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Cisco CallManager-CCME
Cisco CallManager Express, also known as CME or CCME, runs on both Cisco ISR Routers and UC500 platform, including UC520, UC540 and UC560. CallManager Express's PBX functionality is built into the I…
Windows Servers
Microsoft introduced Fine-Grained Password Policy for the first time in Windows Server 2008 and the policy has been part of every Windows Server since then. Fine-Grained Password Policy allows overco…
Virtualization & VM Backup
In this article, we’ll show you how to setup or install Microsoft Windows 11 on VMware’s ESXi servers and bypass the Trusted Platform Module version 2.0 (TPM 2.0) requirement. We've also made the&nbs…
Network Cabling
In this article, we'll talk about Fiber optic cables and how it has changed the design and implementation of network infrastructures, providing high Gigabit speeds, increased security, flexibility an…
Network Fundamentals
Next-generation firewalls (NGFWs) and DMZ zones are two critical components of network security that work hand in hand to protect an organization's network from external threats. Firewalls act as a b…
Subnetting
This free online Subnet Calculator provides a fast and easy way to calculate all aspects of any IP Address and Subnet Mask. Simply enter your desired IP Address and Subnet Mask below and press Calc…
Cisco Switches
It's no news that we here at Firewall.cx enjoy writing about our installations of Cisco equipment and especially devices that we don’t get to see and play with every day. Today we cover the installat…
Cisco Routers
Remote VPN access is an extremely popular service amongst Cisco routers and ASA Firewalls. The flexibility of having remote access to our corporate network and its resources literally from anywhere i…
Linux - Unix
The db.192.168.0 zone data file is the second file we need to create and configure for our BIND DNS server. As outlined in the DNS-BIND Introduction, this file's purpose is to provide the IP Address…
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 configuration before making any changes. The captured configura…
Cisco CallManager-CCME
This article explains how to reset your Cisco 7940, 7941, 7942, 7960, 7961, 7962 & 7920 IP phone to factory defaults, and how to upgrade its firmware to the latest available version. When initia…
Windows Servers
Our previous article covered the basic concepts of Virtualization and Windows Server 2012 Hyper-V.  This article takes a closer look at Microsoft’s Hyper-V Virtualization platform and continues…

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