Showing headlines posted by aweber

A step-by-step tutorial outlining how to install Tomcat 7 on the Ubuntu 11.04 server.

The Linux utility sed provides a great way to substitute text strings in a file. Using the "s" option and by listing the current string and the string to use as the new text allows sed to perform this task.

The advantage of using JMeter is that you can use it to create a graph which is visually more appealing to many administrators.

Free software evangelists take pride in spreading the news about freedom and open source. They inform those that still feel locked into the old software distribution systems. The days of computer users being bogged down with virus-infested, bloated, and locked down systems are quickly coming to an end.

sed can select lines in a file that can be individually modified, printed or deleted. sed is able to select and number any of lines within a file.

In previous tutorials we've learned SUSE has made life very easy for System Administrators having developed graphical tools to manage many system components including the iSCSI target. As with most things in life there is a price to pay for this ease: YaST only writes to the configuration files and the changes do not come into force until the service is restarted. Command Line knowledge lifts us out of troublesome pit and gives us full control of our systems. Additionally we will add in ISNS (Internet Storage Name Service) to locate ISCSI Targets on our network.

In this week’s edition of TLWIR, I will take a look at the continuing twentieth anniversary celebration of our beloved GNU/Linux operating system. I will also look at Microsoft’s olive branch extended to the Linux community. In yet another surprising turn of events, the U.S. Department of Defense has released its own GNU/Linux distribution. Finally, I will look at the increasing “biodiversity” in the free software environment, and how Linux and other free operating systems benefit from this diversity.

There are three ways to start applications when the Ubuntu server starts; upstart jobs, backward compatible system-V scripts and using rc.local. This article will provide examples of how to make it work.

In the last edition of TLWIR, I discussed Toyota’s recent embrace of the GNU/Linux operating system. In this week’s edition, I will expand on this theme of organizations embracing the concepts of openness and freedom.

When you want to reuse functions in multiple scripts you can create a library which allows you to access those created functions.

The user can alter the Bash shell environment by adding functions to their .bash_profile or by editing the global /etc/profile script for all users. This feature provides a great deal of flexibility for the administrator and user.

Functions may be defined at the command-line and then used as many times as needed as long as a new shell is not started. This feature of the Bash shell can be a handy tool if you are repeatedly performing the same command or series of commands.

This week, the fundamental threads that runs through all of the stories are freedom, protecting GNU/Linux from attack, and providing viable alternatives to proprietary software.

Functions are scripts within scripts in Bash that can be used to increase speed, save on resources in a script and provide reusable information since it is stored in memory. Functions must be declared before they can be used in the Bash shell script.

Which GNU/Linux distribution a person prefers is a very individual choice. Some people like distributions that give them total access: the freedom to do whatever they want. Others want a desktop OS that will hold their hand if they run into problems. There is no single distribution that provides all of the right answers; each GNU/Linux user has to find the operating system distribution that best meets their own needs. In this week’s TLWIR, I will look at some of the best GNU/Linux distributions with a unique twist: I will compare the distribution to the city that I think most embodies its fundamental spirit.

You may be using Linux at home or in an office environment, but often we still need to provide access to Windows desktops. Begin Linux has taken you though setting up a SAMBA Domain Controller and File Server on openSUSE 11.4. In this tutorial, again using openSUSE 11.4 we will take the time to look at adding in Print Server capabilities. Providing Windows Users have transparent access to printing.

Beginners can enjoy powerful image editing features, batch conversion, and much more with Converseen, a graphical front end for ImageMagick.

One major feature of IPv6 is its ability to auto-configure the host portion of the IP address using the MAC address from the Network Card. We may have seen this already with the local-link address, however, in this tutorial will look at configuring the RAdvD on openSUSE 11 to advertise the Network Prefix and default gateway so we can work with global addresses without any configuration on the hosts. This will differ from DHCP as we do not need to configure the RAdvD with the host addresses. These will come from the hosts own MAC address helping us reach Zero configuration networking. Or at least very little configuration.

For the most recent week, I picked the four stories that most excited me about the future of Linux and free software. Here is the trend that I see: Linux and free software are rapidly becoming more accepted, and more mainstream. Pretty soon, you won’t see the name “Linux” being hidden behind names like Android, WebOS, and Meego. This week’s stories demonstrate the fact that Linux can help companies make money, save money, and run extremely fast and powerful computer systems. These four stories illustrate that Linux and free software may have a future even brighter than we imagined:

The Linux utility psacct is an excellent tool for monitoring your user activity and the resources used by processes and applications.