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Cisco Routers

Cisco Router 'User Exec' Mode

Introduction Let's see what it looks like to be in User-Exec mode on a Cisco router. Below, we have telneted into our lab router and are in User Exec Mode: The easiest way to keep track of the mo…

Cisco Routers

Configuring NAT Overload On A Cisco Router

NAT (Network Address Translation) is a method that allows the translation (modification) of IP addresses while packets/datagrams are traversing the network. NAT Overload, also known as PAT (Port Addr…

Network Protocol Analyzers

How to Detect SYN Flood Attacks with Capsa Networ…

This article explains how to detect a SYN Flood Attack using an advanced protocol analyser like Colasoft Capsa. We’ll show you how to identify and inspect abnormal traffic spikes, drill into captured…

Cisco Routers

Cisco Router 'Privileged' Mode

To get into Privileged Mode we enter the "Enable" command from User Exec Mode. If set, the router will prompt you for a password. Once in Privileged Mode, you will notice the prompt changes from ">…

SASE & SD-WAN Networks

Converged SASE Backbone – How Leading SASE Provid…

Global connectivity is top of mind for many IT teams at organizations of all sizes. We are currently in the middle of a dramatic shift in business and technology practice, as users are becoming more…

Cisco Data Center (Nexus/UCS)

Nexus 7000/7700 Software Upgrade via ISSU. Comple…

This article shows how to perform an ISSU (In-Service Software Upgrade) on a Nexus Data Center switch (7000 and 7700 models) and avoid service and network disruption. We explain the importance of kee…

Cisco CallManager-CCME

Connecting & Configuring SPA8000 with UC500, 520…

When it comes to connecting multiple analog phones to VoIP systems like Cisco’s Unified Communication Manager Express (CallManager Express) or UC500 series (Includes UC520, UC540, UC560), the first t…

TCP - UDP Protocol Analysis

Transmission Control Protocol - Part 2: Quick Ove…

As previously mentioned on a number of occasions, TCP is one of the two protocols that lives at the Transport layer and is used to carry data from one host to another. What makes TCP so popular is th…

Windows Servers

Windows Server 2016 – Hyper-V Virtualization Upda…

The new Hyper-V virtualization features offered by Windows Server 2016 are planning to make major changes in the virtualization market. From Nested Hyper-V, revolutionary security, new management opt…

Windows Servers

Free Webinar: Scripting & Automation in Hyper-V w…

System Center Virtual Machine Manager (SCVMM) provides some great automation benefits for those organizations that can afford the hefty price tag. However, if SCVMM isn’t a cost effective solution fo…

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 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…