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MS Server Articles:
Windows Servers
How to Install Windows 2012 Hyper-V via Server Ma…
Our previous article covered the basic concepts of Virtualization and Windows Server 2012 Hyper-V. This article takes a closer look at Microsof…
Windows Servers
How to Install Windows Server 2012 from USB Flash…
Most would remember the days we had to have a CDROM or DVDROM in order to proceed with the installation of an operating system. Today, it is very com…
Windows Servers
Troubleshooting Windows Server 2012 R2 Crashes. A…
There are umpteen reasons why your Windows Server 2012 R2 decides to present you with a Blue Screen of Death (BSOD) or the stop screen. As virtual ma…
Windows Servers
Active Directory Tombstone Lifetime Modification
Tombstone is a container object that contains the deleted objects from Active Directory. Actually when an object is deleted from Active Directory, it…
Featured Subcategories:
Virtualization & VM Backup Articles:
How to Fix VMware ESXi Virtual Machine 'Invalid S…
In this article, we'll show you how to deal with VMs which are reported to have an Invalid Status as shown in the screenshot below. This is a co…
5 Most Critical Microsoft M365 Vulnerabilities Re…
Microsoft 365 is an incredibly powerful software suite for businesses, but it is becoming increasingly targeted by people trying to steal your data…
The Backup Bible. A Free Complete Guide to Disast…
The Free Backup Bible Complete Edition written by backup expert and Microsoft MVP Eric Siron, is comprised of 200+ pages of actionable content divide…
Differences Between VMware vSphere, vCenter, ESXi…
In this article we will cover the differences between VMware ESXi, vSphere and vCenter while also explain the features supported by each vSphere edit…
Wi-Fi Key Generator
Follow Firewall.cx
Cisco Password Crack
Decrypt Cisco Type-7 Passwords on the fly!
Linux - Unix
The Linux Command Line
You could actually skip this whole section for those who are already familiar with the topic, but we highly recommend you read it because this is the hear…
Linux - Unix
Configuring Linux Samba (SMB) - How to Setup Samba (Li…
Resource sharing, like file systems and printers, in Microsoft Windows systems, is accomplished using a protocol called the Server Message Block or SMB. F…
Linux - Unix
Linux BIND DNS - Part 4: Common BIND Files - Named.loc…
So far we have covered in great detail the main files required for the firewall.cx domain. These files, which we named db.firewall.cx and db.192.168.0, de…
Linux - Unix
Linux BIND DNS - Part 6: Linux BIND - DNS Caching
In the previous articles, we spoke about the Internet Domain Hierarchy and explained how the ROOT servers are the DNS servers, which contain all the infor…
Popular Topics
Cisco Switches
Cisco Catalyst Err-disabled Port State, Enable & Disab…
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 and…
Cisco Switches
Resolving Cisco Switch & Router ‘DHCP Server Pool Exha…
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. Ever…
Cisco Switches
Installation and Setup of Cisco SG500-52P - 500 Series…
The SG500 series Cisco switches are the next step up from the already popular SG300 Layer-3 switches. Cisco introduced the SG Small Business series switch…
Network Protocol Analyzers
How to Detect P2P (peer-to-peer) File Sharing, Torrent…
Peer-to-Peer file sharing traffic has become a very large problem for many organizations as users engage in illegal (most times) file sharing processes th…







