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MS Server Articles:

Windows Servers
Simple Network Management Protocol (SNMP) is a UDP protocol that uses port 161 to monitor and collect detailed information on any network device supp…
Windows Servers
The Show Desktop feature, included with almost all versions of Windows up to Windows 7, allows a user to minimize or restore all open programs and e…
Windows Servers
The Domain Name System (DNS) is perhaps one of the most important services for Active Directory. DNS provides name resolution services for Active Dir…
Windows Servers
The Windows Server 2008 first carried FSRM or Fie Server Resources Manager, which allowed administrators to define the file types that users could sa…

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Virtualization & VM Backup Articles:

SSH access to VMware’s ESXi server is by disabled by default however there are many reasons where SSH might be required. VMware and System administra…
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…
The Free Backup Bible Complete Edition written by backup expert and Microsoft MVP Eric Siron, is comprised of 200+ pages of actionable content divide…
In this article we will cover the differences between VMware ESXi, vSphere and vCenter while also explain the features supported by each vSphere edit…

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Linux - Unix
This article was written thanks to our recent encounter of a HP DL120 G7 rack mount server equipped with a HP Smart Array B110i SATA Raid controller, need…
Linux - Unix
Different Linux systems can be used in many ways. This is the main idea behind operating different services at different operating levels. For example, th…
Linux - Unix
Vsftpd is a popular FTP server for Unix/Linux systems. For thoes unaware of the vsftpd ftp server, note that this is not just another ftp server, but a ma…
Linux - Unix
Installing software in Linux is very different from Windows for one very simple reason: most Linux programs come in 'source code' form. This allows you to…

Popular Topics

Cisco Routers
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
Our previous article covered how to fix the Cisco Configuration Professional display/window problem where the CCP application is displayed in about one th…
Cisco Switches
Running Spanning Tree Protocol (STP) in a large network environment can be a challenging task especially when features/enhancements such as BPDU Filter an…
Cisco Routers
To get into Privileged Mode we enter the "Enable" command from User Exec Mode. If set, the router will prompt you for a password. Once in Privileged Mode…