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MS Server Articles:

Windows Servers
We have some exciting news for you today! Altaro has launched a great contest in celebration of SysAdmin Day on 27th July! They will be giving away…
Windows Servers
This article serves as an Active Directory tutorial covering installation and setup of a Windows 2012 Domain Controller using Windows Server Manager…
Windows Servers
DNS is used for translating host names to IP addresses and the reverse, for both private and public networks (i.e.: the Internet). DNS does this by u…
Windows Servers
In this article, we will cover more advanced DHCP features and topics such as server options, superscopes, multicast scopes, dynamic DNS, DHCP databa…

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Virtualization & VM Backup Articles:

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…
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…
In this article we will cover the differences between VMware ESXi, vSphere and vCenter while also explain the features supported by each vSphere edit…
SysAdmin Day has arrived, and with it, gratitude for all the unsung heroes that 2020 has needed. Your hard work has made it possible for all of us to…

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Linux - Unix
For a cable modem or a DSL connection, the service provider dynamically assigns the IP address to your PC. When you install a DSL or a home cable router b…
Linux - Unix
For many engineers and administrators,  maintaining a Linux system can be a daunting task, especially if there’s limited time or experience.  Wo…
Linux - Unix
Below are some of the most common recommendations and method to effectively secure a Linux Server or Workstation. Boot Disk One of the foremost requisit…
Linux - Unix
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…

Popular Topics

Cisco Switches
This article covers basic and advanced configuration of Cisco Catalyst Layer-3 switches such as the Cisco Catalyst 3560G, 3560E, 3560-X, 3750, 3750E, 3750…
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 networ…
Cisco Switches
This article covers popular Layer 2 & Layer 3 network attacks with a focus on DHCP Starvation Attacks, Man-in-the-Middle attacks, unintentional rogue…
Windows Workstations (XP, 7, 8, 10, 11)
Around 2007, an undocumented feature of Windows, called the God Mode, was published outside of documentation provided by Microsoft. This is the Windows Ma…