HI,

I had been using linode successfully for the last 3 months. From a few hours, I am not able to login through SSH via putty. After I enter the username and password, putty throws a pop up error, Server connection closed unexpectedly.
Also when I try from filezilla, I get an errorI had managed to login to putty and ftp about 16 hours ago. From about 8-10 hours I am facing this problem. I contacted the linode support, who tried a few thingsand finally said, your linode must be misconfigured. They asked me to post here for answers. Hope someone helps me out. And by the way , I havent made any changes in configuration of linode.

Please help.

I did not find the right solution from the internet.

References:
https://forum.linode.com/viewtopic.php?t=8782
Video Animation Production Agency

Thanks!