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Cisco Services & Technologies
This article shows how to fix the Cisco VPN Reason 442: Failed to enable Virtual Adapter error on the Windows 7 (32bit or 64bit) operating system. ...
Cisco Data Center (Nexus/UCS)
The Cisco NX-OS checkpoint feature provides the capability to capture at any time a snapshot (backup) of the Cisco Nexus configurati...
Cisco Services & Technologies
 What Is Unified Communications (UC)? Unified communications is a very popular term these days and we see it appearing on almost every vendor...
Cisco Routers
NAT (Network Address Translation) is a method that allows the translation (modification) of IP addresses while packets/datagrams are traversing the...

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Data Center Articles:

The Cisco NX-OS checkpoint feature provides the capability to capture at any time a snapshot (backup) of the Cisco Nexus configurati...
Cisco virtual Port Channel (vPC) is a virtualization technology, launched in 2009, which allows links that are physically connected to two differen...
Whether you’re new to Cisco Nexus switches or have been working with them for years this article will show how to get around the Nexus NX-OS u...
This article introduces the Cisco Nexus product family (Nexus 9000, Nexus 7000, Nexus 5000, Nexus 3000, Nexus 2000, Nexus 1000V and MDS 9000). We e...

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Cisco Switches
Errdisable is a feature that automatically disables a port on a Cisco Catalyst switch. When a port is error disabled, it is effectively shut down a...
Cisco Switches
This article covers basic and advanced configuration of Cisco Catalyst Layer-3 switches such as the Cisco Catalyst 3560G, 3560E, 3560-X, 3750, 3750E, 37...
Cisco Switches
In previous articles, we showed how it is possible to configure a Cisco router or Catalyst switch to provide DHCP server services to network clients. Ev...
Cisco Switches
This article explains the procedure that should be followed to correctly shutdown/powerdown a Cisco Nexus 7000 series module and remove it from the chas...

Cisco Firewalls
This article examines the concept of NAT Reflection, also known as NAT Loopback or Hairpinning, and shows how to configure a Cisco ASA Firewall running ...
Cisco Firewalls
This article explains how to configure a Cisco Firepower 2100 series device to operate in Appliance mode. We’ll show you how to switch from Platform mod...
Cisco Firewalls
The Cisco ASA Firewall 5500-X series has evolved from the previous ASA 5500 Firewall series, designed to protect mission critical corporate networks and...
Cisco Firewalls
In late 2014, Cisco announced the new licensing model for the latest AnyConnect Secure Mobility client v4.x. With this new version, Cisco introduced a n...

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Palo Alto Networks
This article will show you how to configure an IPSec VPN tunnel between a Palo Alto firewall (all PANOS versions) and Meraki MX security appliance. Our ...
Virtualization & VM Backup
Businesses that rely on virtual machines for their day-to-day operations should think twice about securing their infrastructure. Modern use of virtual m...
SASE & SD-WAN Networks
By: Shlomo Kramer, Check Point Software & Cato Networks Co-Founder As one of the founders of Check Point Software and more recently Cato Networks, ...
Palo Alto Networks
This article explains how to register and activate your Palo Alto Firewall Appliance to obtain technical support, RMA hardware replacement, product upda...