我基本上不会敲门请对方开门，对我来说这就是在麻烦别人，哪怕我是一个丢三落四的人也会反反复复出门前确认我有没有带钥匙。
Why is this step necessary? hello.2heng.xin might not be the server where you are registered, so we need to redirect you to your home server first. Don't have an account? You can sign up here
hello.2heng.xin
