Welcome to TechScreen

Welcome to the TechScreen site. This side shall support the exchange of knowledge in the domain of Web Engineering and related aspects. As a side effect, this side is used for research on knowledge management technologies. User can pose challenges in the problem domain and can participate in quizzes. Further a bibliography about arcticles in different related domains is continously extended. Finally, questionnaires on different issues are provided. To be able to participate you need an account and a password from TU Wien's TISS system.

Configure fetchmail and procmail to filter your emails

I got plenty of mail accounts and I have a laptop and a personal computer and I am tired of reading every mail twice. One time at home and one time on my laptop. So I want a mail system where I have to read my mails only one time. Imap seems to be promising to do this and since i got a server who is capable of imap i wanna configure it to get the mails into the right folders from my different mail accounts. And procmail offers a filtering system which can help me in automatically get the mails into the right folder.

Port Coppermine Galery System to support Wordpress themes and functionality

Wordpress is a mighty and easy to use blogging software but in version 2.02 it has not got a good galery system. Therefore I want to use a coppermine galery which is very easy to use and has a lot of nice functionalities like batch uploading. I want to add pictures in a post directly from the coppermine galery and furthermore I want to have an overview page for all galeries which supports the wordpress theme.

Setting environment for Iphone programming in Window platform

As we know, Iphone SDK only works in Intel processor-based Mac running Mac OS X Leopard. However, is there any way to setting it in Window platform ?

The better way than XML to return complex data from server to Rich Internet Applications client (ajax) or Flash

It's sure that XML is the good way for transferring data. However, in some applications, such as Flash, it is take a long time to write complex data ( in server ) as well as to read ( in client ) in XML form.

Database transfer while installing IBM WebSphere Portal 6.0

IBM WebSphere Portal 6.0 is one of the main product in WebSphere Software family and we use it as a prototype of our corporate portal. Installing IBM Websphere Portal 6.0 and using DB2 (Fixpack 11) as a Database we have faced a problem that process of transferring Data from Cloudscape Database to DB2 Database always hangs.

How use to get acces to WLAN in TU Dresden eduroam network.

TU Dresden provides a wireless network with high speed that covers nearly the whole TU campus. However a lot of new, especially foreigner students face the problem that they cannot connect to this network with their current University login and password.

How to make Firefox 3 use Gmail or Yahoo mail when clicking email links in web pages

It's great if you use Outlook to manage all your email, but many people like to use web based email, such as GMail or Yahoo! Mail instead of downloading their email to their computer. And in this cases, users probably wished that Firefox could open there (GMai or Yahoo!) mailbox when clicking an email link on a web page. Instead, Firefox will open Microsoft Outlook (if you have it installed).

Correctly configuring a Jetty Java Servlet container to be used through an Apache Web server via mod_jk

When deploying a JVM-based Web app usually so-called Java Servlet containers resp. application servers are used for the produciton system/environment. Probably the most popular and common Java server in this field is Apache Tomcat (and other even more feature-rich ones like JBoss or GlassFish). Apart from that, there's also Jetty which can be seen as a somewhat lightweight alternative. Nevertheless, there are some subtle differences to be taken into consideration when configuring it as opposed to Tomcat.

Cheap Yet Secure Daily Backups For Database And Files

I need to make backups of a webapplication's MySQL database and some files for a client. Backups should be done on a daily basis and the whole system should be as cheap as possible - "ok, backups are important, but I don't want to spend any money on it anyway...". The backup should be fully automated. Furthermore installing an FTP server on one of the client's local machines (to upload the backups there) is not wanted, due to security concerns.

PostgreSQL Database Backup Takes Too Long

While giving a training course on PostgreSQL, the problem arose that a pg_dump of their database would take too long. The database contains more or less nothing else than BLOBs (PDF files). Currently only 500MB, but there are 45GB of archived files (from the last 10 years or so) and new ones will be added on a daily basis. So at least 50GB (older files could be removed) will be stored in the database. Doing a test dump with pg_dump takes approximately 3 minutes for 500MB (on the given system) - which means 50GB will take somewhere around 5 hours.


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