Skip to main content

Restart ALSA driver on OpenSuse

From time to time it can happens that your sound driver stops to work completely or just for some application.

In this case you need to restart your ALSA driver. Here you can see how you can do it on OpenSuse:

  • start terminal and type 
  • cd /etc/init.d/
  • sudo ./alsasound restart 

After this your driver are restarted and you are ready to continue with your works ;).

Popular posts from this blog

Checking file's "magic numbers"

Few days ago I had very interesting task. Our customer required that we perform checking of so called file's "magic numbers" to determinate does uploaded file correspond to it's extension. 
We are already allowed only to upload files with some predefined extensions (PDF, DOC ...). But this can not prevent some evil user to update an exe file after renaming it to PDF or DOC.
So first of all I will explain what are "magic numbers", and then I will show how we handle them.

Simple Workflow Engine With Spring

Few months ago, during working on one of the company project, we had need to developed  REST services which is used for sending an email depending on data sent by client application. During developing this service we decide to create simple workflow engine which will be charged for sending an email, but also this engine can be used for any kind of simple flows. In this article i will explain step by step how you can implement your simple workflow engine which can handle sequence flow.

Configure Seam Mail

From time to time we have need to send an e-mail from application. This task should not be so complicated, but if you do it for the first time you can get some troubles and it can take you some time. Because of that I will try to explain how you can configure it correctly.