Articles That Might Interest:

Windows Workstations (XP, 7, 8, 10, 11)

Installing The ‘Unsupported’ Profilic USB-to-Seri…

Thanks to the absence of dedicated serial ports on today’s laptops and ultrabooks, USB-to-Serial adapters are very popular amongst Cisco engineers as they are used to perform the initial configuratio…

ICMP Protocol

ICMP Protocol - Part 6: Redirect Messages

The ICMP - Redirect Message is always sent from a gateway to the host and the example below will illustrate when this is used. Putting it simply (before we have a look at the example) the ICMP - Red…

SASE & SD-WAN Networks

Configuring A SASE Unified Network: Data centers…

This article explores the need for Secure Access Service Edge (SASE) in today’s organizations. We show how one of the most advanced SASE platforms available, combines VPN and VPN and SD-WAN capabilit…

Cisco Firewalls

Cisco ASA Firepower Threat Defense (FTD): Downloa…

One Appliance – One Image is what Cisco is targeting for its Next Generation Firewalls. With this vision, Cisco has created a unified software image named “Cisco Firepower Threat Defense”. In t…

Network Cabling

USB Direct Cable Connection, USB Versions, Specif…

Today, Serial and Parallel Direct Cable Connections are considered obsolete methods of transferring data between computers. The fact is that even USB Direct Cable Connection (DCC), is not all that po…

Linux - Unix

Linux BIND DNS - Part 5: Configure Secondary (Sla…

Setting up a Secondary (or Slave) DNS sever is much easier than you might think. All the hard work is done when you setup the Master DNS server by creating your database zone files and configuring th…

Cisco Wireless

Complete Guide: How to Download & Deploy The Cisc…

This article covers the deployment of the Cisco WLC 9800-CL cloud-based controller on the VMware ESXi platform. We explain the CPU, RAM and storage requirements, provide URLs to easily download and i…

VPN Services & Guides

The Ultimate TOR vs VPN Guide – How TOR/VPN Works…

Back then, the Internet was so very young. Those were the times of Windows Maze Screensaver, of the classy Minesweeper, of grey-white MS Paint, and of silvery floppy disks. Gone are those days. Now…

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…

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…

Ethernet Protocol, CSMA/CD, Collisions

The IEEE 802.3 Frame Format

The following is a description of the Ethernet Frame Format described in the IEEE 802.3 Specification. The 802.3 Specification defines a 14 byte Data Link Header followed by a Logical Link Control He…

Cisco Routers

How and Why You Should Verify IOS Images On Cisco…

Chances are we’ve all needed to upgrade our Cisco’s device IOS software at some point. While upgrading the IOS software on a Cisco device is considered to be a fairly simple process, it can turn out…