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Unable to upload product images in Magento

This is a very rare bug and the chance to experience this problem isn’t very big, but I hope it will save the hair pulling for someone :) The problem manifests itself in products -> edit -> images. There, when you click on the “Browse” button to locate the image on your local...

How to create a file of arbitrary size

Sometimes you might need to test certain functionality of a file system, e.g. if quotas are reported correctly. For this purpose you might want to upload a file on the server in specified size. You can easily create such a file using the command below: dd if=/dev/zero of=filename bs=1024 count=1048576 if...

Delete files older than X nuber of days

Here is another bash one-liner. This one will help you find and delete files older than X number of days. Very useful in a directory full of various types of logs, such as /var/log: find .  -type f -mtime +X -exec rm -rf {} \; ;done This assumes, that you are already in the directory in question. Simply...

How to make exim send from a new IP

If you need to send lots of e-mail addresses via your Exim MTA, you will most probably want to do so from a new IP address, so you can preserve your main one. Configuring this is as easy as 1-2-3 :) Open exim.conf for editing with your preferred text editor and find the following lines: remote_smtp: ...

Server virtualization and consolidation with Innotek VirtualBox

This is a short technical review of the Innotek VirtualBox software showing the pros and cons of server virtualization and consolidation as a whole. In this article I will show you how to install the VirtualBox application and get running, as a proof of concept, an Ubuntu Linux on top of Microsoft Vista...

Minimal FreeBSD Installation

This article shows you how to install one of the most stable OS in a virtual environment using the VMWare virtualization server. This however should not frighten or disappoint you, as the technique is pretty much the same for non-virtual environment. First lets start with the Requirements A computer...

Virtual FreeBSD part 2: Installing the BASH shell.

This is the second part of the “Virtual FreeBSD” tutorials series. In the first part we have installed the OS from the scratch by downloading most of it from the Internet. In this second tutorial we will customize the default shell and install a little bit more user-friendly one. But first...

Ubuntu wireless application

Many Ubuntu users have problems with their wireless adapter. Here is the ultimate solution for the problem: The key application is called wicd. Before you install it, make sure you have no automated settings for your network interfaces: sudo vi /etc/network/interfaces Make sure the only entries are: auto...

Minimal Gentoo Installation

Gentoo OS Installation from Minimal Disk This artlicle will show you how to install Gentoo OS from a minimal installation CD on your computer. Before proceeding, please ensure that you have the following: A computer infront of you. Available connection to internet – you will need to download...

How to edit keyboard layout in Windows Vista

Windows Vista is the new OS product from Microsoft. As everything new, this one includes some not so pleasant surprises. For example the keyboard layouts are drastically changed. Here is a short guide on how to edit these in Vista for your convenience. First off, you will need Microsoft’s The Microsoft...
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