XenSource and VMware, two major figures in virtualisation security have warned of challenges facing IT managers in implementing secure virtual environments. Speaking at the RSA Conference in San Francisco last week, Simon Crosby, chief technology officer for XenSource, said security policies could be broken by misconfiguration. "Virtualisation can challenge an IT organisation's infrastructure, which suddenly becomes dynamic," ...

Symark's new PowerAdvantage utility allows system administrators to centralize their authentication, authorization and access management across Windows, Unix and Linux networks. It provides cross-platform unified log-in -- users can have a single log-in and password for all Unix, Linux and Windows machines. This eliminates the need to establish separate access credentials for each system. Symark International ...