There are times when you may want to add a second or multiple IP addresses to your linux system. It’s fairly straightforward to add a sub-interface to your current configuration. In fact, it’s just as easy to add ten sub-interfaces as it is one.
Tags: ip addresses, linux, multiple ip, ubuntuNagios is an open source tool that monitors any device on a network that is IP addressable. I use it extensively on a daily basis at my workplace. It is easily configured to monitor a servers availability on the network from just simple TCP/IP ping requests, to more advanced service monitors such as http, dns, telnet, smtp and snmp. With additional plugins it can also monitor health status of devices such as CPU load, memory utilization and drive space consumption.This tutorial is created as a way for me to document the steps I took to install Nagios. There are many ways to install Nagios into a functional system, this just happens to be the way that I got it to work. If you are looking for an easy way to build your own Nagios server follow along and you’ll have your own running in no time.
Tags: cpu load, linux, memory utilization, Nagios, service monitors, snmp, ubuntu
Here is a little glimpse of the next article I’m writing. It’ll be a step-by-step tutorial on installing Nagios on Ubuntu. It’s a little lengthy so it’s taking me a little time to get all the screenshots organized. I’ll get the tutorial out the door as fast as I can. In the meantime, here is a link out to the Nagios web site for more information.
Terminal Services Remote Administration mode is a great tool for gaining access to servers at remote sites. It allows for a maximum of two sessions to allows administrators to connect and perform their duties. By default broken connections are set to go into a disconnected state rather than resetting. This allows system updates, patches or other tasks being performed on the server to continue even if the remote session gets interrupted.
Tags: administration mode, rdp client, Terminal Services, terminal serverIf you’re anything like me you tend to have several tabs open in Firefox at any given time. Anytime I’m reading an article and I come across a link I want to follow I’ll open it in a new tab with the intent of checking it out when I’m done with my current page. More often than not this tends to leave me with 1-2 dozen tabs open at any given time.
Tags: Firefox, tabsSince I covered configuring DHCP Addressing for Ubuntu Linux yesterday, I figured it would be a good idea to post a quick article about assigning static IP addresses to your system. Often when you install Ubuntu on a network with a live DHCP server, it will not give you the chance to statically set your IP when you are installing. After the install it’s easy to go in and make the necessary changes.First there are a few decisions you need to make. You will need to decide what IP address, subnet mask, network id, broadcast address and gateway address you will be using on your system. It is beyond the scope of this article to help you caclulate the necessary settings. If there is enough demand, maybe I’ll write a TCP/IP subnetting tutorial.
Tags: broadcast address, gateway address, linux, network id, static ip addresses, subnet mask, tcp ip, ubuntuNormally the network interface cards are configured during the installation of Linux. However, sometimes certain circumstances require you to change the addressing scheme of your system. This article will take you step by step through the process of configuring your system to use DHCP for obtaining its IP addressing information. Ubuntu has some very nice GUI tools to allow you to change your settings with the click of the mouse but this article will focus on how to make your changes from a command line in the event that you don’t have the GUI installed. Also, this tutorial is Ubuntu/Debian centric but the principles can be applied to many other Linux distributions, especially any that are based on Debian.
Tags: dhcp, ip addressing, linux, nano, network interface cards, ubuntu
The company I work for uses Citrix to deliver Terminal Services desktops to users through-out the organization and remotely. One of the applications used relies heavily on allowing the “Print Screen” button to generate a print job. Within the walls of the organization this work quite well. We have Wyse Winterm 1200LE’s that pass the “Print Screen” key press through to the Citrix servers quite effectively. However, when using the Citrix Web Interface remotely the “Print Screen” function is captured by the host operating system and not passed through the Citrix ICA web client to the server.
