Server unexpectedly closed network connection on A

问题:

I am getting the error of 'Server unexpectedly closed network connection' on Amazon ec2 Linux server. I tried to connect via putty and winscp too.

Till yesterday I was able to connect. Yesterday I just have given full permission to it's /etc/ directory and the subdirectories.

Now how to get resolve this issue. I have already raised a request to amazon support to set a default permission to /etc.

回答1:

Here is a very similar question: Can't access to amazon ec2 instance

From Matt Caton's answer:

Take a look at this question: https://serverfault.com/questions/364677/why-is-chmod-r-777-destructive which describes a similar situation.

And a look at this potential resolution: https://serverfault.com/questions/234061/re-gaining-root-access-to-an-ec2-ebs-boot-image