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Linux - Unix

Linux BIND DNS - Part 2: Configuring db.domain Z…

It's time to start creating our zone files. We'll follow the standard format, which is given in the DNS RFCs, in order to keep everything neat and less confusing. First step is to decide on the doma…

Cisco Services & Technologies

How to Fix Cisco VPN Client Error 51 – Unable to…

Apple Mac OS X users are frequently faced with the Cisco VPN Client Error 51 - Unable to Communicate with the VPN Subsystem as shown in the screenshot below: When this error is produced, users wil…

OpManager - Network Monitoring & Management

Free Webinar: Enterprise-Grade Security and Manag…

The hybrid work culture has resulted in workforces increasingly using their mobile devices for work, further adding to the complexity of ensuring security across all endpoints within organizations…

Network Fundamentals

Measuring Network Performance: Test Network Throu…

Measuring network performance has always been a difficult and unclear task, mainly because most engineers and administrators are unsure which approach is best suited for their LAN or WAN network. A…

Windows Servers

Guide to Windows Server 2016 Hyper-V Hypervisor…

One of Windows Server 2016 highlights is the newer Hyper-V server that not only extends the hypervisor’s features and capabilities but also introduces a number of new enhancements and concepts that t…

Cisco CallManager-CCME

Cisco Small Business SPA500 IP Phone Series Admin…

Firewall.cx readers can now access and freely download the Cisco Small Business Administration Guide for Cisco SPA500 series IP phones. The Administration Guide for Cisco SPA500 series IP phon…

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…

Cisco Routers

Configuring Cisco Site to Site IPSec VPN with Dyn…

This article serves as an extension to our popular Cisco VPN topics covered here on Firewall.cx. While we’ve covered Site to Site IPSec VPN Tunnel Between Cisco Routers (using static public IP addres…

Virtualization & VM Backup

FREE Webinar - Fast Track your IT Career with VMw…

Everyone who attends the webinar has a chance of winning a VMware VCP course (VMware Install, Config, Manage) worth $4,500! Climbing the career ladder in the IT industry is usually dependent on one…

Windows Servers

How to Install Desktop Icons (Computer, User’s Fi…

One of the first things IT Administrators and IT Managers notice after a fresh installation of Windows 2012 Server is that there are no Desktop Icons apart from the Recycle Bin. Desktop icons such as…

Cisco Routers

How to Capture Packets on your Cisco Router with…

If you’re tired of setting up SPAN sessions to capture network traffic transiting your network and Cisco router, it’s time to start using Cisco’s Embedded Packet Capture (EPC), available from IOS 12…

Windows Servers

How to Easily Change Network Card Profile / Netwo…

Network Location Awareness (NLA) is a feature offered on Windows Server 2012 R2 and all Windows workstation editions from Windows 8.1 and above, including Windows 10. When connecting to a network (LA…