How to fix request failed on channel 0

Question

When I want to connect to my server like this

ssh -a username@my-server.de -p 22

it gives me two error messages:

PTY alloca         


        

Answer 1

I encountered this error while using my git bash. I was able to solve this by re-installing git for windows. More details in this answer.

Answer 2

in my case, the SFTP server will reject your SSH connection.

Answer 3

try with option -NT

ssh -NT ...

Answer 4

It's an old question, but if someone gets here like me...

This might be result of a wrong date in the server. If you are working with an embedded system this might be the cause... So check your date:

$ date

Answer 5

I also faced the same issue. Just restarting my servers solved the issue.

Answer 6

I had the exact same error trying to connect via ssh to my server. As I can see you're using a server provided by Hetzner connecting to it on port 22:

debug1: Connecting to xxx.your-server.de [188.40.3.15] port 22.

The offical wiki/documention from Hetzner says:

Protocol for encrypted remote diagnostics for servers/computers(consoles). The SSH port to be used is 222.

So you have to connect via port 222:

ssh -p 222 username@my-server.de