Virtcontrol is a python based commandline utility for centrally controlling a number of virtualization hosts. It uses the libvirt python api. At the moment it has support for Xen.
WARNING: Project moved to http://github.com/plashchynski/viewssld viewssld is a free and open source non-terminating SSLv2/SSLv3/TLS traffic decryption daemon for Snort and other Network Intrusion Detection Systems (IDS).