In some particularly sophisticated DDoS attacks, the attackers rely on and target the cloud, which allows them to work around conventional defense mechanisms. We explain how a DDoS attack in the cloud works, and how you can defend against it.

Regularly scanning the ports on your own network prevents intruders from sneaking in, but if you have dozens or hundreds of servers, you’ll need professional help: Dr. Portscan to the rescue.

Time and again, situations arise in which admins need access to a system they do not otherwise manage. But, do you want to hand over responsibility for password management to a centralized software? What capabilities must that software have?

Although FTP still does loyal service despite its age, if you need to send sensitive data, you should consider managed file transfer.

SQL injection can strike at any moment. GreenSQL is an effective remedy that sits between the database and application and filters out suspicious queries.

In computer forensics, memory analysis is becoming increasingly important as a means for investigating security incidents. In this article, we provide an overview of the various memory dumping options on Linux and introduce the support in Linux for the Volatility Analysis Framework.

Making your systems really secure can be a bit more complicated than resorting to the use of regular passwords. In this article, we provide an overview of authentication solutions and present potential approaches for common use cases.

We look at the new features in Ceph version 0.56, alias “Bobtail,” talk about who would benefit from CephX Ceph encryption, and show you how a Ceph Cluster can be used as a replacement for classic block storage in virtual environments.

Hardly a day goes by without reports of hackers breaking into government, military, or enterprise servers. If you analyze the details of the hacker’s approach, you will see that, in 90 percent of all cases, SQL injection was the root cause of a server’s compromise.

Sometimes error messages or log entries are too verbose for their own good, disclosing valuable information to attackers.