VPS SSH account for establishing minimum rights on the proxy service

Based on how SSH proxy tunnel has become more and more popular lately, this article will teach you how to open public SSH on VPS account used to evade blocks climbing the walls. Method is very simple, as long as can be achieved in two steps:
1 landing VPS, enter the following command to create a least privileged user (change username to the username you want):
useradd -M -s /sbin/nologin -n username
2, modify the user’s password:
passwd username
When prompted, enter the new password twice. Only that’s all! Then you will enjoy the fun of SSH-agent now!