Need to install packages and libraries on Linux machines

Hi, We have some Linux machines that dont have direct internet access. But they are accesible only through my laptop using VPN. We want to install some products on those machines and it says that some packages are missing. Yum is not working it says : This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register. If we had direct access to that machine, I could have used yum install. When we get that package by downloading on my laptop and then copying to those Linux machines, this proceeds further but after some time some next package/library is required. I have another Linux machine where those packages/products are already installed. The task is to solve this problem and get those products installed. Will have to use team viewer and work from my laptop using desktop sharing. 1. Someone who has Redhat-Linux subscription. 2. Someone who has experience with Linux packages installation and creating yum repositories and Secure CRT port forwarding should contact.