Articles That Might Interest:

SASE & SD-WAN Networks

SASE and VPNs: Reconsidering your Mobile Remote A…

The Virtual Private Network (VPN) has become the go to security solution for keeping communications between networks and endpoints secure. After all, VPNs offer a straightforward, secure method for c…

Cisco CallManager-CCME

CallManager Express GUI Software Installation & C…

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

Installation and Configuration of Fine-Grained Pa…

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…

Network Fundamentals

LAN Network Topologies

Network topologies can take a bit of time to understand when you're all new to this kind of cool stuff, but it's very important to fully understand them as they are key elements to understanding and…

Cisco CallManager-CCME

How to Enable & Disable Phone Port Lines on Cisco…

The Cisco ATA 186 and 188 analog phone adaptor is very common amongst Cisco CallManager (CUCM) & Cisco CallManager Express (CUCME) installations. The ATA 186/188 provides two analog phone ports…

Netflow

Netflow: Monitor Bandwidth & Network Utilization…

Monitoring network traffic & bandwidth usage via Netflow is mandatory for any type and size network. Gaining visibility into user traffic, application traffic and data flows allows network engine…

Linux - Unix

Understanding The Linux Init Process & Different…

Different Linux systems can be used in many ways. This is the main idea behind operating different services at different operating levels. For example, the Graphical User Interface can only be run if…

The OSI Model

The OSI Model: Layer 3 - Network Layer

The Network layer is responsible for routing through an internetwork and for networking addressing. This means that the Network layer is responsible for transporting traffic between devices that are…

Windows Servers

Introduction To Windows Server 2012 R2 Virtualiza…

FREE Hyper-V & VMware Backup: FREE for Firewall.cx readers for a Limited Time! Download Now! Virtualization is an abstraction layer that creates separate distinct virtual environmen…

Routing

OSPF - Part 4: OSPF Neighbor States – OSPF Neighb…

This is the third article of our OSPF series which analyzes the different OSPF States routers go through during the OSPF discovery and neighbor forming process. We analyze OSPF states (Init state, 2-…

Cisco Switches

Forcing A Cisco Catalyst Switch To Use 3rd Party…

Many companies are seeking for Cisco SFP alternatives to help cut down the costs on these expensive modules. A frequent customer problem with Cisco's new line of Catalyst switches is that they do no…

Network Cabling

1Gigabit 802.3ab -10GBase (10Gigabit) 802.3an Eth…

The 1000Base Ethernet standard, also referred to as Gigabit Ethernet (GbE or 1GigE) is defined by the IEEE 802.3-2008 standard and provides 10 times faster transfer speeds of 100Base Ethernet. Gigabi…