private lesson and advice about centos, postfix, dovecot anc such

requirements: * you need to have a good english\hebrew * you need to know what you are doing in the subject i need help with * the lessons hours will be divided in parts * you need to explain different parts step by step not just as i need to repeat what you do but i want to know what i am doing while learning i would like to test our communication language for a short phone call before awarding you the project and then we canmove on to as many hours as i need which i could only estimate that i need about 6 in the beggining but if i will need more i guess i will rehire you. it may take more than 6 hours, basically i need to know how to work with centos, with postfix, iptables, webmin, ftp and a little more in the beggining. in the end of my training i sould be able to operate the server to work with hosting domains (not just as a hosting the domain itself but working with domains which are pointed to the server), host multiple websites, host emails with different domains and ability to work with pop3, smtp and imap, working with ftp server accounts and some general knowledge on the system itself, how to maintain it and the general uses and management of webmin control panel. note: i would really like to know how to get the description above done using databases and not using files on the system. i'm kind of new to linux and have some major questions but i do have technical knowledge and have a fast understanding :-) please do not bid unless you have a very good english\hebrew level of speach. as long as our communication will be good and the winner knowledge will be very good i plan on being a returning customer for more hours regard to this project and others