Today I’ll show, how to configure email sending with your Debian Linux. The ability to send mails is a very useful feature for every long-running server machine, it’s an easy and common way to notify the administrator in case of any problems. Here are configuration steps for mail-sending with Exim and Google Mail account (Google Apps accounts work the same way too). first of all, we need to have Exim running....
SSH (Secure Shell) allows simple establishment of an encrypted and authenticated connection between computers. In this article I will focus on establishing SSH tunnels without using a password by using asynchronous key pair. This approach is especially very useful in machine-to-machine communication. The idea grounds on asymmetric cryptography, that describes a concept of a key -pair of a private and public keys. In this article it’s sufficient to know, that:...
This short tutorial describes how to configure JBoss Application Server (Jboss GA 5.1.0) on a Debian Linux (Debian GNU/Linux 5.x “Lenny”). The article starts with the installation of Java JDK and continues with JBoss installation and basic configuration according to standard file system hierarchy. Also init.d. scripts configuration is given here. Installing Java SDK Nowadays installing Java environment on Debian is an easy task. I’ve used JDK 1.6. Don’t confound JDK with JRE, because bare Java Runtime Environment is not enough for running JBoss....
Today i will share some thought on software RAID under linux with you. Sometimes you need to store data relative save and high available. That is where RAID solutions come in to play. Especially RAID 1 (mirroring) based solutions provide better availability of your data. But don’t forget to use backups anyway :) Some days ago i installed RAID 1 on Debian Lenny (amd64 arch) without any troubles for now. <UPD Dez 2015: Here missing reference to initial tutorial from Jerry> The Partitions used in the RAID /dev/md0/ should both enable boot flag if you want to boot from RAID....
Sometimes there is a need to extract some files on the Linux console. Below you’ll find a list of the most common methods for that. tar Tar archives are the most common way of distributing bundles of files under Linux or UNIX. The .tar file represents a bundle of files packaged with GNU tar program. To extract such files use: tar xf somearchive.tar tar xvf somearchive.tar Provide option f if you want to extract the content of files....
In this article I explain how to create a copy of the running Magento online shop system. One of the purposes of having duplicates is e.g. the need of the separation of the developing an test environment. Tests are very important. Especially in Magento ;) Many people do official Magento upgrades on productive environments and suffer from it. You don’t need to do so, use always test environment first! So the copy process of Magento shop has following main steps...
My google page-rank is back today. Some days ago I moved that blog to the new domain (alexander.holbreich.org). I’ve placed a .htaccess redirect Rewrite Rule ^(.*)$ http://alexander.holbreich.org/$1 [R=301,L] to the old domain to preserve some humble SEO result of this page. But for some weeks new Blog had no page-rank. Now he is here and the effect of Permanent redirect on google is proved!
Folder Monitr allows automatically upload of Pictures to the Flickr. This tool is very useful to me because it can work automatically in the background and therefore reduce one manual step in my picture processing. So basically i can now use only Lightroom end export my developed pictures to the “watched” folder and they will automatically upload to flickr in the background. All tags are taken and even Set can be specified by subfoldering, which is also cool....
I wrote already in the past about Magento eCommerce System. I’ve been playing with Magento until now. Unfortunately, I had some problems with the installation and I could not find any help on the web. Therefore invested time and finally figured it out for myself, maybe this post can help someone using Magento too. The Problem Every time during the installation of Magento shop I saw the following exception: Error in file: "....
Hello friends, I’m pleasure to report progress in development of wPopularity plug-in. Yesterday I took some time just for me and wPopularity. After hours of bootstrap debugging (change, ftp upload, look ofr changes) of wPopularity I finally understood why activation problems occurred. Also I refactored the plugin. But i’m still not at the and. The next released version is at least 1.0.0. I do not plan to test it on Wordpress version below 2....