LinuxJournal: I have a friend who has had nothing but nightmares result from his attempts at setting up the fabled low-latency high-performance Linux audio system. In sympathy with his plight I present here a primer in three parts for troubleshooting common and uncommon problems with the Linux sound system.
element14: Suppose you need to do a batch operation on a large set of pictures? Although Gimp is an extremely powerful tool for image editing and processing, it is still very time consuming to do a series of tasks on a large list of images in GIMP without wasting a lot of time.
kaki5: If network manager does not solve the problem, the first step should be to see which driver your wireless card needs. Do a search for your card on Google and in the Ubuntu Forums to find out which driver you need. Many of the drivers are already included in Ubuntu, but some newer drivers may not be present.
When reading a hint on the website of LinuxFromScratch I discovered the special capabilities of unionfs, specially in combination with chroot. Later I read a HowTo on a wikiwebsite of Gentoo, about entering a chrooted home directory when using a special script as shell. Combining these two brings me to using a chrooted environment, which you enter when logging in as a special user. This environment is an exact copy (mirror) of the system you are working on.
LinuxJournal: Like other OpenOffice.org applications, Calc has several dozen options in how it is formatted and operates. Some of the tabs for these options resemble those found in other OpenOffice.org applications. Others are unique to Calc and the business of spreadsheets. Either way, the more you know about Calc's options, the more you can take control of your work.
polishlinux: This article shows how to create an rotating sphere in GIMP with GAP plugin. Basic knowledge of this graphics manipulation suite will be required to successfully follow the tutorial.
OpenOffice.org Training, Tips, and Ideas: If you choose Insert > Chart in Calc, in the new tool, without a range selected, it's not much use. You get a big blank chart. In Writer, however, at least in this stage of development of the tool, you get something different.
This article describes how you can monitor your Postfix mailserver with the tools Mailgraph and pflogsumm.
Vsftpd is one of the most secure and fastest FTP servers for Linux. Usually vsftpd is configured to work with system users. This document describes how to install a vsftpd server that uses virtual users from a MySQL database instead of real system users.