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I am trying to login into one(X) server using putty (port 22), it is showing Fatal Error. In Pop-up (Network error: Connection timed out).

But when I am in different server(Y) on command prompt using

ssh (X)hostname

it is working, only issue with the putty.

At the same time, I am able to logged into some different servers(Y,Z) through putty.

Praveen Korrapati
  • 51

2 Answers2

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Go /etc/ssh/sshd_config and find the line # Authentication: LoginGraceTime 120. Now change 120 to 300 and save it. I think it will give you 5 minutes more than 2 minutes for logIN.

Najim Sujon
  • 109
0

I started getting time-outs for SSH connection after I installed firewalld package on Ubuntu 15.04. It must be something in the firewall settings that instructs the SSH server to refuse connection to specific clients (evidently, Putty is among such clients).

Removing firewalld resolved the problem for me.

apt-get autoremove firewalld

If you still need a firewall, you will need to find out which one you're using and adjust the settings accordingly.

Eugene G
  • 1