Dataplicity is a remote terminal for your Pi.
It offers functionality similar to SSH, but it doesn't need any complex set-up to get it working behind firewalls and NAT.
Openport is an easy and secure reverse SSH.
Forward any port, keep track of your machines, share files.
Openport builds a tunnel from your machine to the outside world, so your friends can connect to your services or files directly. Don't worry about firewalls, DNS or FTP.
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