Author: <span class="vcard">Noel Alvarez</span>

Linux CentOS – -bash: updatedb: command not found

I recently installed Linux CentOS using the minimal install ISO. I attempted to use the updatedb command but I received the following error: #updatedb -bash: updatedb: command not found The solution for this was to install mlocate. # yum install mlocate -y Installed: mlocate.i686 0:0.22.2-3.el6 Complete! Enjoy!


Linux CentOS – Configuring DNS Servers

You may use the following method to configure the Domain Name System (DNS) servers that Linux CentOS (http://www.centos.org/) will use. In this particular example the server will be configured to use the well known Google public DNS servers that utilize the following Internet Protocol (IP) addresses: 8.8.8. & 8.8.4.4. Begin by logging into the server…


Group Policy Object – Folder Redirection

You may use the following Group Policy Object (GPO) settings to configure folder redirection in a Windows Server 2008 R2 environment. Folder redirection gives a systems administration the ability to redirect the path of a folder to a location that he or she specifies. In this example the desktop folder will be redirected to a distributed…


Microsoft Deployment Toolkit 2010

The Information Technology department I am a member of is currently completing a domain migration project. One portion of my responsibility for this project was to create a Windows 7 Enterprise x64 image that included a number of applications such as Microsoft Office 2010 Plus, Adobe Acrobat X Pro and numerous others. The solution used…


Linux CentOS – Routing Table Configuration

You may use the following method to add a static route to the routing table of a Linux server using the command line. The server in this example is running CentOS 5.5 64 bit. I have decided to create a static route to Google.com but before doing so I need to find the Internet Protocol…


Networking – Subnetting Practice

If you ever need to practice your subnetting you may use the following website http://www.subnetting.org/. The website contains numerous subnetting questions that will allow you to test yourself periodically. If you don’t find yourself subnetting every day you may use that website for about fifteen minutes each day to be certain that you don’t forget how…


Cisco – Building a Host Table on a Router or Switch

In this example there is a router with a hostname of “router-2″ that has a serial interface configured with the Internet Protocol (IP) address of 172.16.4.2. Without an entry in the host table of the router or a Domain Name System (DNS) server I cannot use the hostname of the router in order to ping…


Cisco – Configuring Static Routes

You may use the following method to add a static route to the routing table of a Cisco router. Before configuring the static route(s) you may run the following commands in order to get a better idea of the network(s) configured on the existing router. router-1#show ip route Codes: C – connected, S – static,…


Cisco – Troubleshooting Static Routes

The following example is utilizing two Cisco 2500 series routers with two serial interfaces and two ethernet interfaces. I created a lab Wide Area Network (WAN) in order to configure static routes on Cisco routers. My goal was to create a static route from the ethernet interface (172.16.3.1) on router-1 to reach the ethernet interface…


Cisco – Performing a Password Reset on a Cisco Router

If you ever find yourself locked out of a Cisco router because you forgot the enable secret (privileged mode) password you may use the following steps to perform a password recovery on the Cisco device. The router in this example is 1700 series Cisco router. 1. Press ctrl+break during the boot sequence and enter ROM…