security

Juniper Firefly Perimeter

I’m a big fan of Juniper Networks! I work mainly with the SSG (ScreenOS) and SRX (Junos) series. The Juniper SRX is a network security solution, which can be positioned in the data center or at the branch. You will surely agree, that virtualization and cloud computing changed a lot from the network perspective. This demands security solutions that are not bound to hardware boundaries. Juniper Firefly Perimeter addresses this demands.

HP VSR1000: How to configure a IPsec tunnel

One possible use case for the HP VSR1000 is to build IPsec tunnels for secure data transfer. In this post I will show you how to configure a IPsec tunnel between two HP VSR1000. If you need a short introduction, feel free to take a look at this article. The experimental setup We have two server VMs (in this case Windows Server 2008 R2 with SP1) and two HP VSR1000 Virtual Service Router.

Regenerating expired vCenter SSL certificates

During a vSphere 5.0 > 5.5 upgrade I got this message: The SSL certificate for this product is expired. See Knowledge Base article kb.vmware.com/kb/1009092 The customer hasn’t installed CA-signed certificats, so the expired certificates are the out-of-the-box self-signed certificates. The certificates are valid for two (VirtualCenter 2.5) respectively 10 years (since vCenter 4.x), depending on the Version. The only way to continue the installation is to renew the certificates. After renewing the certificates, you can simply continue the setup due the fact, that the vCenter service is stopped at this point of the setup and it loads the new certificates during startup.