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MS Server Articles:
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
Free Webinar: Troubleshooting & Fixing Microsoft…
Users working with Hyper-V Virtualization would be interested to know that Altaro is hosting a free webinar on the 25th of February 2016 at 4pm CET /…
Windows Servers
Windows 2003 DHCP Server Advanced Configuration -…
Part 1 of our Windows 2003 DHCP Server Advanced Configuration article explained the creation and configuration of DHCP Scope options and how to confi…
Windows Servers
How to Install/Enable Telnet Client for Windows S…
IT professionals frequently need connectivity and management tools. The Telnet Client is one of the most basic tools for such activities. Using this…
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…
8 Critical Features to Have in a VM Backup Soluti…
Businesses that rely on virtual machines for their day-to-day operations should think twice about securing their infrastructure. Modern use of virtua…
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…
How to Enable SNMP on VMware ESXi Host & Configur…
In this article we will show you how to enable SNMP on your VMware ESXi host, configure SNMP Community string and configure your ESXi firewall to all…
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Linux - Unix
Configuring Linux to Act as a Firewall - Linux IPTable…
What exactly is a firewall? As in the non-computer world, a firewall acts as a physical barrier to prevent fires from spreading. In the computer world too…
Linux - Unix
Linux BIND DNS - Part 5: Configure Secondary (Slave) D…
Setting up a Secondary (or Slave) DNS sever is much easier than you might think. All the hard work is done when you setup the Master DNS server by creatin…
Linux - Unix
Linux BIND DNS - Part 2: Configuring db.domain Zone D…
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 co…
Linux - Unix
Working with Linux TCP/IP Network Configuration Files
This article covers the main TCP/IP network configuration files used by Linux to configure various network services of the system such as IP Address, Defa…
Popular Topics
Cisco Routers
Configuring Cisco Dynamic Multipoint VPN (DMVPN) - Hub…
Our DMVPN Introduction article covered the DMVPN concept and deployment designs. We explained how DMVPN combines a number of technologies that give it its…
Cisco Switches
Discover Features & Capabilities - Cisco Catalyst 3850…
There’s a new switch around the block and its name is Catalyst 3850 – Cisco’s latest addition to its successful Catalyst series switches. The Cisco Cataly…
ManageEngine Firewall Analyzer
Master Your Firewall: 6 Expert-Backed Steps to Boost S…
In today’s evolving threat landscape, firewall audits are more than just a best practice—they're a critical line of defense. Regular audits ensure your fi…
Cisco Routers
Cisco Router 'User Exec' Mode
Introduction
Let's see what it looks like to be in User-Exec mode on a Cisco router. Below, we have telneted into our lab router and are in User Exec Mod…







