hi, is it me or is it openstack who can't modify security groups for running virtual machines? nova help | grep sec doesn't give me a clue. thanks for a hint, Wolfgang -- DI (FH) Wolfgang Hennerbichler Software Development Unit Advanced Computing Technologies RISC Software GmbH A company of the Johannes Kepler University Linz IT-Center Softwarepark 35 4232 Hagenberg Austria Phone: +43 7236 3343 245 Fax: +43 7236 3343 250 wolfgang.hennerbichler at risc-software.at http://www.risc-software.at