free Remote Desktop access to differrent locations

For free, you could use SecureVNC

I use to have logmein central but I not free anymore

I feel your pain, but the cost of the service is not outlandish. If your in a support position for these systems,
logmein pro is 449 py for 10 machines. Central is 499 p/y for 25. That breaks down to about $40 p/m.

That's a pretty good deal in terms of a pricing model for business needs. If your a support desk, its a no brainer.

Good luck with whichever direction you go!
Matt

yes u right but to get files transfer also need log mein pro

you can use a cloud source, like dropbox, Google drive, etc

The central plus has the file transfer, which is double the price.  If this is a pay for support model, it still is low cost in comparison, especially if you add machines and spread that cost around. However, it is not growing, then just use the pro version for features you need and stable pricing.

I don't know your model, if this is business or personal, etc.. I would only recommend that you make the choice that works for you.
you can always pin hole the firewall, and leverage like a ddns fqdn for the firewall rule, or have the customers give you vpn access.

thanks so much very valuable info.........
thanks