group could fi…
Renewing Cisco Certifications without sitting for…
Without a doubt, Cisco certifications and specializations are among the most popular vendor certifications in the IT industry, and earning them doesn’t come easy. Anyone who’s achieved a Cisco certif…
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