Most of us subscribing the list seems to have a job as some sort of system operator and so do I. I'm interested in system security, especially in improving it. I'm also interested in operating system technology and other 'low-level' stuff like networking protocols etc. I try to keep at software level. In our network there are few routers, some ISDN stuff, modem ringdowns etc... We also offer Internet services to our customers. Our network is relatively small, I think, but security seems to be an important thing even in smaller networks. Smile.