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Virtualization & VM Backup

World Backup Day with Free Amazon Voucher and Pri…

Celebrate World Backup Day and WIN with Altaro! We all remember how grateful we were to have backup software when facing so many data loss mishaps and near-catastrophes. If you manage your compa…

Cisco Services & Technologies

Dynamic Multipoint VPN (DMVPN) Deployment Models…

Following our successful article Understanding Cisco Dynamic Multipoint VPN - DMVPN, mGRE, NHRP, which serves as a brief introduction to the DMVPN concept and technologies used to achieve the flexibi…

Virtualization & VM Backup

How to Enable SNMP on VMware ESXi Host & Configur…

In this article we will show you how to enable SNMP on your VMware ESXi host, configure SNMP Community string and configure your ESXi firewall to allow or block access to the SNMP service from specif…

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…

The OSI Model

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 OSI Model

The OSI Model: Layer 2 - Datalink Layer

The Datalink ensures that messages are delivered to the proper device and translates messages from the Network layer into bits for the Physical layer to transmit. It formats the message into data fra…

Windows Servers

How to Enable ‘Web Server’ Certificate Template O…

In this article we will show you how to enable the ‘Web Server’ certificate template option on a Windows Certification Authority (Windows CA) Server. The Web Server option is usually not presen…

Cisco Routers

How To Fix Cisco Configuration Professional (CCP)…

Our previous article covered how to fix the Cisco Configuration Professional display/window problem where the CCP application is displayed in about one third of the browser’s window. Users looking fo…

OpManager - Network Monitoring & Management

Free Webinar: Clients' network configuration and…

Defending your client's network from faulty configuration changes, poor compliance, and bringing the network back quickly from downtime can be challenging. It requires a lot of effort and time, a fai…

Cisco Wireless

Understanding, Configuring & Tweaking Web-based C…

Cisco Aironet Access Points, just like most Cisco devices, provide a web interface from which we are able to configure the device. It is often we are presented with a number of options and settings…

Cisco Services & Technologies

WEB SSL VPN - The Next Wave Of Secure VPN Services

Fifteen years ago Virtual Private Networks (VPN) access was a fairly new concept to most businesses. While large corporations already had a good head-start with VPN technologies, the rest were starti…

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…