I haven't configured YUM . How do I do it? Sorry if this is a really stupid question, but I have no idea about it. Moreover, I would also like to use APT afterwards. I really want to try both of these. I have used apt-get before many a times, but never used YUM. Can anybody post the procedure to get this working? Which repositories to be added, how it is to be configured? And yes, how do i use the apt-get on Cent OS too. Note that I will be using only one at a time. And I will keep the other thing for future reference. Thank you. -- "No-one dies a virgin. Life screws everyone."