disable file system access on OpenSSH server

[DrM]

ok, to preface this, im a complete noob to linux and server stuff. i just started openssh today on ubuntu. i eventually plan to give access of this server to some of my friends, but when i log in, i can still access the file system. im logging in with the private key through putty on a windows machine, but am i supposed to give people the private or public key? and is there a way to limit what people can access through the ssh connection?

[2FA]

By default, the key pair that is generated is for one user on the system. You can create users on the server that you can then assign to a user group. From there you can limit what the group can access through permissions. Keep in mind that you will want to generate a key pair for each user individually, that way one user can't log in as another user.

[2FA]

You should checkout this thread to learn more about setting up a Linux server. The thread is specifically about Debian but most of the base commands are the same. 

 

[DrM]

3 minutes ago, DeadEyePsycho said:

By default, the key pair that is generated is for one user on the system. You can create users on the server that you can then assign to a user group. From there you can limit what the group can access through permissions. Keep in mind that you will want to generate a key pair for each user individually, that way one user can't log in as another user.

so would i need a different user account for each person on the host, because the goal of this isnt to access files on the server but just to reroute and encrypt traffic