Oliver Schoenknecht wrote: > Hi there, > > I am urgently searching any documentation regarding the creation > of a callback server and the client fitting to this... Do > you know any location where I may obtain this documentation > / HOWTO ? There's a callback mini HOWTO at the Linux Documentation Project. http://metalab.unc.edu/mdw/HOWTO/mini/call-back-mini-HOWTO.html I don't know if it's any use to you. Paul.